CN216485466U - Electrostatic sensor testing device - Google Patents
Electrostatic sensor testing device Download PDFInfo
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- CN216485466U CN216485466U CN202122668404.6U CN202122668404U CN216485466U CN 216485466 U CN216485466 U CN 216485466U CN 202122668404 U CN202122668404 U CN 202122668404U CN 216485466 U CN216485466 U CN 216485466U
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Abstract
An electrostatic sensor testing device belongs to the testing field. Arranging a metal test shielding cabin; a calibration/test flat electrode is arranged in the test shielding cabin and is fixed in the test shielding cabin through an insulating support; arranging a sensor fixing part above the calibration/test flat plate electrode; setting a manual testing distance adjusting device; the manual testing distance adjusting device comprises a group of vertical moving mechanisms and a testing bracket arranged on the vertical moving mechanisms; the test bracket horizontally extends into the test shielding cabin; the sensor fixing piece is sleeved on the horizontally arranged test bracket; a pluggable assembly structure is formed between the sensor fixing piece and the electrostatic sensor to be measured; the static voltage detection window of the static sensor is positioned right above the center of the calibration/test flat plate electrode. Through setting up a totally enclosed electromagnetic shield structure, can shield external interference in the test procedure, can realize the electrostatic voltage detection of sensor under the dynamic test distance.
Description
Technical Field
The utility model belongs to the field of testing, and particularly relates to a testing device for calibrating or testing an electrostatic sensor.
Background
The electrostatic sensor is widely applied to an electronic industrial production line to perform online real-time electrostatic monitoring on products; the accuracy of the monitoring result has important influence on the production process, the product quality and the anti-static control measures. For the calibration or test of the electrostatic sensor, although there is a related national measurement standard (JJF 1517-; however, these technical details have a significant influence on the calibration or testing of the electrostatic sensor and cannot be ignored. Therefore, if the calibration/test device specified according to the existing national measurement standard cannot meet the calibration or test requirements of the electrostatic sensor, it is urgently needed to develop a set of electrostatic sensor test device meeting the actual requirements.
Existing electrostatic sensor calibration or testing devices typically include: the device comprises a flat plate electrode for calibration or calibration/test, an insulating support, an electrostatic sensor mounting part, a test distance adjusting device and a direct-current high-voltage power supply.
The prior art has the following technical defects:
1) because the existing electrostatic sensor testing device has no additional shielding measure, the testing device is very easy to be interfered by the background of external electrostatic field, electromagnetic field and/or space charge, and the accuracy of electrostatic voltage testing is influenced.
2) Because the voltage waveform that can't detect in real time is recorded and is preserved, just can't convenient continuous monitoring and analysis data.
3) Because of the existing electrostatic sensor testing device, the testing distance cannot be automatically adjusted, recorded and stored, and therefore analysis of the electrostatic voltage detection rule under the dynamic detection distance is inconvenient.
In addition, the conventional electrostatic sensor testing device can only satisfy the basic electrostatic voltage testing function, and cannot automatically record and store the detected voltage waveform and the corresponding detection distance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a testing device of an electrostatic sensor. The fully-sealed electromagnetic shielding structure is arranged, so that the background interference of an external electrostatic field, an electromagnetic field and/or space charge can be shielded in the whole test process, and the test cannot be influenced by external interference; the electrostatic voltage detection of the sensor under the dynamic test distance can be realized, and the basic rule of the electrostatic detection can be analyzed; the sensor fixing piece of the plug-in structure is adopted, so that the sensor can be conveniently installed and fixed, and the test working efficiency of the sensor is obviously improved.
The technical scheme of the utility model is as follows: the electrostatic sensor testing device is characterized in that:
arranging a test shielding cabin;
the bin wall of the test shielding bin is made of metal plates;
arranging a calibration/test flat electrode in the test shielding cabin, wherein the calibration/test flat electrode is fixed in the test shielding cabin through at least one insulating support;
a sensor fixing part is arranged above the calibration/test flat plate electrode;
setting a manual testing distance adjusting device;
the manual testing distance adjusting device at least comprises a group of vertical moving mechanisms and a testing bracket arranged on the vertical moving mechanisms;
the test support horizontally extends into the test shielding cabin and can vertically move up and down under the driving and supporting of the vertical moving mechanism;
the sensor fixing piece is sleeved on the horizontally arranged test bracket;
a pluggable assembly structure is formed between the sensor fixing piece and the electrostatic sensor to be detected;
the static sensor fixed on the sensor fixing part or a static voltage detection window of the static sensor is positioned right above the center of the flat electrode for calibration/test;
the calibration/test flat plate electrode is correspondingly and electrically connected with a high-voltage direct-current power supply/high-voltage waveform generator;
the detection signal or detection data of the electrostatic sensor is output through an RJ45 network cable interface.
Specifically, the test shielding cabin is a cuboid or a cube, and an antistatic material layer is arranged on the inner surface of the cabin body of the test shielding cabin.
Specifically, the test shielding cabin forms an independent space which is not interfered by external electromagnetism or light.
Specifically, the vertical movement mechanism at least comprises a group of gear-rack kinematic pairs, and the test distance manual adjusting device is driven to perform manual vertical movement by rotating a rotating handle arranged on the test distance manual adjusting device.
Further, a pair of clamping arm structures is arranged below the sensor fixing piece; the electrostatic sensor to be measured can be fixed below the sensor fixing piece in a pluggable mode through the clamping arm structure.
Furthermore, the manual testing distance adjusting device also comprises a group of horizontal moving mechanisms;
the horizontal moving mechanism at least comprises a group of gear-rack kinematic pairs;
the rack in the gear-rack kinematic pair of the horizontal movement mechanism is arranged on a horizontal guide rail, and the horizontal guide rail is fixed on a bottom plate which is fixed with the test shielding cabin into a whole; the gear in the gear-rack kinematic pair of the horizontal moving mechanism is fixedly connected with a vertical guide rail fixed in the manual testing distance adjusting device into an integral structure.
Specifically, the electrostatic sensor is electrically connected with a POE power supply through an RJ45 network cable interface;
furthermore, the control end of the high-voltage direct-current power supply/high-voltage waveform generator is correspondingly connected with the I/O end of the PLC.
Furthermore, the I/O end of the PLC is electrically connected with the touch display screen correspondingly.
Compared with the prior art, the utility model has the advantages that:
1. the anti-static test shielding cabin is arranged in the technical scheme, so that the background interference of an external electrostatic field, an electromagnetic field and/or space charge can be shielded, and the accuracy of the electrostatic voltage test is not influenced.
2. The electrostatic sensor testing device can realize electrostatic voltage detection of the sensor under a dynamic testing distance, and is beneficial to analyzing the basic rule of electrostatic detection.
3. The plug-in type sensor fixing piece is adopted, so that the sensor can be conveniently installed and fixed, and the testing work efficiency of the sensor is obviously improved.
4. The testing device can record and store the voltage detected in real time and the detection distance waveform corresponding to the voltage, and is convenient for continuous monitoring and data analysis.
Drawings
FIG. 1 is a schematic block diagram of the module of the electrostatic sensor testing device according to the present invention;
FIG. 2 is a schematic front view of the mechanical structure of the electrostatic sensor testing apparatus according to the present embodiment;
fig. 3 is a left side view schematically illustrating a mechanical structure of the electrostatic sensor testing apparatus according to the present embodiment;
FIG. 4 is a schematic perspective view of a sensor fixing member according to the present invention;
FIG. 5 is a schematic perspective view of a sensor fixing member according to the present invention;
FIG. 6 is a schematic view of an assembly structure of a sensor fixing member and a sensor according to the present invention;
FIG. 7 is a schematic view of another assembly structure of the sensor fixing member and the sensor according to the present invention;
fig. 8 is a block diagram schematically illustrating a module configuration of an embodiment of the electrostatic sensor testing apparatus according to the present invention.
In the figure, 1 is a test shielding cabin, 2 is an electrostatic sensor, 3 is a flat plate electrode for calibration/test, 4 is an insulating support, 5 is a manual adjusting device for test distance, 5a is a vertical guide rail, 5b is a horizontal guide rail, 5c is a vertical movement module, 5d is a horizontal movement module, 6 is a sensor fixing part, 6a is a clamping arm, 6b is a square perforation, 7 is a test support, 8 is a direct current high-voltage power supply/high-voltage waveform generator, 9 is a rotating handle, 10 is an RJ45 net mouth deconcentrator, 11 is a POE power supply, 12 is a PLC controller, and 13 is a touch display screen.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The technical scheme adopts the following structural form and connection mode:
as shown in fig. 1, 2 and 3, the technical scheme is that a test shielding chamber 1 is arranged, an electrostatic sensor 2, a flat plate electrode 3 for calibration/test and an insulating support 4 are placed inside the test shielding chamber, the test shielding chamber is made of metal, and an antistatic material is laid or coated or stuck on the inner surface of a chamber body.
The static sensor or the static voltage detection window of the static sensor is positioned right above the center of the calibration/test flat electrode, and the calibration/test flat electrode is fixed by an insulating bracket and is electrically insulated from other objects.
Set up a manual adjusting device 5 of test distance, the manual adjusting device of test distance includes horizontal migration mechanism and vertical movement mechanism, still includes horizontal distance display scale and vertical distance display scale (not shown in the figure), can realize electrostatic sensor's vertical motion and horizontal migration from top to bottom for carry out the regulation of detection distance and electrostatic sensor position.
The manual testing distance adjusting device also comprises a testing support 7 arranged on the vertical moving mechanism, wherein the testing support horizontally extends into the testing shielding cabin to bear the electrostatic sensor and can conveniently move vertically to change the distance between the electrostatic sensor and the flat plate electrode for calibration/testing.
A sensor fixing member 6 is provided as shown in fig. 4 and 5 for fixing the electrostatic sensor, and the sensor fixing member is sleeved on the horizontally arranged test bracket through a square through hole 6b provided thereon, so as to realize the adjustment of the detection distance of the sensor.
Below the sensor mount, a pair of clamp arm structures 6a are provided for clamping the electrostatic sensor.
As shown in fig. 6 and 7, the sensor holder and the electrostatic sensor are in a plug-in type assembly structure relationship.
The horizontal moving mechanism and the vertical moving mechanism at least comprise a group of gear-rack kinematic pairs.
The rack in the horizontal moving mechanism gear-rack kinematic pair is arranged on a horizontal guide rail, the horizontal guide rail is fixed on a bottom plate which is fixed with the test shielding cabin into a whole, and a gear in the horizontal moving mechanism gear-rack kinematic pair is fixedly connected with a vertical guide rail fixed in the manual testing distance adjusting device into a whole structure to drive the vertical guide rail to move horizontally.
The rack in the vertical moving mechanism gear-rack kinematic pair is arranged on a vertical guide rail which is fixed on the horizontal moving mechanism, and the gear in the vertical moving mechanism gear-rack kinematic pair is fixedly connected with the manual testing distance adjusting device into an integral structure; through rotating the rotating handle who sets up on the manual adjusting device of test distance, can drive the manual vertical migration that carries out the manual formula of test distance manual adjusting device.
Since the mechanical structure of the gear-rack kinematic pair is the prior art, the specific structure and connection method thereof will not be described here.
In general, since the detection distance between the electrostatic sensor and the calibration/test plate electrode (i.e. the vertical distance between the electrostatic sensor 2 and the calibration/test plate electrode 3 shown in fig. 2 or 3) is one of the key factors determining the detection result, in the present embodiment, the structure of the horizontal moving mechanism is not necessary as long as the vertical guide rail and the calibration/test plate electrode are disposed on the same axis.
During actual use, the calibration/test plate electrode is electrically connected with the direct-current high-voltage power supply/high-voltage waveform generator correspondingly, a required working voltage is applied to the calibration/test plate electrode, the electrostatic field intensity or the electrostatic voltage of the calibration/test plate electrode is detected by the electrostatic sensor, the electrostatic sensor can be calibrated/tested, and detection data of the electrostatic sensor is conducted and output through an RJ45 network port deconcentrator (also called as a network cable socket).
During actual use, the PLC, the touch display screen and a POE Power supply (Power Over Ethernet, also called as a Power supply system based on a local area network) can be respectively and correspondingly connected with the device, so that the operation automation degree of the whole set of electrostatic sensor testing device is improved.
Example (b):
a system module of the electrostatic sensor testing device is shown in figure 8, and comprises the following parts: the device comprises a test shielding cabin 1, an insulating support 4, a flat plate electrode 3 for calibration/test, a sensor fixing part 6, a test distance manual adjusting device 5, a high-voltage direct current power supply/high-voltage waveform generator 8, a PLC (programmable logic controller) 12, a touch display screen 13, a POE (power over Ethernet) power supply 11 and an RJ45 network port deconcentrator 10.
As shown in fig. 2 and 3, the testing shielding chamber 1 is used for providing an independent space free from external interference for electrostatic voltage detection/testing of the electrostatic sensor 2, and the electrostatic sensor, the sensor fixing member, the flat plate electrode for calibration/testing, and the insulating support are placed inside the testing shielding chamber.
The test shielding cabin is made of metal or metal-containing materials and is used for shielding the background interference of external electrostatic fields, electromagnetic fields and/or space charges on the test, and the inner surface of the cabin body is paved or coated or pasted with an antistatic material.
The electrostatic sensor or the electrostatic voltage detection window thereof is positioned right above the center of the flat plate electrode, and the flat plate electrode is fixed at the bottom of the test shielding cabin by an insulating bracket and is electrically insulated from other objects.
The manual test distance adjustment device provides up and down vertical movement of the sensor, i.e., adjustment of the detection distance.
As shown in fig. 4 and 5, the sensor holder 6 is used to hold the electrostatic sensor, the electrostatic sensor can be directly inserted into the sensor holder, and the RJ45 power cable can be inserted into the RJ45 port of the electrostatic sensor from the RJ45 power cable jack at the rear end of the sensor holder.
The sensor fixing piece is provided with a rectangular or square through hole 6a for inserting the test support 7, and is conveniently connected and fixed with a vertical distance adjusting assembly of the manual test distance adjusting device, so that the detection distance of the sensor can be adjusted.
And the high-voltage output end of the direct-current high-voltage power supply or the high-voltage waveform generator is electrically connected with the flat plate electrode for calibration/test and is used for simulating the tested charged object.
The POE power supply contains RJ45 network port, can realize 24VDC direct current power supply simultaneously and be connected with the communication, and it can be simultaneously for touch display screen, manual adjusting device of test distance and PLC controller power supply to establish communication connection with the PLC controller.
Meanwhile, the POE power supply supplies power to the electrostatic sensor through the RJ45 net port deconcentrator and establishes communication connection with the electrostatic sensor, and the reason that the RJ45 net port deconcentrator is adopted is that the electrostatic sensor needs to be preheated, so that when one sensor is tested, the other sensor can be preheated simultaneously, and the testing efficiency is improved.
And connecting communication ports of the touch display screen and the PLC to establish communication connection between the touch display screen and the PLC, so that the detection parameters of the electrostatic sensor can be corrected through the touch display screen, and the real-time detection data of the electrostatic sensor can be observed.
The PLC is connected with the communication port of the manual testing distance adjusting device, communication connection between the PLC and the manual testing distance adjusting device is established, working parameters of a motor of the manual testing distance adjusting device can be adjusted and set through the touch display screen, the up-and-down movement period/frequency and the position of the sensor are changed, dynamic static voltage detection under the changing distance is achieved, and the corresponding relation between the real-time detection voltage of the static sensor and the detection distance is observed.
The monitoring signal output end of the direct-current high-voltage power supply or the high-voltage waveform generator is connected with the communication port of the PLC, the communication relation between the direct-current high-voltage power supply and the PLC is established, the high-voltage output of the direct-current high-voltage power supply or the high-voltage waveform generator can be observed through the touch display screen, and can be compared with the voltage detected by the electrostatic sensor, and the detection performance of the sensor is verified.
The testing distance adjusting device is a manual adjusting device, and related testing functions can be partially realized by rotating the rotating handle 9.
As shown in fig. 6 and 7, the sensor holder 6 and the electrostatic sensor 7 are in a plug-in type assembly relationship.
The rest is the same as the above description, and the description is not repeated.
According to the technical scheme, the electrostatic sensor to be tested and the flat plate electrode for calibration/test are placed in the test shielding cabin, so that background interference of an external electrostatic field, an electromagnetic field and/or space charge can be shielded, and the accuracy of electrostatic voltage test is not influenced; the device can realize the electrostatic voltage detection of the sensor under the dynamic test distance, and is beneficial to analyzing the basic rule of the electrostatic detection; the sensor fixing piece of the plug-in structure is adopted, so that the sensor can be conveniently installed and fixed, and the test working efficiency of the sensor is obviously improved.
The utility model can be widely applied to the field of manufacturing and testing of the electrostatic sensor.
Claims (9)
1. An electrostatic sensor testing device is characterized in that:
arranging a test shielding cabin;
the bin wall of the test shielding bin is made of metal plates;
arranging a calibration/test flat electrode in the test shielding cabin, wherein the calibration/test flat electrode is fixed in the test shielding cabin through at least one insulating support;
a sensor fixing part is arranged above the calibration/test flat plate electrode;
setting a manual testing distance adjusting device;
the manual testing distance adjusting device at least comprises a group of vertical moving mechanisms and a testing bracket arranged on the vertical moving mechanisms;
the test support horizontally extends into the test shielding cabin and can vertically move up and down under the driving and supporting of the vertical moving mechanism;
the sensor fixing piece is sleeved on the horizontally arranged test bracket;
a pluggable assembly structure is formed between the sensor fixing piece and the electrostatic sensor to be tested;
the static sensor fixed on the sensor fixing part or a static voltage detection window of the static sensor is positioned right above the center of the flat electrode for calibration/test;
the calibration/test flat plate electrode is correspondingly and electrically connected with a high-voltage direct-current power supply/high-voltage waveform generator;
the detection signal or detection data of the electrostatic sensor is output through an RJ45 network cable interface.
2. The electrostatic sensor testing device according to claim 1, wherein the testing shielded room is a rectangular or square body, and an antistatic material layer is provided on an inner surface of the testing shielded room.
3. The electrostatic sensor testing apparatus according to claim 1, wherein said test shield compartment forms an independent space free from external electromagnetic or optical interference.
4. The electrostatic sensor testing apparatus according to claim 1, wherein the vertical moving mechanism comprises at least one set of gear-rack kinematic pairs, and the manual test distance adjusting device is driven to manually vertically move by rotating a rotating handle provided on the manual test distance adjusting device.
5. The electrostatic sensor testing apparatus according to claim 1, wherein a pair of clamp arm structures are provided below said sensor mount; the electrostatic sensor to be measured can be fixed below the sensor fixing piece in a pluggable mode through the clamping arm structure.
6. The electrostatic sensor testing apparatus according to claim 1, wherein said manual measuring distance adjusting means further comprises a plurality of horizontal moving mechanisms;
the horizontal moving mechanism at least comprises a group of gear-rack kinematic pairs;
the rack in the gear-rack kinematic pair of the horizontal movement mechanism is arranged on a horizontal guide rail, and the horizontal guide rail is fixed on a bottom plate which is fixed with the test shielding cabin into a whole; the gear in the gear-rack kinematic pair of the horizontal moving mechanism is fixedly connected with a vertical guide rail fixed in the manual testing distance adjusting device into an integral structure.
7. The electrostatic sensor testing device according to claim 1, wherein the electrostatic sensor is electrically connected to a POE power source through an RJ45 cable interface.
8. The electrostatic sensor testing device according to claim 1, wherein the control terminal of the high voltage dc power supply/high voltage waveform generator is further connected to an I/O terminal of a PLC controller.
9. The electrostatic sensor testing device according to claim 8, wherein the I/O terminal of the PLC controller is further electrically connected to the touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122668404.6U CN216485466U (en) | 2021-11-02 | 2021-11-02 | Electrostatic sensor testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122668404.6U CN216485466U (en) | 2021-11-02 | 2021-11-02 | Electrostatic sensor testing device |
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| CN216485466U true CN216485466U (en) | 2022-05-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076530A (en) * | 2022-05-23 | 2022-09-20 | 北京无线电计量测试研究所 | Probe strutting arrangement |
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2021
- 2021-11-02 CN CN202122668404.6U patent/CN216485466U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076530A (en) * | 2022-05-23 | 2022-09-20 | 北京无线电计量测试研究所 | Probe strutting arrangement |
| CN115076530B (en) * | 2022-05-23 | 2023-11-28 | 北京无线电计量测试研究所 | Probe supporting device |
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