CN204117355U - Test tool - Google Patents
Test tool Download PDFInfo
- Publication number
- CN204117355U CN204117355U CN201420481184.3U CN201420481184U CN204117355U CN 204117355 U CN204117355 U CN 204117355U CN 201420481184 U CN201420481184 U CN 201420481184U CN 204117355 U CN204117355 U CN 204117355U
- Authority
- CN
- China
- Prior art keywords
- current
- display
- emitting diode
- infrared signal
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 230000008054 signal transmission Effects 0.000 abstract 1
- 238000013522 software testing Methods 0.000 abstract 1
- 238000010998 test method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000004904 shortening Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model provides a test fixture for the performance of receiving head on the test display, including the remote controller, the transmitting circuit of remote controller includes infrared emitting diode and current-limiting resistor, and current-limiting resistor and infrared emitting diode establish ties, and current-limiting resistor is adjustable resistance, and when current-limiting resistor's resistance increased, infrared emitting diode sent infrared signal's transmission distance reduced. The utility model discloses a test fixture, the receptivity of receiving head on the test display that can closely has just so reduced external environment to infrared signal's interference, has avoided the problem of signal unstability or the display can not receive the signal in the test procedure, has improved the efficiency of software testing of receiving head on the display, can effectually select bad product.
Description
Technical field
The utility model relates to technical field of measurement and test, particularly relates to a kind of test fixture.
Background technology
General, whether the receptivity that the mode that the test of display adopts telepilot remote (horizontal range is about 10 meters) to launch infrared signal tests Receiver on display is normal, but the infrared signal of launching due to telepilot is larger by the degree of disturbance of external environment, easily occur in test process that jitter, display can not receive the abnormal conditions such as signal, larger on the impact of testing efficiency.
Utility model content
In view of the present situation of prior art, the purpose of this utility model is to provide a kind of test fixture, avoids the problem that jitter that telepilot in test process launches or display do not receive signal, improves the testing efficiency of Receiver on display.
To achieve these goals, the utility model adopts following technical scheme:
A kind of test fixture, for testing the performance of Receiver on display,
Comprise telepilot, the radiating circuit of described telepilot comprises infrarede emitting diode and current-limiting resistance, described current-limiting resistance and the series connection of described infrarede emitting diode, and described current-limiting resistance is adjustable resistance, when the resistance of described current-limiting resistance increases, the transmitting range of the infrared signal that described infrarede emitting diode sends reduces.
Wherein in an embodiment, when the resistance of described current-limiting resistance is 5.1K Ω ± 0.5K Ω, the transmitting range of described infrared signal is 18cm ± 2cm.
Wherein in an embodiment, described telepilot also comprises shell, and described infrarede emitting diode and described current-limiting resistance are all arranged in described shell.
Wherein in an embodiment, described shell is provided with the emitter window corresponding with described infrarede emitting diode, and described infrarede emitting diode embeds in described emitter window.
Wherein in an embodiment, also comprise support, described support is fixing on the housing.
Wherein in an embodiment, described support is batten, and described batten is for determining the transmitting range of the infrared signal that described infrarede emitting diode sends.
Wherein in an embodiment, described telepilot also comprises key circuit and display circuit.
The beneficial effects of the utility model are:
Test fixture of the present utility model, by the current-limiting resistance on telepilot is set to adjustable resistance, then the resistance by tuning up current-limiting resistance gradually adjusts the transmitting range of infrared signal, the transmitting range of infrared signal is reduced gradually, can the receptivity of Receiver on in-plant test display, this reduces the interference of external environment to infrared signal, avoid jitter or display in test process and do not receive the problem of signal, improve the testing efficiency of Receiver on display, can effectively filter out bad product.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of test fixture one embodiment of the present utility model.
Embodiment
In order to make the technical solution of the utility model clearly, below in conjunction with accompanying drawing, test fixture of the present utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, test fixture of the present utility model, for testing the performance of Receiver on display, comprises telepilot.Wherein, the radiating circuit of telepilot comprises infrarede emitting diode and current-limiting resistance, current-limiting resistance and infrarede emitting diode series connection, and current-limiting resistance is adjustable resistance, when the resistance of current-limiting resistance increases, the transmitting range of the infrared signal that infrarede emitting diode sends reduces.
When the resistance of current-limiting resistance increases, the electric current flowing through infrarede emitting diode reduces, the photoelectron quantity that infrarede emitting diode is launched reduces, now, by shortening the distance between telepilot and display, the Receiver on display can be made to receive the infrared signal of telepilot transmitting, and then produce photocurrent, this photocurrent controls display and normally works after the amplifying circuit on telepilot amplifies.If still adopt the method for telepilot distance transmission infrared signal to test, the photoelectron quantity of launching due to infrarede emitting diode reduces, the transmitting range of the infrared signal that infrarede emitting diode is sent reduces, then the Receiver on display just there will be the phenomenon not receiving infrared signal or receive insensitive the quality problems of Receiver (in the non-display).
By the current-limiting resistance on telepilot is set to adjustable resistance, then the resistance by tuning up current-limiting resistance gradually adjusts the transmitting range of infrared signal, the transmitting range of infrared signal is reduced gradually, can the receptivity of Receiver on in-plant test display, this reduces the interference of external environment to infrared signal, avoid jitter or display in test process and do not receive the problem of signal, improve the testing efficiency of Receiver on display, can effectively filter out bad product.
As a kind of embodiment, when the resistance of current-limiting resistance is 5.1K Ω ± 0.5K Ω, the transmitting range of infrared signal is 18cm ± 2cm.The resistance of general telepilot upper flow resistance is fixed as 2.2K Ω, in the present embodiment, current-limiting resistance is set to adjustable resistance, after the resistance of current-limiting resistance tunes up, the transmitting range of infrared signal is decayed but the wavelength of infrared signal does not change, like this, by shortening the distance between telepilot and display, not only make the test of Receiver on display more convenient, also reduce the interference of external environment to infrared signal, avoid the phenomenon of infrared signal instability.
In the process of test, tester draws through overtesting: the distance between telepilot and display is preferably 18cm, and namely the transmitting range of infrared signal is preferably 18cm.Now, on display, the reception of Receiver is equivalent to current-limiting resistance is 2.2K Ω, the reception when transmitting range of infrared signal is 10 meters.Certainly, in other embodiments, its satisfied requirement to the transmitting range of infrared signal can be made by regulating the resistance of current-limiting resistance.
It should be understood that the transmitting range of the infrared signal that different remote is launched, the intensity of infrared signal all there are differences.As telepilot be YB cap telepilot time, when the resistance of current-limiting resistance is 4.3K Ω, when the transmitting range of infrared signal is 18cm, on display, the reception of Receiver is equivalent to current-limiting resistance is 2.2K Ω, the effect when transmitting range of infrared signal is 7 meters.When the resistance of current-limiting resistance is 4.7K Ω, when the transmitting range of infrared signal is 18cm, on display, the reception of Receiver is equivalent to current-limiting resistance is 2.2K Ω, and the transmitting range of infrared signal is the effect of 8 meters.When the resistance of current-limiting resistance is 5.1K Ω, when the transmitting range of infrared signal is 18cm, on display, the reception of Receiver is equivalent to current-limiting resistance is 2.2K Ω, and the transmitting range of infrared signal is the effect of 10 meters.
When telepilot is the telepilot of YAN1F type, when the resistance of current-limiting resistance is 3K Ω, when the transmitting range of infrared signal is 18cm, on display, the reception of Receiver is equivalent to current-limiting resistance is 2.2K Ω, and the transmitting range of infrared signal is the effect of 6 meters.The resistance of current-limiting resistance is 3.6K Ω, and when the transmitting range of infrared signal is 18cm, on display, the reception of Receiver is equivalent to current-limiting resistance is 2.2K Ω, and the transmitting range of infrared signal is the effect of 7 meters.The resistance of current-limiting resistance is 5.1K Ω, and when the transmitting range of infrared signal is 18cm, on display, the reception of Receiver is equivalent to current-limiting resistance is 2.2K Ω, and the transmitting range of infrared signal is the effect of 8 meters.
When telepilot is YAN4J type telepilot, when the resistance of current-limiting resistance is 4.32K Ω, when the transmitting range of infrared signal is 18cm, on display, the reception of Receiver is equivalent to current-limiting resistance is 2.2K Ω, and the transmitting range of infrared signal is the effect of 8 meters.When the resistance of current-limiting resistance is 4.7K Ω, when the transmitting range of infrared signal is 18cm, on display, the reception of Receiver is equivalent to current-limiting resistance is 2.2K Ω, and the transmitting range of infrared signal is the effect of 8.5 meters.The resistance of current-limiting resistance is 5.1K Ω, and when the transmitting range of infrared signal is 18cm, on display, the reception of Receiver is equivalent to current-limiting resistance is 2.2K Ω, and the transmitting range of infrared signal is the effect of 10 meters.
More preferably, telepilot also comprises shell 1, and infrarede emitting diode and current-limiting resistance are all arranged in shell 1.By arranging shell 1, ensure that the components and parts such as infrarede emitting diode and current-limiting resistance are not easy to damage.In the present embodiment, shell 1 is provided with the emitter window 11 corresponding with infrarede emitting diode, infrarede emitting diode embeds in emitter window 11.In the process used, infrared-emitting diode is aimed at the Receiver on display, ensure that the Receiver on display can receive the infrared signal of telepilot transmitting.
More preferably, this test fixture also comprises support 2, and support 2 is fixed on the shell 1 of described telepilot.By arranging support 2, effectively can control the service range of telepilot, namely being determined the transmitting range of infrared signal by support 2 accurately.In the present embodiment, support 2 is batten, and batten is for determining the transmitting range of the infrared signal that infrarede emitting diode sends.In the process of assembling, the bottom of the shell 1 of telepilot is alignd fixing with one end of support 2, make the emitter window 11 on telepilot equal the transmitting range of infrared signal to the distance of support 2 other end, such as, the emitter window on telepilot is 18cm ± 2cm to the distance of the support other end.That is, in the present embodiment, the length of batten is the transmitting range that the length of the shell of telepilot adds infrared signal.More preferably, telepilot also comprises key circuit and display circuit.
In the process of test, first display to be tested is placed on certain position, then the place of tester's hand-held remote controller outside range display 10 meters is progressively moved to display, till Receiver on display can receive the infrared signal of telepilot transmitting (distance now, between telepilot and display is approximately 7 ~ 8 meters).Then, tester tunes up the resistance of current-limiting resistance gradually, until when the distance between telepilot and display is 18cm, till the Receiver on display can receive the infrared signal of telepilot transmitting.
Test fixture of the present utility model, by the current-limiting resistance on telepilot is set to adjustable resistance, then the resistance by tuning up current-limiting resistance gradually adjusts the transmitting range of infrared signal, the transmitting range of infrared signal is reduced gradually, can the receptivity of Receiver on in-plant test display, this reduces the interference of external environment to infrared signal, avoid jitter or display in test process and do not receive the problem of signal, improve the testing efficiency of Receiver on display, can effectively filter out bad product.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (7)
1. a test fixture, for testing the performance of Receiver on display, is characterized in that:
Comprise telepilot, the radiating circuit of described telepilot comprises infrarede emitting diode and current-limiting resistance, described current-limiting resistance and the series connection of described infrarede emitting diode, and described current-limiting resistance is adjustable resistance, when the resistance of described current-limiting resistance increases, the transmitting range of the infrared signal that described infrarede emitting diode sends reduces.
2. test fixture according to claim 1, is characterized in that:
When the resistance of described current-limiting resistance is 5.1K Ω ± 0.5K Ω, the transmitting range of described infrared signal is 18cm ± 2cm.
3. test fixture according to claim 1, is characterized in that:
Described telepilot also comprises shell, and described infrarede emitting diode and described current-limiting resistance are all arranged in described shell.
4. test fixture according to claim 3, is characterized in that:
Described shell is provided with the emitter window corresponding with described infrarede emitting diode, and described infrarede emitting diode embeds in described emitter window.
5. test fixture according to claim 3, is characterized in that:
Also comprise support, described support is fixing on the housing.
6. test fixture according to claim 5, is characterized in that:
Described support is batten, and described batten is for determining the transmitting range of the infrared signal that described infrarede emitting diode sends.
7. test fixture according to claim 1, is characterized in that:
Described telepilot also comprises key circuit and display circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481184.3U CN204117355U (en) | 2014-08-25 | 2014-08-25 | Test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481184.3U CN204117355U (en) | 2014-08-25 | 2014-08-25 | Test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204117355U true CN204117355U (en) | 2015-01-21 |
Family
ID=52334645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420481184.3U Expired - Lifetime CN204117355U (en) | 2014-08-25 | 2014-08-25 | Test tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204117355U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270400A (en) * | 2018-11-01 | 2019-01-25 | 深圳创维数字技术有限公司 | The test circuit of infrared receiving terminal |
| CN110473395A (en) * | 2019-09-11 | 2019-11-19 | 格力电器（郑州）有限公司 | A kind of domestic air conditioner signal receives range estimation detection instrument and detection method |
| CN110501992A (en) * | 2019-08-07 | 2019-11-26 | 格力电器（武汉）有限公司 | WiFi detection board testing device |
-
2014
- 2014-08-25 CN CN201420481184.3U patent/CN204117355U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270400A (en) * | 2018-11-01 | 2019-01-25 | 深圳创维数字技术有限公司 | The test circuit of infrared receiving terminal |
| CN109270400B (en) * | 2018-11-01 | 2021-12-10 | 深圳创维数字技术有限公司 | Test circuit of infrared receiving head |
| CN110501992A (en) * | 2019-08-07 | 2019-11-26 | 格力电器（武汉）有限公司 | WiFi detection board testing device |
| CN110501992B (en) * | 2019-08-07 | 2021-07-20 | 格力电器（武汉）有限公司 | WiFi detection board testing device |
| CN110473395A (en) * | 2019-09-11 | 2019-11-19 | 格力电器（郑州）有限公司 | A kind of domestic air conditioner signal receives range estimation detection instrument and detection method |
| CN110473395B (en) * | 2019-09-11 | 2024-05-31 | 格力电器（郑州）有限公司 | Tool and method for judging and detecting signal receiving distance of household air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103353621B (en) | A kind of method that mobile terminal proximity transducer is calibrated and this mobile terminal | |
| CN204117355U (en) | Test tool | |
| CN204481817U (en) | Optical module parameter testing equipment | |
| CN103401605B (en) | Room temperature based on hot-pluggable optical module debugs system and room temperature adjustment method | |
| CN104092738A (en) | A remote nuclear phase system and method based on wireless Internet | |
| CN104464260A (en) | Short distance based remote controller pairing method and remote controller pairing circuit | |
| CN103297121B (en) | A kind of RSSI value curve-fitting method and system | |
| CN204031185U (en) | A kind of WIFI module automatic testing equipment | |
| CN203733295U (en) | Infrared forwarding circuit and sound box | |
| CN102636500A (en) | Humidity measuring method based on radio frequency | |
| CN201388204Y (en) | Amplitude-modulated laser transmitter | |
| US20120249120A1 (en) | Current loop detection system and current loop detection method thereof | |
| CN103346818B (en) | HFC gain adjustment method, HFC transponder and HFC response system | |
| CN103018602B (en) | Moment limiter testing device, system and method | |
| CN201569406U (en) | Remote control distance tester | |
| CN117054956A (en) | Electric energy meter pulse output detection method, device, equipment and storage medium | |
| CN111585670B (en) | Detection method and detection system of wireless detection system | |
| CN204479469U (en) | Infrared penetration rate proving installation | |
| CN202583319U (en) | Adsorption infrared circuit for electric energy meter | |
| CN208256093U (en) | A kind of remote-control key fault detection means | |
| CN204314455U (en) | A kind of proving installation of infrared receiver distance | |
| CN104464262B (en) | A kind of method and circuit that control remote control to enter infrared test | |
| CN202735473U (en) | Tester used for infrared ray reception apparatus | |
| CN204066367U (en) | A kind of wireless pc B board test instrument | |
| CN202522650U (en) | Rotary S21 detection device for mobile terminal antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150121 |