CN212963684U

CN212963684U - Portable metering device

Info

Publication number: CN212963684U
Application number: CN202022134622.7U
Authority: CN
Inventors: 刘辉; 张帆; 顾加雨
Original assignee: Jiangsu Institute Of Econometrics (jiangsu Energy Measurement Data Center)
Current assignee: Jiangsu Institute Of Econometrics (jiangsu Energy Measurement Data Center)
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-04-13
Anticipated expiration: 2030-09-25

Abstract

A portable metering device comprises a work box, a voltage-stabilizing direct-current power supply, a position adjusting mechanism, an integrating sphere and a halogen lamp; the voltage-stabilizing direct-current power supply, the position adjusting mechanism and the integrating sphere are all arranged in the working box; the integrating sphere is fixed at the upper end of the position adjusting mechanism; a support frame is arranged in the work box, and the position adjusting mechanism is fixed on the support frame and used for adjusting the horizontal position, the height position and the angle position of the integrating sphere; a halogen lamp is arranged on the integrating sphere and serves as a light source, and the voltage-stabilizing direct-current power supply is electrically connected with the halogen lamp; an iris diaphragm is arranged in the integrating sphere; the integrating sphere is also provided with a brightness meter; the integrating sphere is provided with a flange plate on the light outlet, a circular hole in the center of the flange plate is aligned with the light outlet, and the flange plate is provided with a cross centering device for aligning with a brightness detector of a license plate lamp brightness test system. The device is convenient for carrying out field measurement on the license plate lamp brightness test system.

Description

Portable metering device

Technical Field

The utility model belongs to license plate lamp luminance test system measurement field, especially a portable metering device.

Background

The license plate lamp brightness test system is mainly used for measuring a motor vehicle lamp product (license plate lamp) and a motorcycle lamp product (license plate lamp), and the parameter is an important parameter for judging whether the license plate lamp is qualified or not. The brightness test of license plate lamp is to regulate the light beam projected onto each detection point to the brightness detector with vertical incidence in fixed point and incidence angle less than 5 deg. The brightness value is collected and calculated by a luminosity detector, and the brightness uniformity is calculated according to a formula.

GB17510-2008 "light distribution performance of motorcycle light signal device" and GB 18408-2015 "light distribution performance of rear license plate illuminating device of automobile and trailer" are regulated: the brightness meter should be the first-class brightness meter specified in the national certification regulations. The brightness measurement should be measured on a colorless diffuse reflective surface "with known diffuse reflectance, and the measured angle value needs to be corrected according to the diffuse reflectance of 1. The colorless diffuse reflection surface has the same size as the license plate or exceeds the size of a detection point area, and the center of the colorless diffuse reflection surface is placed at the center of the measurement point. The colorless diffuse reflection surface should be placed at the normal position of license plate installation and at the position 2mm in front of the fixing plate; the brightness measurement should be performed on a colorless diffuse reflection surface with the deviation of the incident angle of the measurement point in each direction being less than or equal to 5 deg.

In the traditional method for metering the license plate lamp brightness test system, the brightness test system needs to be disassembled and sent to a metering laboratory, as shown in fig. 2, the lighting observation condition of the measuring device is 0/45, the light source is vertically incident, the detector receives light at an azimuth angle of 45 degrees, and the light is actually influenced by the lambertian characteristic of the standard whiteboard, and if the angle of incidence is 90 degrees and the observation angle is 45 degrees, the brightness measurement error is larger. In addition, the existing calibration device fixes the standard lamp on a long light rail, the equipment is complex and heavy, the measurement method combining the luminous intensity standard lamp, the light rail and the standard white board is adopted for testing, the direction and the distance are not easy to control, and the change of measurement data is large. And the method is only suitable for instruments which are convenient to disassemble and is limited by the luminous intensity of a standard lamp and the length of an optical track.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable metering device is convenient for carry out the field measurement to license plate lamp brightness test system.

Realize the utility model discloses the technical solution of purpose does:

a portable metering device comprises a work box, a voltage-stabilizing direct-current power supply, a position adjusting mechanism, an integrating sphere and a halogen lamp;

the voltage-stabilizing direct-current power supply, the position adjusting mechanism and the integrating sphere are all arranged in the working box; the integrating sphere is fixed at the upper end of the position adjusting mechanism; a support frame is arranged in the work box, and the position adjusting mechanism is fixed on the support frame and used for adjusting the horizontal position, the height position and the angle position of the integrating sphere; a halogen lamp is arranged on the integrating sphere and serves as a light source, and the voltage-stabilizing direct-current power supply is electrically connected with the halogen lamp; an iris diaphragm is arranged in the integrating sphere; the integrating sphere is also provided with a brightness meter; the integrating sphere is provided with a flange plate on the light outlet, a circular hole in the center of the flange plate is aligned with the light outlet, and the flange plate is provided with a cross centering device for aligning with a brightness detector of a license plate lamp brightness test system.

Compared with the prior art, the utility model, it is showing the advantage and is:

(1) the device can respectively carry out linear displacement and angular displacement adjustment in the vertical direction and the horizontal direction, so that the precision of coaxial installation and adjustment of the detected detector and the standard source is improved; and a cross centering device is arranged to enable the light beam emitted by the standard source to be aligned with the brightness detector.

(2) The diffuse reflection source device is combined with the cross centering device and the flange plate, so that measurement errors caused by the Lambert characteristic of a standard white board in an original device, the azimuth angle adjustment in 0/45 lighting observation conditions and the like are eliminated.

Drawings

Fig. 1 is a schematic view of the overall structure of the metering device of the present invention.

Fig. 2 is a schematic diagram of a conventional laboratory light rail testing apparatus.

Fig. 3 is a schematic structural view of the position adjustment mechanism.

Fig. 4 is a schematic structural view of a cross centering device.

Fig. 5 is a rear view of the mounting plate.

FIG. 6 is a side view of an integrating sphere light source.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

With reference to fig. 1, the portable metering device of the present invention includes a working box 1, a regulated dc power supply 2, a position adjusting mechanism, an integrating sphere 4, and a halogen lamp 5;

the voltage-stabilizing direct-current power supply 2, the position adjusting mechanism and the integrating sphere 4 are all arranged in the working box 1; the integrating sphere 4 is fixed at the upper end of the position adjusting mechanism; the voltage-stabilizing direct-current power supply 2 is arranged in the working box 1, is electrically connected with the halogen lamp 5 and is used for providing power and adjusting brightness, a support frame 15 is arranged in the working box 1, and the position adjusting mechanism is fixed on the support frame 15 and is used for adjusting the horizontal position, the height position and the angle position of the integrating sphere; the integrating sphere 4 is provided with a halogen lamp 5 as a light source, the reflectivity of the coating of the integrating sphere 4 is better than 96%, and the color temperature of the halogen lamp 5 is continuously adjustable from 2000-2856K. The voltage-stabilizing direct-current power supply 2 is electrically connected with the halogen lamp 5, and the brightness of the light source is adjusted by adjusting the current of the voltage-stabilizing direct-current power supply. An iris diaphragm is arranged in the integrating sphere 4 and used for adjusting the brightness of a light outlet of the integrating sphere; the integrating sphere 4 is also provided with a brightness meter 6 for detecting the brightness in the integrating sphere 4; the light outlet of the integrating sphere 4 is provided with a flange, a central circular hole of the flange is aligned with the light outlet, the flange is provided with a cross centering device 10 for aligning with a brightness detector of a license lamp brightness test system, and when the integrating sphere is used, the position of the integrating sphere is adjusted by the adjusting position adjusting mechanism, so that the cross centering device 10 is aligned with the brightness detector, and light beams of the light outlet of the integrating sphere 4 are vertically incident to the center of the brightness detector.

As an embodiment, referring to fig. 4-6, the cross centering device 10 includes a mounting plate 11, a cross laser 12; the cross laser instrument 12 is fixed at the center of the mounting disc 11, and the center of a cross laser line emitted by the cross laser instrument 12 is aligned with the center of the circle of the mounting disc 11; a cylinder is arranged on the front surface of the mounting disc 11, and a central hole of the cylinder is used for mounting a cross laser 12; the upper reverse side of the mounting disc 11 is provided with a positioning annular boss 11-1, and four strong magnets 13 serving as adsorption units are arranged around the annular boss 11-1; the front end of the integrating sphere 4 is provided with a flange 14, and the center of the flange 14 is provided with a positioning hole; the outer diameter of the annular boss 11-1 is the same as the diameter of the positioning hole, the annular boss 11-1 can be inserted into the central positioning hole of the flange 14, the annular boss 11-1 is matched with the positioning hole, the installation and the positioning of the installation disc 11 and the flange 14 can be realized, and the center of the cross laser 12 is aligned with the center of the light outlet of the integrating sphere 4. When the magnetic fixing device is used, firstly, the annular boss 11-1 on the mounting disc 11 is in positioning fit with the central positioning hole on the flange 14, so that the center of the mounting disc 11 is aligned with the center of the flange 14, and the mounting disc 11 and the flange 14 are fixed by the magnet 13 in a magnetic force manner; and (3) opening the cross laser instrument 12, and adjusting the position adjusting mechanism to enable the center of a cross laser line of the cross laser instrument 12 to be aligned with the center of the target brightness detector. After the mounting disc 11 is used, the mounting disc can be detached from the flange plate 14 conveniently and quickly through the magnet 13. In order to ensure the adsorption force, the magnetic adsorption device is distributed around the center of the light outlet symmetrically, and the magnet 13 is designed to be used as an adsorption unit, so that the adsorption force is firm.

With reference to fig. 3, the position adjustment mechanism includes a lifting table 7, a translation table 8, and a rotation table 9; the lifting platform 7 is used for adjusting the vertical moving position of the integrating sphere 4. The translation stage 8 is used to adjust the horizontal movement position of the integrating sphere 4. The rotating platform 9 is used for adjusting the rotating angle of the integrating sphere 4 to control the emergent light angle.

The lifting platform 7 comprises a lower platform 71, a first driving motor 72, a first screw rod 73, a first guide rail 74, a first screw slider 75, an upper platform 76, an X-frame link mechanism 77 and a slider 78;

the upper platform 76 and the lower platform 71 are provided with four groups of X-frame link mechanisms 77; wherein, two X-frame link mechanisms 77 are matched in pairs and respectively arranged at the left side and the right side in front and at the back; the outer sides of the upper ends of the four groups of X-frame link mechanisms 77 are hinged with the upper platform 76, the inner sides of the four groups of X-frame link mechanisms 77 can slide relative to the upper platform 76 through the sliding blocks 78, the outer sides of the lower ends of the four groups of X-frame link mechanisms 77 are hinged with the lower platform 71, and the inner sides of the four groups of X-frame link mechanisms 77 can slide relative to the lower platform 71 through the. The first driving motor 72 is connected with the first lead screw 73 through a coupler, the first nut slider 75 is in threaded fit with the first lead screw 73, and meanwhile, the first nut slider 75 is in sliding fit with the two first guide rails 74; the two first guide rails 74 are respectively positioned at the front side and the rear side of the first screw rod 73, the guide direction is parallel to the axial direction of the first screw rod 73, one side of the first guide rail 74 is hinged with an X-frame link mechanism 77, and the first driving motor 72 is fixed between the two first guide rails 74 through a motor base; the left side and the right side of the first nut slider 75 are hinged with a group of X-frame link mechanisms 77, the first driving motor 72 drives the first screw rod 73 to rotate, the X-frame link mechanisms 77 are driven to stretch through the first nut slider 75, and the X-frame link mechanisms 77 drive the upper platform 76 to move up and down.

The translation table 8 comprises a second driving motor 81, a second screw 82, a second nut sliding block 83, a fixed seat 84 and a second guide rail 85;

the second driving motor 81 is fixed on the fixed seat 84 through a motor base; the fixed seat 84 is fixed on the upper platform 76; the second driving motor 81 is connected with a second lead screw 82 through a coupler, and the second lead screw 82 is rotatably supported on a fixed seat 84; the second screw slider 83 is in threaded fit with the second lead screw 82 and is in sliding fit with the second guide rail 85.

The rotating platform 9 comprises a rotating motor 91, a mounting shell 92, a worm and gear mechanism, a rotating shaft 93 and a rotating platform 94; the rotating motor 91 is fixed outside the mounting shell, an output shaft of the rotating motor 91 is connected with the worm gear mechanism, and the rotating shaft 93 is supported in the mounting shell 92 through a bearing; be equipped with the ring gear in the middle of the pivot 93, worm gear mechanism and ring gear meshing, rotary platform 94 is fixed in pivot 93 upper end, rotating electrical machines 91 drive worm gear mechanism, and worm gear mechanism passes through ring gear drive pivot 93 and rotates, and pivot 93 drives rotary platform 94 and rotates, and rotary platform 94 drives the integrating sphere 4 rotation of fixing on rotary platform 94 through support 16.

The side end of the integrating sphere 4 is also provided with a bubble, when in use, the light source of the integrating sphere 4 is arranged on the bracket 16 and fastened, and the light source of the integrating sphere 4 is adjusted to be positioned at the central position of the bubble, so that the light emitting surface of the light source of the integrating sphere 4 is ensured to be vertical to waterFlat (even if the emitted beam remains horizontal); and (3) opening a cross centering device 10 to enable a cross projection line emitted by the integrating sphere 4 to be mapped to a receiving port of the brightness test system, and adjusting a rotating platform 9, a translation platform 8 and a lifting platform 7 of a light source of the integrating sphere 4 to adjust the height, the left position and the right position of the light source until the center of a receiving opening of the brightness test system is coincided with the cross center of the projection line, namely the plane center of the light source of the integrating sphere is horizontally coaxial with the central point of a light sensing surface of the detector. The integrating sphere light source is ignited and preheated. A diaphragm is placed between the detector and the light source to prevent stray light from entering the brightness detector. Fixing the position of a brightness detector, shading and adjusting a zero point, removing shading, adjusting the color temperature of an output light source to 2000-2856K by adjusting and controlling the combination of a light source, a fixed diaphragm, an iris diaphragm and a baffle in an integrating sphere, and enabling the light brightness range to reach (0.1-50000) cd/m²。

Claims

1. A portable metering device is characterized by comprising a work box (1), a voltage-stabilizing direct-current power supply (2), a position adjusting mechanism, an integrating sphere (4) and a halogen lamp (5);

the voltage-stabilizing direct-current power supply (2), the position adjusting mechanism and the integrating sphere (4) are all arranged in the working box (1); the integrating sphere (4) is fixed at the upper end of the position adjusting mechanism; a support frame (15) is arranged in the working box (1), and the position adjusting mechanism is fixed on the support frame (15) and used for adjusting the horizontal position, the height position and the angle position of the integrating sphere; a halogen lamp (5) is arranged on the integrating sphere (4) and serves as a light source, and the halogen lamp (5) of the voltage-stabilizing direct-current power supply (2) is electrically connected; an iris diaphragm is arranged in the integrating sphere (4); a brightness meter (6) is also arranged on the integrating sphere (4); the integrating sphere (4) is provided with a flange (14) on a light outlet, a central circular hole of the flange (14) is aligned with the light outlet, and the flange (14) is provided with a cross centering device (10) for aligning with a brightness detector of a license lamp brightness test system.

2. The portable metering device of claim 1, wherein the cross centering device (10) comprises a mounting plate (11), a cross laser (12); the cross laser instrument (12) is fixed at the center of the mounting disc (11), and the center of a cross laser line emitted by the cross laser instrument (12) is aligned with the circle center of the mounting disc (11); the upper reverse side of the mounting disc (11) is provided with a positioning annular boss (11-1), and a plurality of adsorption units are arranged around the annular boss (11-1); a positioning hole is formed in the center of the flange plate (14); the annular boss (11-1) is matched with the positioning hole, so that the mounting disc (11) and the flange plate (14) are mounted and positioned.

3. The portable metering device of claim 2, wherein the adsorption unit employs a magnet.

4. A portable metering device according to claim 1, characterized in that the position adjusting mechanism comprises a lifting table (7), a translation table (8), a rotation table (9); the lifting table (7) is used for adjusting the vertical moving position of the integrating sphere (4); the translation stage (8) is used for adjusting the horizontal movement position of the integrating sphere (4); the rotating platform (9) is used for adjusting the rotating angle of the integrating sphere (4) so as to control the emergent light angle.

5. The portable metering device of claim 4, wherein the lifting table (7) comprises a lower platform (71), a first drive motor (72), a first lead screw (73), a first guide rail (74), a first nut slider (75), an upper platform (76), an X-frame linkage (77);

the upper platform (76) and the lower platform (71) are provided with four groups of X-frame link mechanisms (77); the first driving motor (72) drives the first screw rod (73) to rotate, the first screw nut sliding block (75) is driven to slide along the first guide rail (74), the X-frame connecting rod mechanism (77) is driven to stretch through the first screw nut sliding block (75), and the X-frame connecting rod mechanism (77) drives the upper platform (76) to move up and down.

6. The portable metering device of claim 4, wherein the translation stage (8) comprises a second drive motor (81), a second lead screw (82), a second nut slider (83), a fixed seat (84), a second guide rail (85);

the second driving motor (81) is fixed on the fixed seat (84) through a motor base; the fixed seat (84) is fixed on the lifting platform (7); the second driving motor (81) is connected with a second screw rod (82) through a coupler, and the second screw rod (82) is rotatably supported on a fixed seat (84); the second screw sliding block (83) is in threaded fit with the second screw rod (82) and is in sliding fit with the second guide rail (85).

7. Portable metering device according to claim 4, characterized in that the rotary table (9) comprises a rotary motor (91), a mounting housing (92), a worm gear mechanism, a spindle (93), a rotary platform (94); the rotating motor (91) is fixed outside the mounting shell, an output shaft of the rotating motor (91) is connected with the worm gear mechanism, and the rotating shaft (93) is supported in the mounting shell (92) through a bearing; the middle of the rotating shaft (93) is provided with a gear ring, the worm and gear mechanism is meshed with the gear ring, and the rotating platform (94) is fixed at the upper end of the rotating shaft (93).

8. A portable metering device according to claim 1, wherein the integrating sphere (4) is secured to the position adjustment mechanism by a bracket (16).

9. The portable metering device of claim 8, wherein the integrating sphere (4) is further provided with a bubble at a side end thereof.