CN219656914U - Automatic calibration device for electric vortex sensor - Google Patents
Automatic calibration device for electric vortex sensor Download PDFInfo
- Publication number
- CN219656914U CN219656914U CN202223272726.XU CN202223272726U CN219656914U CN 219656914 U CN219656914 U CN 219656914U CN 202223272726 U CN202223272726 U CN 202223272726U CN 219656914 U CN219656914 U CN 219656914U
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- Prior art keywords
- eddy current
- current sensor
- sensor
- laser ranging
- verification device
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- 238000005259 measurement Methods 0.000 claims abstract description 18
- 238000012795 verification Methods 0.000 claims description 20
- 230000003993 interaction Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000004164 analytical calibration Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910001104 4140 steel Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model belongs to the technical field of instrument calibration, and particularly relates to an automatic calibration device for an eddy current sensor, which comprises an eddy current sensor, an installation table, a laser ranging sensor, a measuring disc and a driving module; the mounting table is of an L-shaped structure, the eddy current sensor and the laser ranging sensor are mounted on a vertical table top of the mounting table, and the measuring disc and the driving module are mounted on the vertical table top of the mounting table. The utility model adopts the laser ranging sensor to realize the positioning of the calibration zero point and the distance measurement between the eddy current sensor and the measuring disc, does not interfere and influence the measurement of the eddy current sensor, ensures the high-precision distance measurement, realizes the positioning and the distance measurement of the calibration zero point through the signal of the laser ranging sensor, and finally realizes the full-automatic calibration of the eddy current sensor by the main control board.
Description
Technical Field
The utility model belongs to the technical field of instrument calibration, and particularly relates to an automatic calibration device for an eddy current sensor.
Background
According to Faraday electromagnetic induction principle, when a block-shaped metal conductor is placed in a changing magnetic field or moves in the magnetic field to cut magnetic force lines, induced current in a vortex shape is generated in the conductor, and the current is called an eddy current, and the phenomenon is called an eddy current effect. Thus, a sensor made according to the eddy current effect is called an eddy current sensor. The eddy current sensor can perform non-contact continuous measurement on displacement, thickness, speed, stress and the like, and has the characteristics of small volume, high sensitivity, wide frequency response and the like.
Currently, in industrial applications, the eddy current sensor needs to be checked regularly, and is generally commissioned to be performed by a metering institute. There are the following disadvantages: the eddy current sensor has complex inspection flow, long inspection time and uncontrollable inspection process; the inspection cost is high, and the maintenance cost is high in the past for a long time.
The prior patent discloses an eddy current sensor calibrator, which comprises a base, an eddy current sensor support, an adjusting mechanism support, an adjusting rod, an adjusting nut, a turntable, a dial indicator support and a dial indicator. The verification is mainly realized by a manual mode, the measurement accuracy is limited by a dial indicator, a manual adjustment mode and a manual reading adjustment mode, and the accuracy is low and the error is large. The patent does not employ laser ranging techniques for eddy current sensor verification.
The prior patent also discloses a full-automatic eddy current sensor static/dynamic calibrator which comprises a static calibration test piece disc, a probe mounting bracket, a guide rail expansion bracket, a positioning stop block, a non-mechanical contact type positioning switch, a stepping motor and a central control unit. The full-automatic calibration requirement can be realized, but the positioning is realized by virtue of the positioning stop block and the positioning switch, the displacement precision is limited by virtue of the precision of the stepping motor and the guide rail, and the precision is lower and the error is larger. The patent does not employ laser ranging techniques for eddy current sensor verification.
It is therefore desirable to provide an automatic calibration device for an eddy current sensor to solve the problems of the prior art.
Disclosure of Invention
The utility model aims to provide an automatic calibration device for an eddy current sensor, which solves the technical problems that a traditional manual calibration table needs manual measurement of distance and voltage output of a probe, and is low in working efficiency, large in error and the like.
The technical scheme for realizing the purpose of the utility model comprises the following steps:
an automatic calibration device of an eddy current sensor comprises the eddy current sensor, a mounting table, a laser ranging sensor, a measuring disc and a driving module;
the mounting table is of an L-shaped structure, the eddy current sensor and the laser ranging sensor are mounted on a vertical table top of the mounting table, and the measuring disc and the driving module are mounted on the vertical table top of the mounting table.
The laser ranging sensor and the eddy current sensor are clamped on the mounting table.
The end face of the laser ranging sensor and the end face of the eddy current sensor are in the same plane.
The measuring disc is made of different materials and different shapes, is applicable to eddy current sensors with different measuring ranges and different diameters, and has smooth and flat surface and is detachable and replaceable.
The driving module consists of a stepping motor, a screw rod and a sliding table, wherein the stepping motor, the screw rod and the sliding table are sequentially connected, and the screw rod receives a control signal to drive the stepping motor to rotate so as to drive the sliding table to move and further drive the measuring disc to move.
The farthest travel of the sliding table reaches 100mm.
The verification device is connected with a man-machine interaction terminal, and the man-machine interaction terminal is connected with the verification device through a built-in WiFi module.
The verification device is internally provided with a main control board, and realizes physical connection and signal transmission of a tested sensor, a laser ranging sensor, a stepping motor and a man-machine interaction terminal, and comprises stepping motor control, laser ranging sensor power supply, laser ranging sensor feedback signal processing, eddy current sensor power supply, eddy current sensor feedback signal acquisition processing, wiFi data transmission and the like.
The laser ranging sensor performs distance measurement by means of laser reflection, and the measurement accuracy reaches 0.01mm.
The beneficial technical effects of the utility model are as follows:
the utility model installs the probe, inputs the information such as the type of the probe, the effective range, the linear voltage range and the like at the terminal interface, and can automatically check the eddy current sensor by using a checking program and generate a checking report;
the utility model adopts the laser ranging sensor to realize the positioning of the calibration zero point and the distance measurement between the eddy current sensor and the measuring disc, does not interfere and influence the measurement of the eddy current sensor, ensures the high-precision distance measurement, realizes the positioning and the distance measurement of the calibration zero point through the signal of the laser ranging sensor, and finally realizes the full-automatic calibration of the eddy current sensor by the main control board.
Drawings
FIG. 1 is a side view of an automatic calibration device for an eddy current sensor according to the present utility model;
FIG. 2 is a top view of an automatic calibration device for an eddy current sensor according to the present utility model;
in the figure: 1-an eddy current sensor; 2-a mounting table; 3-a laser ranging sensor; 4-measuring disc; 5-driving module, 6-step motor; 7-a screw rod; 8-slipway.
Detailed Description
In order to enable those skilled in the art to better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the embodiments described below are only some, but not all, of the embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are within the scope of the present utility model based on the embodiments described herein.
As shown in fig. 1 and 2, the automatic checking device for the eddy current sensor provided by the utility model comprises an eddy current sensor 1, a mounting table 2, a laser ranging sensor 3, a measuring disc 4 and a driving module 5.
The mounting table 2 is of an L-shaped structure, the eddy current sensor 1 and the laser ranging sensor 3 are mounted on a vertical table top of the mounting table 2, and the measuring disc 4 and the driving module 5 are mounted on the vertical table top of the mounting table 2.
The mounting table 2 is used for fixing various sensors in different forms, and the laser ranging sensor 3 and the eddy current sensor 1 can be directly clamped on the mounting table 2.
For a particular eddy current sensor 1, the mounting table or fixture may be customized.
The end face of the laser ranging sensor 3 is in the same plane with the end face of the eddy current sensor 1.
The measuring disk 4 is made of 42CrMo, also known as 4140 steel, which is a standard material for checking the eddy current sensor 1.
In order to be suitable for the eddy current sensor 1 with different measuring ranges and different diameters, the measuring disc 4 is designed into different sizes, different materials and different shapes, the surface of the measuring disc 4 is smooth and flat, and the measuring disc 4 is detachable and replaceable.
The driving module 5 consists of a stepping motor 6, a screw rod 7 and a sliding table 8. The screw rod 7 receives a control signal, drives the stepping motor 6 to rotate, drives the sliding table 8 to move and further drives the measuring disc 4 to move.
The stroke of the sliding table 8 can reach 100mm, and the requirements of the common eddy current sensor 1 verification can be met.
The verification device is connected with a man-machine interaction terminal, the man-machine interaction terminal is connected with the verification device through a built-in WiFi module, an operation interface is concise and clear, and an automatic verification program is configured.
The verification device is internally provided with a main control board for realizing physical connection and signal transmission from a tested sensor, a laser ranging sensor 3, a stepping motor 6 and a man-machine interaction terminal, and comprises stepping motor 6 control, laser ranging sensor 3 power supply, laser ranging sensor 3 feedback signal processing, eddy current sensor 1 power supply, eddy current sensor 1 feedback signal acquisition processing, wiFi data transmission and the like.
The rechargeable lithium battery is arranged in the verification device, so that the continuous work for a certain time can be met. The whole device is integrated in a special instrument box, so that the use and transportation of the automatic checking device are facilitated.
The utility model adopts the laser ranging sensor 3 to realize zero point positioning and distance measurement. The laser ranging sensor 3 performs distance measurement by means of laser reflection, and does not interfere or affect the ranging of the eddy current sensor 1. The main control board collects signals of the laser ranging sensor 3, converts the signals into driving control signals, realizes adjustment of zero point positioning and checking distance, does not need manual adjustment and manual reading, and can reach measurement accuracy of 0.01mm.
After the laser ranging sensor 3 is installed, a reset button is clicked, the device moves to a laser ranging zero point, the current position is recorded as a checking zero point, the end face of the eddy current sensor 1 and the end face of the laser ranging sensor 3 are installed in the same plane, checking is started by clicking in an operation interface, the device starts to automatically operate according to a preset strategy, and software automatically analyzes the collected signals of the laser ranging sensor 3 and the voltage signals of the eddy current sensor 1 and automatically generates a checking report.
The present utility model has been described in detail with reference to the drawings and the embodiments, but the present utility model is not limited to the embodiments described above, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model. The utility model may be practiced otherwise than as specifically described.
Claims (9)
1. An automatic calibration device of an eddy current sensor is characterized in that: the device comprises an eddy current sensor (1), a mounting table (2), a laser ranging sensor (3), a measuring disc (4) and a driving module (5);
the mounting table (2) is of an L-shaped structure, the eddy current sensor (1) and the laser ranging sensor (3) are mounted on a vertical table top of the mounting table (2), and the measuring disc (4) and the driving module (5) are mounted on the vertical table top of the mounting table (2).
2. An eddy current sensor automatic verification device as claimed in claim 1, wherein: the laser ranging sensor (3) and the eddy current sensor (1) are clamped on the mounting table (2).
3. An eddy current sensor automatic verification device as claimed in claim 2, wherein: the end face of the laser ranging sensor (3) and the end face of the eddy current sensor (1) are in the same plane.
4. An eddy current sensor automatic verification device as claimed in claim 3, wherein: the measuring disc (4) is of different sizes, different materials and different shapes, is applicable to the eddy current sensor (1) with different measuring ranges and different diameters, and has smooth and flat surface and is detachable and replaceable.
5. An eddy current sensor automatic verification device as claimed in claim 4, wherein: the driving module (5) consists of a stepping motor (6), a screw rod (7) and a sliding table (8), wherein the stepping motor (6), the screw rod (7) and the sliding table (8) are sequentially connected, the screw rod (7) receives a control signal to drive the stepping motor (6) to rotate, and the sliding table (8) is driven to move so as to drive the measuring disc (4) to move.
6. An eddy current sensor automatic verification device as claimed in claim 5, wherein: the farthest travel of the sliding table (8) reaches 100mm.
7. The automatic calibration device for an eddy current sensor according to claim 6, wherein: the verification device is connected with a man-machine interaction terminal, and the man-machine interaction terminal is connected with the verification device through a built-in WiFi module.
8. An eddy current sensor automatic verification device as claimed in claim 7, wherein: the verification device is internally provided with a main control board, and realizes physical connection and signal transmission from a tested sensor, a laser ranging sensor (3), a stepping motor (6) and a man-machine interaction terminal, and comprises stepping motor (6) control, laser ranging sensor (3) power supply, laser ranging sensor (3) feedback signal processing, eddy current sensor (1) power supply, eddy current sensor (1) feedback signal acquisition processing and WiFi data transmission.
9. The automatic calibration device for an eddy current sensor according to claim 8, wherein: the laser ranging sensor (3) performs distance measurement by means of laser reflection, and the measurement accuracy reaches 0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223272726.XU CN219656914U (en) | 2022-12-07 | 2022-12-07 | Automatic calibration device for electric vortex sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223272726.XU CN219656914U (en) | 2022-12-07 | 2022-12-07 | Automatic calibration device for electric vortex sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219656914U true CN219656914U (en) | 2023-09-08 |
Family
ID=87860885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223272726.XU Active CN219656914U (en) | 2022-12-07 | 2022-12-07 | Automatic calibration device for electric vortex sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219656914U (en) |
-
2022
- 2022-12-07 CN CN202223272726.XU patent/CN219656914U/en active Active
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