Test equipment for light sensor

Abstract

The utility model discloses a test device for a light sensor, which comprises a test box, a test cavity is arranged in the test box, the bottom surface of the test cavity is provided with a mounting table for placing the light sensor, and the mounting table is internally provided with a power supply module and a voltage measurement module which are used for connecting the light sensor. According to the utility model, the heating block and the humidifying assembly are arranged in the device, so that a linearity test, a function verification test, a performance stability test and a service life test can be carried out on the light sensor in different environments; a transverse moving plate is also arranged in the device, and the transverse moving plate can swing left and right when the heating block and the humidifying assembly work, so that the overall temperature and humidity in the device are balanced, and the distortion of a test result is avoided; after a single light sensor is tested, the transverse moving plate can be automatically opened, heat dissipation and moisture removal are carried out on the interior of the light sensor testing device through the transverse moving plate which swings in a reciprocating mode, and the other light sensor can be conveniently and rapidly tested.

Description

TECHNICAL FIELD

[0001] The utility model relates to photoelectric diode sensor technical field especially relates to a light sensor's testing equipment. BACKGROUND

[0002] Light sensor includes photoelectric diode sensor, photoconductive resistance etc., and its core function is to convert light signal into electric signal, is used in automation control, environmental monitoring etc.

[0003] Light sensor needs to carry out sampling inspection or whole inspection after production to carry out linearity test and function verification test, as shown in the general testing machine table disclosed in application No. 202323551702.2, the current light sensor test method is generally placed in a closed box, then the light sensor is tested through adjustable light source, and in order to test the stability of light sensor under different environmental temperature, the heat source is arranged in the box.

[0004] However, the above device has a problem, the heat source position is single, which can cause the temperature of a small part of the box to be too high, which can cause the sensing distortion of the temperature sensor inside, in addition, the above device only sets up the heat dissipation cover of passive heat dissipation, and the heat dissipation is slow, so the staff needs to wait for a long time to make it to room temperature, therefore, it needs to be improved. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a light sensor testing equipment to solve the problems mentioned in the background art.

[0006] The utility model provides the following technical scheme: a light sensor testing equipment, including test box, being equipped with test cavity in test box, and the bottom surface of test cavity is equipped with the installation platform for placing light sensor, and the power module and voltage measurement module for connecting light sensor are arranged in installation platform, the heating block is equipped on the side surface of test cavity, and the adjustable light source is equipped on the upper side of test cavity.

[0007] The test cavity is also equipped with a horizontal moving plate, and the test box is also provided with a drive motor for driving the horizontal moving plate to move left and right, and a temperature sensor is mounted on the horizontal moving plate.

[0008] Preferably, it further includes a horizontal moving door, which is slidably connected to the side surface of the test box to close the test cavity.

[0009] Preferably, the test cavity is through from front to back, and the horizontal moving door is provided with two distributed front and back.

[0010] Preferably, the test box has a protruding plate on the left edge of the front and rear sides, and the protruding plate and the sliding door are respectively equipped with permanent magnets.

[0011] Preferably, a sliding groove is provided on the front and rear sides of the transverse plate, and a telescopic plate is connected to the bottom of the sliding groove by a spring. A magnet is installed on the inner side of the telescopic plate, and an electromagnet for repelling the two magnets is provided in the transverse plate between the two sliding grooves.

[0012] The two sliding doors, front and rear, are equipped with a lever plate on their sides that are close to each other. The lever plate and the telescopic plate are at the same vertical height.

[0013] Preferably, the sliding door can only move to the right to open the test chamber, and the telescopic plate extends to the side outside the slide groove with a chamfer between its side and left side.

[0014] Preferably, it also includes a humidification component, which includes a water storage box mounted on the upper side of the test chamber, an atomizing plate installed in the bottom surface of the water storage box, and a water injection hole provided in the side of the water storage box.

[0015] Preferably, a humidity sensor is mounted on the side of the transverse plate.

[0016] Preferably, the drive motor is mounted on the outer wall of the test box, and a reciprocating lead screw is mounted on the output shaft extending from the drive motor, and a lead screw block connected to the reciprocating lead screw is mounted on the side of the transverse plate.

[0017] This invention provides a testing device for a light sensor, which has the following advantages:

[0018] This utility model is equipped with a heating block and a humidification component, which enables linearity testing, functional verification testing, performance stability testing, and service life testing of the light sensor under different environments;

[0019] This utility model also includes a transverse plate, which can swing left and right when the heating block and humidification component are working to ensure the overall temperature and humidity balance within the utility model and avoid distortion of test results.

[0020] After a single light sensor test is completed, this invention can automatically open the transverse plate and use the reciprocating swinging transverse plate to dissipate heat and dehumidify the interior of the invention, facilitating the rapid testing of another light sensor. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the appearance of this utility model;

[0022] Figure 2 This is the front view of this utility model;

[0023] Figure 3 This is a schematic diagram of the appearance of this utility model from another perspective;

[0024] Figure 4 yes Figure 1 A schematic diagram of the left view inside the middle horizontal sliding plate.

[0025] In the picture:

[0026] 11. Test chamber; 12. Test cavity; 13. Mounting platform; 14. Heating block; 15. Adjustable light source; 16. Horizontal sliding plate; 17. Drive motor; 18. Horizontal sliding door; 19. Slide rail; 20. Telescopic plate; 21. Actuating plate; 22. Water storage box; 23. Atomizing plate; 24. Reciprocating lead screw; 25. Electromagnet. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Reference Figures 1-4 According to an embodiment of the light sensor testing device of the present invention, a test box 11 is provided, the test box 11 is provided with a test cavity 12, and the bottom surface of the test cavity 12 is provided with a mounting platform 13 for placing the light sensor. The mounting platform 13 is provided with a power supply module and a voltage measurement module for connecting the light sensor, and the upper side of the test cavity 12 is provided with an adjustable light source 15.

[0032] During testing, the operator places the light sensor on the mounting platform 13. In this embodiment, the light sensor is a photodiode sensor, and the voltage measurement module is a multimeter. The operator connects the power supply and the multimeter to the photodiode sensor. At this time, different light intensities emitted by the adjustable light source 15 can cause the photodiode to output different values. The test box 11 is equipped with a display 41 on its side. The values ​​measured by the multimeter are communicated to the display 41 and displayed to perform linearity testing and functional verification testing on the photodiode sensor. The principle of this connection, measurement, and signal transmission is existing technology and will not be described in detail here.

[0033] In addition, in order to regulate the temperature and humidity inside the test chamber 12 during testing to test the reliability of the light sensor placed on the mounting platform 13, a heating block 14 is installed on the side of the test chamber 12. The heating block 14 serves as a heat source to raise the temperature inside the test chamber 12. A humidification component is also included, which includes a water storage box 22 installed on the upper side of the test chamber 12. An atomizing plate 23 is installed in the bottom surface of the water storage box 22, and a water injection hole is provided in the side of the water storage box 22. The atomizing plate 23 is used to atomize and spray the water in the water storage box 22 to regulate the humidity inside the test chamber 12.

[0034] To ensure a balanced temperature and humidity within the test chamber 12, a transverse plate 16 is installed inside the test chamber 12. The test chamber 11 is also equipped with a drive motor 17 for driving the transverse plate 16 to move left and right. When the atomizing plate 23 and the heating block 14 are working, the transverse plate 16 can move left and right to allow airflow within the test chamber 12 and to ensure a balanced overall temperature and humidity within the test chamber 12, preventing excessively high local temperatures and humidity that could interfere with sensor readings and test results. Furthermore, the transverse plate 16 is equipped with a temperature sensor and a humidity sensor, which receive temperature and humidity signals and communicate with the display 41 for display.

[0035] In addition, a sliding door 18 is included, which is slidably connected to the side of the test box 11 to close the test chamber 12. The operator can move the sliding door 18 to the right and open the test chamber 12, thereby placing or removing the photodiode sensor on the mounting platform 13.

[0036] In a second embodiment of the light sensor testing device, the test cavity 12 is open from front to back, and there are two sliding doors 18 distributed from front to back. The left edges of the front and rear sides of the test box 11 are respectively provided with protruding plates, and the sliding door 18 is at its left limit when it is attached to the protruding plate. The protruding plate and the sliding door are respectively equipped with permanent magnets so that they can be closed.

[0037] In this embodiment, a sliding groove 19 is provided on the front and rear sides of the transverse plate 16 respectively. The bottom surface of the sliding groove 19 is connected to a telescopic plate 20 by a spring. A magnet is installed on the inner side of the telescopic plate 20. An electromagnet 25 for repelling the two magnets is provided in the transverse plate 16 between the two sliding grooves 19.

[0038] A toggle plate 21 is provided on the side of the two sliding doors 18 that are close to each other. The toggle plate 21 and the telescopic plate 20 are at the same vertical height.

[0039] After a photodiode test is completed, the operator can control the horizontal sliding plate 16 to move left and right via the drive motor 17. During this process, the electromagnet 25 is energized to move the telescopic plates 20 away from each other until the telescopic plates 20 abut against the inner side of the horizontal sliding door 18. Then, when the horizontal sliding plate 16 moves to the right, the toggle plate 21 pushes the horizontal sliding door 18 to the right until the horizontal sliding door 18 moves to the far right and the test chamber 12 opens. Afterward, the horizontal sliding plate 16 continues to move left and right periodically to act as a fan and expel the heated and humidified air from the test chamber 12, restoring the room temperature.

[0040] After a certain period of time, the sliding plate 16 moves to the leftmost position and the drive motor 17 is de-energized. After that, the staff can close the sliding door 18, reposition the photodiode sensor, and perform a test.

[0041] The sliding door 18 can only move to the right to open the test chamber 12. In order to avoid the telescopic plate 20 popping out prematurely when the sliding door 18 is at the leftmost position, and the sliding door 18 moving to the left and interfering with the actuating plate 21, causing the sliding door 18 to overtravel, the telescopic plate 20 extends to the side outside the slide 19 and bevels between its left side. With this configuration, when the telescopic plate 20 moves to the left and contacts the actuating plate 21, it will retract until it moves to the left side of the actuating plate 21 and then protrudes again.

[0042] In this embodiment, the driving method of the transverse plate 16 is as follows: the drive motor 17 is mounted on the outer wall of the test box 11, and a reciprocating lead screw 24 is mounted on the output shaft extending from the drive motor 17. A lead screw block connected to the reciprocating lead screw 24 is mounted on the side of the transverse plate 16.

[0043] Furthermore, the inner wall of the test chamber 11 is provided with a heat-insulating coating to prevent excessive cooling when no heat dissipation is performed.

[0044] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A test apparatus for light sensors, comprising a test box (11), characterized in that: The test box (11) is internally provided with a test cavity (12), and the bottom surface of the test cavity (12) is provided with a mounting table (13) for placing a light sensor, the mounting table (13) is internally provided with a power module and a voltage measurement module for connecting the light sensor, the side surface of the test cavity (12) is provided with a heating block (14), and the upper side surface of the test cavity (12) is provided with an adjustable light source (15). The test cavity (12) is also provided with a transverse plate (16), and the test box (11) is also provided with a drive motor (17) for driving the transverse plate (16) to move left and right, and the transverse plate (16) is provided with a temperature sensor.

2. A test apparatus for a light sensor as claimed in claim 1, characterized in that: It also includes a transverse door (18) which is slidably connected to the side surface of the test box (11) to close the test cavity (12).

3. A test apparatus for a light sensor as claimed in claim 2, characterized in that: The test cavity (12) is through from front to back, and the transverse door (18) is provided with two front and back distributed.

4. A test apparatus for a light sensor as claimed in claim 3, characterized in that: The left side of the front and back side surfaces of the test box (11) is respectively provided with a convex plate, and the convex plate and the transverse door are respectively provided with a permanent magnet.

5. The test apparatus for a light sensor of claim 3, wherein: The front and back side surfaces of the transverse plate (16) are respectively provided with a sliding groove (19), the bottom surface of the sliding groove (19) is connected with a telescopic plate (20) through a spring, the inner side of the telescopic plate (20) is provided with a magnet, and the transverse plate (16) between the two sliding grooves (19) is provided with an electromagnet (25) for repelling the two magnets. The side surfaces of the front and back two transverse doors (18) are provided with a toggle plate (21), and the toggle plate (21) is at the same height as the telescopic plate (20).

6. A test apparatus for a light sensor as claimed in claim 5, characterized in that: The transverse door (18) can only move to the right to open the test cavity (12), and the side surface of the telescopic plate (20) extending out of the sliding groove (19) is chamfered with the left side surface.

7. The test apparatus for a light sensor of claim 1, wherein: It also includes a humidifying assembly, which includes a water storage box (22) mounted on the upper side surface of the test cavity (12), the bottom surface of the water storage box (22) is internally provided with an atomizing sheet (23), and the side surface of the water storage box (22) is provided with a water injection hole.

8. A test apparatus for a light sensor as claimed in claim 7, characterized in that: The side surface of the transverse plate (16) is provided with a humidity sensor.

9. The test apparatus for a light sensor of claim 1, wherein: The drive motor (17) is mounted on the outer wall of the test box (11), and the output shaft extending out of the drive motor (17) is provided with a reciprocating lead screw (24), and the side surface of the transverse plate (16) is provided with a lead screw block connected to the reciprocating lead screw (24).

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