CN220187628U - Auxiliary calibration tool for eddy current displacement sensor - Google Patents
Auxiliary calibration tool for eddy current displacement sensor Download PDFInfo
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- CN220187628U CN220187628U CN202321154382.4U CN202321154382U CN220187628U CN 220187628 U CN220187628 U CN 220187628U CN 202321154382 U CN202321154382 U CN 202321154382U CN 220187628 U CN220187628 U CN 220187628U
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- displacement sensor
- current displacement
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 47
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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Abstract
The utility model discloses an auxiliary calibration tool for an eddy current displacement sensor, which belongs to the technical field of calibration tools and comprises the following components: the base is arranged on the first installation position and the second installation position on the base, the adjusting component is arranged in the base, and the third installation position is connected with the adjusting component; the first installation position is used for fixing the laser interferometer host, the second installation position is used for fixing the baffle plate, the third installation position is used for installing the eddy current displacement sensor, and the first installation position, the second installation position and the third installation position are positioned on the same straight line. The utility model solves the technical problems that the test bed movement mechanism can not ensure the straightness and can not meet the requirement of selecting the uniformly distributed calibration points in the output range, and realizes the technical effects of ensuring that the first installation position, the second installation position and the third installation position are on the same straight line and selecting the uniformly distributed calibration points in the output range.
Description
Technical Field
The utility model relates to the technical field of calibration tools, in particular to an auxiliary calibration tool for an eddy current displacement sensor.
Background
According to JJF1305-2011, linear displacement sensor calibration specification, when an eddy current displacement sensor is calibrated, the installation of the sensor needs to conform to abbe's principle, and 11 calibration points need to be approximately uniformly distributed in an output range in the calibration process.
In the prior art, when calibration of the eddy current displacement sensor is carried out, an in-situ calibration mode is generally adopted for calibration, a test bed moving mechanism is manually pushed to give a calibration point by means of a moving mechanism of the test bed where the eddy current displacement sensor is located and a special baffle plate, and then eddy current signals are induced by the eddy current displacement sensor and the special baffle plate to complete calibration of the eddy current displacement sensor.
However, by means of the moving mechanism of the test bed where the eddy current displacement sensor is located, in the process of driving the eddy current displacement sensor to move, the mounting mode of the eddy current displacement sensor during calibration cannot meet the requirement of the Abbe principle due to the fact that the straightness of the moving mechanism of the test bed cannot be guaranteed; on the other hand, the calibration points are manually given to calibrate the eddy current displacement sensor, and the calibration points are random, so that the requirement that 11 calibration points are required to be approximately uniformly distributed in the output range is not met.
Disclosure of Invention
In order to solve the above problems, the present utility model provides an auxiliary calibration tool for an eddy current displacement sensor, which is used for calibrating after installing a laser interferometer and the eddy current displacement sensor, and comprises:
the base is arranged on the first installation position and the second installation position on the base, the adjusting component is arranged in the base, and the third installation position is connected with the adjusting component;
the first installation position is used for fixing the laser interferometer host, the second installation position is used for fixing the baffle plate, the third installation position is used for installing the eddy current displacement sensor, and the first installation position, the second installation position and the third installation position are positioned on the same straight line;
the base is of a cuboid hollow structure, a hollow part of the base is a containing cavity for containing the adjusting component, and a connecting port is formed in the top of the base;
the adjusting component comprises a hand wheel, a screw guide rail structure connected with the hand wheel and a connecting block connected with the screw guide rail;
the connecting block extends out of the base through the connecting port;
the third installation position is arranged on the connecting block.
Optionally, the hand wheel is located outside one side of the base.
Optionally, the connection port is a rectangular structure.
Optionally, the connection port is arranged along the length direction of the base and is parallel to the arrangement direction of the screw rod guide rail structure.
Optionally, the connecting block is T-shaped structure, and the protruding portion of its top both sides is in butt with the top of base.
By adopting the technical scheme, the utility model has the following technical effects:
through setting up the lead screw guide rail structure in the base, utilize the third installation position of lead screw guide rail transmission to carry out linear reciprocating motion, select evenly distributed's calibration point in output range through the week number of control rotatory hand wheel, solved test bench motion can't guarantee straightness accuracy and select evenly distributed calibration point can't satisfy in output range technical problem, realized guaranteeing that first installation position, second installation position and third installation position are in on the same straight line to and select evenly distributed calibration point's technical effect in output range.
Drawings
FIG. 1 is a schematic structural diagram of an auxiliary calibration fixture for an eddy current displacement sensor according to the present utility model;
fig. 2 is a schematic structural diagram of an auxiliary calibration tool for an eddy current displacement sensor according to the present utility model.
Wherein the reference numerals have the following meanings:
1. a base; 11. a receiving chamber; 12. a mounting surface; 13. a connection port;
2. a first mounting location; 21. A laser interferometer host;
3. a second mounting location; 31. A baffle;
4. an adjustment assembly; 41. a hand wheel; 42. a screw rod guide rail structure; 43. a connecting block;
5. a third mounting location; 51. an eddy current displacement sensor.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a detailed description of embodiments of the present utility model will be provided below, together with the accompanying drawings, wherein it is evident that the embodiments described are only some, but not all, of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Referring to fig. 1-2, the present utility model provides an auxiliary calibration tool for an eddy current displacement sensor, which is used for calibrating an eddy current displacement sensor after installing a laser interferometer and the eddy current displacement sensor in practical application, and comprises a base 1, a first installation position 2 and a second installation position 3 arranged on the base 1, an adjusting component 4 arranged in the base 1, and a third installation position 5 connected with the adjusting component 2.
Further, the base 1 is a rectangular hollow structure, the hollow portion thereof is a receiving cavity 11 for receiving the adjusting component 2, in addition, the upper surface of the base 1 is a mounting surface 12 for setting a first mounting position 2 and a second mounting position 3, specifically, the first mounting position 2 is disposed on the mounting surface 12 for fixing the laser interferometer host 21, and the second mounting position 3 is also disposed on the mounting surface 12 for fixing the baffle 31.
It will be appreciated by those skilled in the art that the baffle 41 is machined from a metal conductor that meets the magnetic permeability requirements, and that its geometry is adapted to the eddy current sensor probe for cooperation with the eddy current sensor probe to generate an eddy current signal.
Further, the adjusting component 4 is arranged in the base 1 and comprises a hand wheel 41, a screw guide rail structure 42 connected with the hand wheel 41 and a connecting block 43 connected with the screw guide rail 42; the hand wheel 41 is located outside one side of the base 1, so that an operator can operate the hand wheel 41, and the operator can drive the connecting block 43 connected with the screw guide rail structure 42 to perform linear reciprocating motion by rotating the hand wheel 41.
In a preferred embodiment, an opening is provided along the base 1 at the center of the mounting surface 12, and the opening is a connection port 13, and after the connection port 13 is provided, the connection block 43 connected to the screw guide rail structure 42 can extend out of the base 1 through the connection port 13.
Further, the third mounting location 5 is disposed on the connection block 43, and the third mounting location 5 is used for mounting the eddy current displacement sensor 51, and when the screw guide rail structure 42 drives the connection block 43 to perform linear reciprocating motion, the third mounting location 5 disposed on the connection block 43 will also perform linear reciprocating motion synchronously.
It will be appreciated by those skilled in the art that in accordance with JJF1305-2011, calibration specification for linear displacement sensor, when calibrating the eddy current displacement sensor 51, the sensor is installed in accordance with abbe's principle, and 11 calibration points are required to be approximately uniformly distributed in the output range. Therefore, the first mounting location 2, the second mounting location 3 and the third mounting location 5 should be on the same straight line.
In a preferred embodiment, the connection port 13 has a rectangular structure, so as to adapt to the linear reciprocating motion of the third installation site 5.
In a more preferred embodiment, the connection port 13 is disposed along the length direction of the base 1 and parallel to the direction in which the screw guide rail structure 42 is disposed, so as to ensure that the third mounting position 5 is always in the same line with the first mounting position 2 and the second mounting position 3 when performing the linear reciprocating motion.
Further, the electric vortex displacement sensor 51 arranged on the third installation position 5 is driven to displace through the screw guide rail structure 42, so that the first installation position 2, the second installation position 3 and the third installation position 5 are ensured to be on the same straight line.
It will be appreciated by those skilled in the art that the rotating hand wheel 41 can drive the connecting block 43 to displace along the setting direction of the connecting port 13 through the screw rod structure 42, and of course, the position of the connecting block 43 can be adjusted by adjusting the rotation number of the hand wheel 41, so as to adjust the distance between the eddy current displacement sensor 51 and the baffle 31, and an operator can select 11 calibration points uniformly distributed in the output range by controlling the rotation number of the rotating hand wheel 41.
In a preferred embodiment, the connection block 43 has a T-shaped structure, and the protruding parts on two sides of the top of the connection block are abutted against the top of the base 1, so as to reduce the inclination of the connection block 43 and the offset of the third installation position 5.
Finally, it should be noted that: the embodiment of the utility model is disclosed only as a preferred embodiment of the utility model, and is only used for illustrating the technical scheme of the utility model, but not limiting the technical scheme; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme recorded in the various embodiments can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (5)
1. An eddy current displacement sensor auxiliary calibration frock for calibrate after installation laser interferometer and eddy current displacement sensor, its characterized in that includes:
the base is arranged on the first installation position and the second installation position on the base, the adjusting component is arranged in the base, and the third installation position is connected with the adjusting component;
the first installation position is used for fixing the laser interferometer host, the second installation position is used for fixing the baffle plate, the third installation position is used for installing the eddy current displacement sensor, and the first installation position, the second installation position and the third installation position are positioned on the same straight line;
the base is of a cuboid hollow structure, a hollow part of the base is a containing cavity for containing the adjusting component, and a connecting port is formed in the top of the base;
the adjusting component comprises a hand wheel, a screw guide rail structure connected with the hand wheel and a connecting block connected with the screw guide rail;
the connecting block extends out of the base through the connecting port;
the third installation position is arranged on the connecting block.
2. The auxiliary calibration fixture for the eddy current displacement sensor according to claim 1, wherein the hand wheel is located outside one side of the base.
3. The auxiliary calibration fixture for the eddy current displacement sensor according to claim 1, wherein the connecting port is of a rectangular structure.
4. The auxiliary calibration fixture for the eddy current displacement sensor according to claim 3, wherein the connecting port is arranged along the length direction of the base and is parallel to the arrangement direction of the screw guide rail structure.
5. The auxiliary calibration fixture for the eddy current displacement sensor according to claim 1, wherein the connecting block is of a T-shaped structure, and protruding parts on two sides of the top of the connecting block are abutted against the top of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321154382.4U CN220187628U (en) | 2023-05-15 | 2023-05-15 | Auxiliary calibration tool for eddy current displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321154382.4U CN220187628U (en) | 2023-05-15 | 2023-05-15 | Auxiliary calibration tool for eddy current displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220187628U true CN220187628U (en) | 2023-12-15 |
Family
ID=89100882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321154382.4U Active CN220187628U (en) | 2023-05-15 | 2023-05-15 | Auxiliary calibration tool for eddy current displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220187628U (en) |
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2023
- 2023-05-15 CN CN202321154382.4U patent/CN220187628U/en active Active
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