JP2009204426A - Food testing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a food testing system for efficiently testing a test target. <P>SOLUTION: The food testing system 1 performs the test of the test target consisting of food and includes a light source 10, a plurality of detectors 21-24, and a testing machine 30. The light source 10 outputs near infrared rays and each of the detectors 21-24 includes a spectroscope 21a for spectrally diffracting the diffused and reflected light diffused and reflected by the test target and a light receiving element unit 21c for receiving the spectrally diffracted lights of respective wavelengths to output a signal. The testing machine 30 performs the test of the test target placed in the respective visual field regions 21S-24S of a plurality of the detectors 21-24 on the basis of the spectrum of the diffused and reflected light obtained by the signals output from a plurality of the detectors 21-24. Then, a plurality of the detectors 21-24 are arranged so that the respective visual field regions 21S-24S are shifted in the direction vertical to the advance direction of a production line. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a food inspection system that measures diffuse reflection light obtained by irradiating an inspection object made of food with near infrared light and inspects the inspection object based on the result.

  In the food processing process, inspection of foreign matters and abnormalities has become increasingly important with increasing consumer interest in food safety. For this reason, various methods for detecting foreign matters and abnormalities have been studied.

As a method for inspecting foreign matters contained in food, for example, Patent Document 1 discloses a method for detecting foreign matters by irradiating food with visible light or near infrared light and measuring the spectrum of the reflected light. Yes.
JP 2004-301690 A

  Generally, when inspecting food, food as an inspection object is placed on a belt conveyor, and a detection device such as a camera is fixed above the belt conveyor. Then, as the belt conveyor advances in the traveling direction, the visual field area of the detection device moves along the direction opposite to the traveling direction of the belt conveyor.

  The detection apparatus for measuring the spectrum of reflected light used in the method of Patent Document 1 described above inputs slit light as reflected light, for example, and splits the reflected light in a direction perpendicular to the longitudinal direction of the slit light. Light of each wavelength is received by the light receiving elements arranged in a dimension. The visual field area is about 10 cm in the longitudinal direction of the slit, and is smaller than the dimension in the width direction of a general belt conveyor. For this reason, it is difficult to inspect all foods placed on the belt conveyor.

  Then, an object of this invention is to provide the food inspection system which can test | inspect all the test objects efficiently.

  The food inspection system of the present invention is a food inspection system for inspecting an inspection object made of food placed on a mounting surface along a production line and transported along the production line, A light source to output, a spectroscope that has a field area on the mounting surface, and that diffuses and reflects diffusely reflected light that is diffusely reflected by the inspection object in the field area of the near-infrared light output from the light source, and A plurality of detection devices each including a plurality of light receiving elements that receive light of each wavelength dispersed by the spectrometer and output a signal corresponding to the intensity of the received light, and signals output from the plurality of detection devices An inspection device for inspecting an inspection object based on the spectrum of the diffuse reflection light obtained, and the plurality of detection devices are arranged so that each visual field region is shifted in a direction perpendicular to the advancing direction of the production line. That And butterflies.

  The food inspection system of the present invention includes a plurality of detection devices, and the plurality of inspection devices are arranged so that the visual field regions of the plurality of detection devices are shifted from each other along a direction perpendicular to the traveling direction of the production line. Yes. As a result, even when the visual field area of one detection device is small with respect to the length in the direction perpendicular to the traveling direction of the production line in the area where the inspection object is placed, the visual field area as a food inspection system is reduced. Can be bigger. Therefore, all inspection objects can be inspected efficiently.

  Preferably, the plurality of detection devices are arranged such that an incident surface on which diffusely reflected light is incident is opposed to the placement surface, and is shifted from each other in the traveling direction of the manufacturing line and the direction perpendicular to the traveling direction. By arranging in this way, even when the size of the detection device main body is large with respect to the visual field area, the detection device main body is prevented from interfering and the visual field is widened in the direction perpendicular to the traveling direction of the belt conveyor. An area can be secured.

  A food inspection system according to the present invention is a food inspection system that inspects an inspection object made of food that is placed on a mounting surface along a production line and transported along the production line. A spectroscope that has a field area on the mounting surface, and that diffuses and reflects diffusely reflected light diffused and reflected by the inspection object in the field area of the near-infrared light output from the light source, A plurality of light receiving elements that receive light of each wavelength dispersed by the spectroscope and output a signal corresponding to the intensity of the received light, and an incident surface on which diffuse reflected light is incident is opposed to the mounting surface , An inspection device for inspecting an inspection object based on a spectrum of diffusely reflected light obtained from a signal output from the detection device, and a detection device in a direction perpendicular to the traveling direction of the production line By moving the Characterized in that it comprises a moving means for moving the area in the traveling direction perpendicular to the direction of the production line.

  In the food inspection system of the present invention, the detection device is moved in the direction perpendicular to the traveling direction of the belt conveyor, so that the visual field region of the detection device can be moved in the direction perpendicular to the traveling direction of the belt conveyor. Therefore, even if the field of view of one detector is small relative to the length in the direction perpendicular to the production line in the area where the inspection object is placed, the direction perpendicular to the direction of travel of the belt conveyor It is possible to move the visual field area. Therefore, all inspection objects can be inspected efficiently.

  A food inspection system according to the present invention is a food inspection system that inspects an inspection object made of food that is placed on a mounting surface along a production line and transported along the production line. A spectroscope that has a field area on the mounting surface, and that diffuses and reflects diffusely reflected light diffused and reflected by the inspection object in the field area of the near-infrared light output from the light source, A detection device including a plurality of light receiving elements that receive light of each wavelength separated by a spectroscope and output a signal corresponding to the intensity of the received light, and diffusion obtained by a signal output from the detection device Based on the spectrum of the reflected light, an inspection device that inspects the inspection object, a reflecting mirror that is disposed opposite to the mounting surface and reflects the diffuse reflected light to the detection device, and perpendicular to the traveling direction of the production line Moving the reflector in the direction More, characterized in that it comprises a moving means for moving the viewing area in the traveling direction perpendicular to the direction of the production line, the.

  In the food inspection system of the present invention, the diffusely reflected light diffusely reflected by the inspection object is reflected by the reflecting mirror and input to the detection device. Since the reflecting mirror that reflects the diffusely reflected light is moved in the direction perpendicular to the traveling direction of the belt conveyor, the visual field region of the detection device can be moved in the direction perpendicular to the traveling direction of the belt conveyor. Therefore, even if the field of view of one detector is small relative to the length in the direction perpendicular to the production line in the area where the inspection object is placed, the direction perpendicular to the direction of travel of the belt conveyor It is possible to move the visual field area. Therefore, all inspection objects can be inspected efficiently.

  A food inspection system according to the present invention is a food inspection system that inspects an inspection object made of food that is placed on a mounting surface along a production line and transported along the production line. A spectroscope that has a field area on the mounting surface, and that diffuses and reflects diffusely reflected light diffused and reflected by the inspection object in the field area of the near-infrared light output from the light source, A detection device including a plurality of light receiving elements that receive light of each wavelength separated by a spectroscope and output a signal corresponding to the intensity of the received light, and diffusion obtained by a signal output from the detection device An inspection apparatus for inspecting an inspection object based on a spectrum of reflected light, a reflective mirror for reflecting diffusely reflected light to a detection apparatus, and a reflective mirror for a mounting surface with a line parallel to the traveling direction of the production line as an axis The angle of the reflective surface And by, characterized in that it comprises a moving means for moving the viewing area in the traveling direction perpendicular to the direction of the production line, the.

  According to the food inspection system of the present invention, the angle of the mirror surface of the reflecting mirror and the mounting surface is changed by rotating the reflecting mirror around an axis parallel to the traveling direction of the production line. It can be moved in a direction perpendicular to the traveling direction of the conveyor. Therefore, even if the field of view of one detector is small relative to the length in the direction perpendicular to the production line in the area where the inspection object is placed, the direction perpendicular to the direction of travel of the belt conveyor It is possible to move the visual field area. Therefore, all inspection objects can be inspected efficiently.

  According to the food inspection system of the present invention, all inspection objects can be efficiently inspected.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings. In the description of the drawings, the same reference numerals are assigned to the same elements, and duplicate descriptions are omitted.

(First embodiment)
A first embodiment of a food inspection system according to the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a diagram illustrating a configuration of a food inspection system according to the first embodiment. FIG. 2 is a diagram illustrating an arrangement of detection devices in the food inspection system according to the first embodiment. The food inspection system 1 according to the present embodiment is a system for inspecting whether there is a foreign matter mixed in an inspection object (not shown) distributed on the belt conveyor 2 or an abnormality of the inspection object.

  The inspection object is food. The food inspection system 1 detects foreign substances such as hair and other metal-derived materials such as metals and food impurities derived from equipment used in food processing processes. In addition, the food inspection system 1 measures the amount of moisture and sugar contained in the inspection object in order to detect the abnormality of the inspection object. The food inspection system 1 measures the spectrum of diffusely reflected light obtained by irradiating near infrared light, and detects foreign matter mixed in the inspection object or abnormality of the inspection object based on the spectrum. Therefore, the food inspection system 1 includes a light source 10, a plurality (four in this embodiment) of detection devices 21 to 24, and an inspection device 30.

  The light source 10 irradiates near infrared light having a certain wavelength band toward a predetermined region 3 on the belt conveyor 2. Near-infrared light emitted by the light source 10 is light having a wavelength range of 800 nm to 2500 nm. In the present embodiment, it is preferable to perform measurement in a wavelength range of 1000 nm to 2500 nm, but this wavelength range can be appropriately changed according to the application. Moreover, the area | region 3 is a partial area | region of the surface (mounting surface 2b) of the belt conveyor 2 which mounts a test target object. This region 3 is a region that extends in the width direction perpendicular to the traveling direction 2a of the mounting surface 2b and covers from one end to the other end of the mounting surface 2b.

  The light source 10 includes an SC light source unit 11, an irradiation unit 12, and an optical fiber 13 that connects the SC light source unit 11 and the irradiation unit 12. The SC light source unit 11 generates super continuum (SC) light as near infrared light. The SC light source unit 11 includes a seed light source and a non-linear medium, inputs light emitted from the seed light source to the non-linear medium, and outputs SC light by broadening the spectrum by a non-linear optical effect in the non-linear medium.

  The SC light source unit 11 outputs the generated near infrared light (SC light) to the optical fiber 13. Near-infrared light is guided to the irradiation unit 12 by the optical fiber 13, and the near-infrared light L <b> 1 is irradiated from the irradiation unit 12 to the region 3. Thus, by guiding near-infrared light with the optical fiber 13, the SC light source unit 11 can be separated from the belt conveyor 2 and disposed at an arbitrary position. Thereby, it can prevent that SC light source part 11 receives the influence of the vibration by the apparatus arrange | positioned near the belt conveyor 2 or a production line. Further, the SC light source unit 11 can be arranged at a place where maintenance is easy.

  The near-infrared light L1 output from the light source 10 is diffusely reflected by the inspection object placed on the region 3 and enters one of the detection devices 21 to 24 as diffusely reflected light L2. Since the detection devices 21 to 24 have the same configuration, the configuration of the detection device 21 will be described as a representative.

  The detection device 21 includes a slit 21a, a spectroscope 21b, and a light receiving element unit 21c. The diffusely reflected light L2 that has passed through the slit 21a enters the spectroscope 21b. The spectroscope 21b splits the diffusely reflected light L2 in a direction perpendicular to the longitudinal direction of the slit 21a. The split light is received by the light receiving element unit 21c.

  The light receiving element unit 21c includes a plurality of light receiving elements arranged two-dimensionally, and each light receiving element receives light. Thereby, the light receiving element unit 21c receives light of each wavelength of the diffusely reflected light L2 reflected at each position along the width direction on the belt conveyor 2. Each light receiving element outputs a signal corresponding to the intensity of received light as two-dimensional information including position information and wavelength information. This signal is output to the signal cable 25 that connects the detection device 21 and the inspection device 30.

  The detection devices 21 to 24 are arranged so that the longitudinal direction of the slits 21 a is parallel to the width direction perpendicular to the traveling direction 2 a of the belt conveyor 2. The detection devices 21 to 24 are arranged so as to be shifted from each other in the direction 2c so that the visual field areas 21S to 24S are shifted in the direction 2c perpendicular to the traveling direction 2a of the belt conveyor 2.

  The visual field areas 21S to 24S of the detection devices 21 to 24 are areas included in the area 3 of the placement surface 2b, and the diffusely reflected light L2 reflected and passed through the slits 21a to 24a forms an image on the light receiving unit 21c. It is an area. The visual field regions 21S to 24S have a length in the longitudinal direction smaller than the length in the direction 2c of the placement surface 2b. The visual field region 22S is displaced in the direction 2c in a range smaller than the longitudinal dimension of the visual field region 21S. Similarly, the visual field region 23S is displaced in the direction 2c from the visual field region 22S, and the visual field region 24S is displaced in the direction 2c from the visual field region 23S. ing. Thereby, the visual field areas 21S to 24S cover the entire area of the placement surface 2b from one end to the other end. Moreover, since the detection devices 21 to 24 are larger in size than the visual field areas 21S to 24S, the detection devices 21 to 24 are displaced in the traveling direction 2a so that the main bodies of the detection devices 21 to 24 do not physically collide with each other. .

  Signals output from the detection devices 21 to 24 are output to the inspection device 30 via the signal cables 25, respectively. Then, the inspection device 30 analyzes the signal output from the corresponding detection device, and inspects the inspection object placed in the corresponding visual field region.

  The inspection device 30 obtains the spectrum of the diffuse reflected light L2 from the input signal, and performs an inspection based on the obtained spectrum. When detecting a foreign substance contained in an inspection object, the inspection is performed according to the following principle. The foreign matter has an absorption band in the near infrared light in the wavelength range of the near infrared light output from the light source 10. Therefore, the foreign matter is detected by detecting a specific absorption peak derived from the foreign matter in the spectrum of the diffuse reflected light L2 diffusely reflected on the inspection object.

  When measuring the amount of moisture and sugar contained in the inspection object, the inspection is performed according to the following principle. For example, since sugars have absorption peaks near wavelengths of 1500 nm and 2100 nm, when sugar is contained in the test object, irradiate near infrared light in the range of at least 100 nm before and after these wavelengths, and diffuse reflection By analyzing the spectrum of the light L2, it is possible to detect a peak derived from sugar in the food. From the position and intensity of the peak derived from the sugar, the type and content of the sugar can be obtained, and the abnormality of the test object can be detected or the quality can be evaluated.

  In addition, for example, water contained in the inspection object has a water absorption peak near the wavelength of 1450 nm, so that the inspection object is irradiated with near-infrared light in the range of at least 100 nm before and after the wavelength of 1450 nm, and diffused reflected light is emitted. The moisture content can be calculated from the height of the peak near the wavelength of 1450 nm included in the measurement.

  Since the inspection apparatus 30 performs inspection based on such a principle, the mounting surface 2b is preferably made of a material that transmits near-infrared light emitted from the light source 10. Further, the near-infrared light L1 is placed from the light source 10 at such an angle that the detection devices 21 to 24 enter the diffuse reflection light L2 that travels along the optical path having an angle of 45 ° or more with respect to the optical path of the regular reflection light. It is preferable to irradiate the surface 2b. Thereby, it is possible to prevent the regular reflection light from entering the detection devices 21 to 24 and appropriately enter the diffuse reflection light L2.

  In the food inspection system 1 described above, the inspection object placed on the placement surface 2b along the production line is transported along the production line by moving the belt conveyor 2. At the same time as the inspection object advances in the traveling direction 2a, the inspection object placed in the visual field regions 21S to 24S of the detection devices 21 to 24 is inspected. The visual field areas 21S to 24S are shifted from each other along the direction 2c perpendicular to the traveling direction 2a, and cover the placement surface 2b from one end to the other end. Thereby, even when each of the visual field areas 21S to 24S of one detection device 21 to 24S is small with respect to the length in the direction 2c perpendicular to the traveling direction 2a of the production line in the area where the inspection object is placed. The visual field region as the food inspection system 1 can be enlarged so as to cover from one end to the other end of the mounting surface 2b. Accordingly, it is possible to efficiently inspect all inspection objects placed on the placement surface 2b.

(Second Embodiment)
A second embodiment of the food inspection system according to the present invention will be described with reference to FIG. FIG. 3 is a diagram illustrating a detection device in the food inspection system according to the second embodiment. The food inspection system according to the second embodiment is different from the food inspection system 1 according to the first embodiment in that the food inspection system includes the detection device 21 and does not include the detection devices 22 to 24.

  The food inspection system according to the present embodiment includes moving means (not shown) that moves the detection device 21 in a direction 2c perpendicular to the traveling direction 2a of the belt conveyor 2. Thereby, the visual field area | region 21S of the detection apparatus 21 can be moved along the direction 2c from one end of the mounting surface 2b to the other end.

  In this embodiment, the belt conveyor 2 is intermittently operated. While the belt conveyor 2 is stopped, the moving means moves the detection device 21 to move the visual field region 21S of the detection device 21 from one end of the placement surface 2b to the other end. As a result, the inspection object placed in the region from one end to the other end of the mounting surface 2b having the longitudinal width of the visual field region 21S is inspected. Subsequently, the belt conveyor 2 is advanced in the traveling direction 2a and stopped by the width of the visual field region 21S in the longitudinal direction. Subsequently, similarly, the moving means moves the detection device 21, and the inspection object placed in the region from one end to the other end of the placement surface 2b having the longitudinal width of the visual field region 21S. Inspect things.

  Therefore, in the food inspection system according to the present embodiment, the visual field region 21S of one detection device 21 with respect to the length in the direction 2c perpendicular to the traveling direction 2a of the production line in the region where the inspection object is placed. Is small, the visual field region 21S can be moved in the direction 2c perpendicular to the traveling direction 2a of the belt conveyor 2. Thereby, all the test objects mounted on the mounting surface 2b can be inspected efficiently.

(Third embodiment)
A third embodiment of the food inspection system according to the present invention will be described with reference to FIG. FIG. 4 is a diagram illustrating a detection device in the food inspection system according to the third embodiment. The food inspection system according to the third embodiment is the food inspection according to the second embodiment in that the visual field region 21S of the detection device 21 is moved along the direction 2c from one end of the placement surface 2b to the other end. Although it is similar to the system, the configuration for moving the visual field region 21S is different.

  As shown in FIG. 4, the detection device 21 is fixed obliquely above and displaced in the direction 2 c from the placement surface 2 b. The food inspection system according to the present embodiment includes a reflecting mirror 41, moving means (not shown), and lenses 42 and 43. The reflecting mirror 41 is disposed so as to face the mounting surface 2b at an angle of 45 °, and reflects the diffuse reflected light L2 to the detection device 21. The lens 42 is located between the mounting surface 2b and the reflecting mirror 41, and makes the diffuse reflected light L2 parallel light. The lens 43 is located between the reflecting mirror 41 and the detecting device 21 and condenses the diffuse reflected light L2 reflected toward the detecting device 21 by the reflecting mirror 41. The condensed diffuse reflection light L2 is incident on the detection device 21.

  The moving means translates the reflecting mirror 41 and the lens 42 in the direction 2c perpendicular to the traveling direction 2a of the belt conveyor 2, thereby moving the visual field region 21S of the detection device 21 in the direction 2c perpendicular to the traveling direction 2a of the production line. Move.

  Therefore, in the food inspection system according to the present embodiment, the visual field region 21S of one detection device 21 with respect to the length in the direction 2c perpendicular to the traveling direction 2a of the production line in the region where the inspection object is placed. Is small, the visual field region 21S can be moved in the direction 2c perpendicular to the traveling direction 2a of the belt conveyor 2. Thereby, all the test objects mounted on the mounting surface 2b can be inspected efficiently.

(Fourth embodiment)
A fourth embodiment of the food inspection system according to the present invention will be described with reference to FIG. FIG. 5 is a diagram illustrating a detection device in the food inspection system according to the fourth embodiment. The food inspection system according to the fourth embodiment is the food inspection according to the second embodiment in that the visual field region 21S of the detection device 21 is moved along the direction 2c from one end of the placement surface 2b to the other end. Although it is similar to the system, the configuration for moving the visual field region 21S is different.

  As shown in FIG. 5, the detection device 21 is fixed obliquely above and displaced in the direction 2 c from the placement surface 2 b. The food inspection system according to the present embodiment includes a reflecting mirror 44, a moving means (not shown), and lenses 43 and 45. The reflecting mirror 44 is disposed to face the placement surface 2 b and reflects the diffuse reflected light L <b> 2 to the detection device 21. The lens 45 is located between the mounting surface 2b and the reflecting mirror 41, and makes the diffuse reflected light L2 parallel light. The lens 43 is located between the reflecting mirror 41 and the detecting device 21 and condenses the diffuse reflected light L2 reflected toward the detecting device 21 by the reflecting mirror 41. The condensed diffuse reflection light L2 is incident on the detection device 21.

  The moving means rotates the reflecting mirror 44 around an axis parallel to the traveling direction 2a of the belt conveyor 2 to change the angle between the mirror surface of the reflecting mirror 44 and the mounting surface 2b, thereby changing the visual field region 21S of the detecting device 21. It is moved in a direction 2c perpendicular to the traveling direction 2a of the production line. In this way, the reflecting mirror 44 is caused to function as a one-dimensional scanning mirror. In this case, a collimator lens (Fθ lens) is used as the lens 45 so as to correspond to the reflecting mirror 44.

  In such a food inspection system according to the present embodiment, the visual field region of one detection device 21 with respect to the length in the direction 2c perpendicular to the traveling direction 2a of the production line in the region where the inspection object is placed. Even when 21S is small, the visual field region 21S can be moved in the direction 2c perpendicular to the traveling direction 2a of the belt conveyor 2. Thereby, all the test objects mounted on the mounting surface 2b can be inspected efficiently.

  The present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above embodiment, the SC light source is used as the light source unit 11, but a halogen lamp or the like can be used instead. A laser light source that outputs near-infrared light in a specific wavelength band can also be used. In the second to fourth embodiments, one detection device 21 is used, but a plurality of detection devices may be used. The light guiding between the lenses 42 and 43 may be performed by an image fiber instead of the reflecting mirror 41.

It is a figure which shows the structure of the food inspection system which concerns on 1st Embodiment. It is a figure which shows arrangement | positioning of the detection apparatus in the food inspection system which concerns on 1st Embodiment. It is a figure which shows the structure of the food inspection system which concerns on 2nd Embodiment. It is a figure which shows the structure of the food inspection system which concerns on 3rd Embodiment. It is a figure which shows the structure of the food inspection system which concerns on 4th Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Food inspection system, 2a ... Traveling direction, 2b ... Mounting surface, 2c ... Direction, 10 ... Light source, 21-24 ... Detection apparatus, 21S-24S ... Visual field area, 30 ... Inspection apparatus, 41, 44 ... Reflector , L1: near infrared light, L2: diffuse reflection light.

Claims (5)

A food inspection system for inspecting an inspection object made of food placed on a placement surface along a production line and transported along the production line,
A light source that outputs near-infrared light;
A spectroscope for spectroscopically diffusing the diffusely reflected light diffused and reflected by the inspection object in the visual field region out of the near-infrared light output from the light source, each having a visual field region on the mounting surface, and A plurality of detection devices each including a plurality of light receiving elements that receive light of each wavelength dispersed by the spectroscope and output a signal corresponding to the intensity of the received light;
An inspection apparatus that inspects the inspection object based on a spectrum of the diffusely reflected light obtained from the signals output from the plurality of detection apparatuses;
With
The food inspection system, wherein the plurality of detection devices are arranged such that each of the visual field regions is shifted in a direction perpendicular to a traveling direction of the production line.   In the plurality of detection devices, an incident surface on which the diffusely reflected light is incident is disposed so as to face the mounting surface, and is shifted from each other in a traveling direction of the manufacturing line and a direction perpendicular to the traveling direction. The food inspection system according to claim 1. A food inspection system for inspecting an inspection object made of food placed on a placement surface along a production line and transported along the production line,
A light source that outputs near-infrared light;
A spectroscope that has a visual field region on the mounting surface, and that diffuses and reflects diffusely reflected light diffused and reflected by the inspection object in the visual field region out of the near-infrared light output from the light source; A plurality of light receiving elements that receive the light of each wavelength dispersed by the detector and output a signal corresponding to the intensity of the received light, and the incident surface on which the diffusely reflected light is incident is the mounting surface A detection device arranged oppositely,
An inspection apparatus that inspects the inspection object based on a spectrum of the diffusely reflected light obtained from the signal output from the detection apparatus;
Moving means for moving the visual field region in a direction perpendicular to the traveling direction of the manufacturing line by moving the detection device in a direction perpendicular to the traveling direction of the manufacturing line;
A food inspection system comprising: A food inspection system for inspecting an inspection object made of food placed on a placement surface along a production line and transported along the production line,
A light source that outputs near-infrared light;
A spectroscope that has a visual field region on the mounting surface, and that diffuses and reflects diffusely reflected light diffused and reflected by the inspection object in the visual field region out of the near-infrared light output from the light source; A plurality of light receiving elements that receive light of each wavelength dispersed by the detector and output a signal corresponding to the intensity of the received light;
An inspection apparatus that inspects the inspection object based on a spectrum of the diffusely reflected light obtained from the signal output from the detection apparatus;
A reflecting mirror that is disposed to face the mounting surface and reflects the diffusely reflected light to the detection device;
Moving means for moving the visual field region in a direction perpendicular to the traveling direction of the manufacturing line by moving the reflecting mirror in a direction perpendicular to the traveling direction of the manufacturing line;
A food inspection system comprising: A food inspection system for inspecting an inspection object made of food placed on a placement surface along a production line and transported along the production line,
A light source that outputs near-infrared light;
A spectroscope that has a visual field region on the placement surface and that diffuses and reflects diffusely reflected light diffused and reflected by the inspection object in the visual field region of the near-infrared light output from the light source; A plurality of light receiving elements that receive light of each wavelength dispersed by the detector and output a signal corresponding to the intensity of the received light;
An inspection apparatus that inspects the inspection object based on a spectrum of the diffusely reflected light obtained from the signal output from the detection apparatus;
A reflecting mirror for reflecting the diffusely reflected light to the detection device;
Moving means for moving the visual field region in a direction perpendicular to the traveling direction of the manufacturing line by changing the angle of the reflecting surface of the reflecting mirror with respect to the mounting surface with a line parallel to the traveling direction of the manufacturing line as an axis When,
A food inspection system comprising:

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