CN203981104U - A kind of eddy current displacement sensor static characteristics calibration equipment - Google Patents
A kind of eddy current displacement sensor static characteristics calibration equipment Download PDFInfo
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- CN203981104U CN203981104U CN201420287191.XU CN201420287191U CN203981104U CN 203981104 U CN203981104 U CN 203981104U CN 201420287191 U CN201420287191 U CN 201420287191U CN 203981104 U CN203981104 U CN 203981104U
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- test specimen
- sliding bar
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- piece sliding
- screw micrometer
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 32
- 230000003068 static effect Effects 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 64
- 238000012795 verification Methods 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model discloses a kind of eddy current displacement sensor static characteristics calibration equipment, this device comprises: base, sensor fixed support, verification test specimen piece, test specimen piece sliding bar, test specimen piece sliding bar support, screw micrometer, screw micrometer fixed support, sliding bar back-moving spring; Described sensor fixed support, test specimen piece sliding bar support, screw micrometer fixed support are fixed on base, and described screw micrometer is fixed on screw micrometer fixed support; Described verification is connected with test specimen piece sliding bar with test specimen piece; The microclearance of described test specimen piece sliding bar is arranged on the endoporus of described test specimen piece sliding bar support; A fixture block is installed in the end of described test specimen piece sliding bar; Described sliding bar back-moving spring is arranged between described fixture block and test specimen piece sliding bar support; Described screw micrometer and described fixture block near, but do not connect.
Description
Technical field
The utility model relates to measurement mechanism verification field, is specifically related to a kind of eddy current displacement sensor static characteristics calibration equipment.
Background technology
Eddy current displacement sensor is used for measuring the Relative Vibration, axial displacement, bias of rotating machinery shaft etc. and characterizes the parameter of rotating machinery safety case.In one manufacturing enterprise, generally there are several to tens of rotating machineries, a rotating machinery is how many according to bearing, number cover current vortex sensor is installed at least, tens of cover current vortex sensors are installed at most, for ensure that sensor measurement accuracy ensures device security, needs current vortex sensor to carry out verification between rotating machinery turn(a)round simultaneously.
Existing eddy current displacement sensor static characteristics calibration equipment only can be realized once a set of verification, and scene often need be to cover sensor calibrations up to a hundred, and workload is large, and efficiency is low, and the work period is long.
Utility model content
Technical problem to be solved in the utility model is that existing eddy current displacement sensor static characteristics calibration equipment only can be realized once a set of verification, and workload is large, and efficiency is low, and the work period is long.
For this purpose, the utility model proposes a kind of eddy current displacement sensor static characteristics calibration equipment, this device comprises: base, sensor fixed support, verification test specimen piece, test specimen piece sliding bar, test specimen piece sliding bar support, screw micrometer, screw micrometer fixed support, sliding bar back-moving spring;
Described sensor fixed support, test specimen piece sliding bar support, screw micrometer fixed support are fixed on base, and described screw micrometer is fixed on screw micrometer fixed support;
Described verification is connected with test specimen piece sliding bar with test specimen piece;
The microclearance of described test specimen piece sliding bar is arranged on the endoporus of described test specimen piece sliding bar support;
A fixture block is installed in the end of described test specimen piece sliding bar;
Described sliding bar back-moving spring is arranged between described fixture block and test specimen piece sliding bar support;
Described screw micrometer and described fixture block near, but do not connect.
Wherein, the measurement range 0-25.4mm of described screw micrometer.
Wherein, described verification adopts AISI 4140 alloy steels with test specimen piece.
Wherein, described test specimen piece sliding bar be shaped as rectangular parallelepiped.
Wherein, described verification is connected to and is rigidly connected with test specimen piece and test specimen piece sliding bar.
Than prior art, the beneficial effects of the utility model are: can carry out verification to the eddy current displacement sensor of quadruplet (diameter is identical) of the same type simultaneously, improve work efficiency, shorten the work period, the end diameter of eddy current displacement sensor comprises following three kinds: Φ 8, Φ 11, Φ 14.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 shows the structural drawing of the eddy current displacement sensor static characteristics calibration equipment of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.
The utility model embodiment proposes a kind of eddy current displacement sensor static characteristics calibration equipment, this device comprises: base (1), sensor fixed support (2), verification test specimen piece (5), test specimen piece sliding bar (6), test specimen piece sliding bar support (7), screw micrometer (9), screw micrometer fixed support (8), sliding bar back-moving spring (10);
It is upper that described sensor fixed support (2), test specimen piece sliding bar support (7), screw micrometer fixed support (8) are fixed on base (1), and described screw micrometer (9) is fixed on screw micrometer fixed support (8);
Described verification is connected with test specimen piece sliding bar (6) with test specimen piece (5);
The microclearance of described test specimen piece sliding bar (6) is arranged on the endoporus of described test specimen piece sliding bar support (7), ensures that test specimen piece sliding bar (6) can be free to slide at the endoporus of test specimen piece sliding bar support (7); Described test specimen piece sliding bar (6) be shaped as rectangular parallelepiped, can prevent that test specimen piece slide bar (6) from rotating in the time sliding.
A fixture block (12) is installed in the end of described test specimen piece sliding bar (6);
Described sliding bar back-moving spring (10) is arranged between described fixture block (12) and test specimen piece sliding bar support (7);
Described screw micrometer (9) and described fixture block (12) near, but do not connect.
Wherein, the measurement range 0-25.4mm of described screw micrometer (9).
Wherein, described verification adopts AISI4140 alloy steel with test specimen piece (5).
Wherein, for described verification, test specimen piece (5) is rigidly connected with being connected to of test specimen piece sliding bar (6).
Described in the present embodiment, the checking process of eddy current displacement sensor static characteristics calibration equipment is as follows:
The first step, (diameter is identical) of the same type quadruplet eddy current displacement sensor (4) is fixed on sensor fixed support (2) by screw (3) respectively, one in optional following three kinds of the diameter of described eddy current displacement sensor (4): Φ 8, Φ 11, Φ 14.
Second step, adjusting verification test specimen piece (5) is the starting point of linear sensor working range with the end distance of eddy current displacement sensor (4).
Adjustment process is: when eddy current displacement sensor (4) end and verification bigger than normal by test specimen piece (5) distance, screw micrometer (9) turns clockwise, the core bar (11) of screw micrometer (9) moves to the direction of eddy current displacement sensor (4), promote verification test specimen piece (5) by test specimen piece sliding bar (6) mobile to eddy current displacement sensor (4), thereby reduce the distance of eddy current displacement sensor (4) and verification test specimen piece (5);
When eddy current displacement sensor (4) end and verification less than normal by test specimen piece (5) distance, be rotated counterclockwise screw micrometer (9), the core bar (11) of screw micrometer (9) is to moving away from the direction of eddy current displacement sensor (4), promote test specimen piece sliding bar (6) away from eddy current displacement sensor (4) by slide bar back-moving spring (10), thereby increase the distance of eddy current displacement sensor (4) and verification test specimen piece (5).
The 3rd step, the whole linear working range of eddy current displacement sensor (4) is divided into 10 sections, the distance that progressively increases eddy current displacement sensor (4) and verification test specimen piece (5) by being rotated counterclockwise screw micrometer (9) is 1/10 linear working range, 2/10 linear working range, until measured whole linear working range, corresponding each distance, a voltage of eddy current displacement sensor (4) output, 10 magnitudes of voltage of output are calculated to the linearity and the sensitivity error of eddy current displacement sensor (4) by least square method, thereby judge that whether qualified eddy current displacement sensor (4) is.
The utility model embodiment disclosed a kind of eddy current displacement sensor static characteristics calibration equipment, has solved the problem of the multiple sensors of existing apparatus verification simultaneously, increases work efficiency, and implementing process is simple, and expense is cheap, effective, workable.
Although described by reference to the accompanying drawings embodiment of the present utility model, but those skilled in the art can make various modifications and variations in the situation that not departing from spirit and scope of the present utility model, and such amendment and modification all fall into by within claims limited range.
Claims (5)
1. an eddy current displacement sensor static characteristics calibration equipment, it is characterized in that, this device comprises: base, sensor fixed support, verification test specimen piece, test specimen piece sliding bar, test specimen piece sliding bar support, screw micrometer, screw micrometer fixed support, sliding bar back-moving spring;
Described sensor fixed support, test specimen piece sliding bar support, screw micrometer fixed support are fixed on base, and described screw micrometer is fixed on screw micrometer fixed support;
Described verification is connected with test specimen piece sliding bar with test specimen piece;
The microclearance of described test specimen piece sliding bar is arranged on the endoporus of described test specimen piece sliding bar support;
A fixture block is installed in the end of described test specimen piece sliding bar;
Described sliding bar back-moving spring is arranged between described fixture block and test specimen piece sliding bar support;
Described screw micrometer and described fixture block near, but do not connect.
2. device according to claim 1, is characterized in that, the measurement range 0-25.4mm of described screw micrometer.
3. device according to claim 1, is characterized in that, described verification adopts AISI 4140 alloy steels with test specimen piece.
4. device according to claim 1, is characterized in that, described test specimen piece sliding bar be shaped as rectangular parallelepiped.
5. device according to claim 1, is characterized in that, described verification is connected to and is rigidly connected with test specimen piece and test specimen piece sliding bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287191.XU CN203981104U (en) | 2014-06-03 | 2014-06-03 | A kind of eddy current displacement sensor static characteristics calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287191.XU CN203981104U (en) | 2014-06-03 | 2014-06-03 | A kind of eddy current displacement sensor static characteristics calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203981104U true CN203981104U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420287191.XU Expired - Lifetime CN203981104U (en) | 2014-06-03 | 2014-06-03 | A kind of eddy current displacement sensor static characteristics calibration equipment |
Country Status (1)
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| CN (1) | CN203981104U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225655A (en) * | 2016-07-04 | 2016-12-14 | 上海应用技术学院 | Measurement switching device based on current vortex sensor |
| CN106892355A (en) * | 2017-04-14 | 2017-06-27 | 上海海事大学 | A kind of double-lifting double-lifting-applibridge bridge crane tilt angle measuring device based on eddy current sensor |
| CN108981893A (en) * | 2018-07-27 | 2018-12-11 | 华电电力科学研究院有限公司 | A kind of eddy current sensor dynamic static characteristic verification rack and method of calibration |
| CN116046045A (en) * | 2023-01-28 | 2023-05-02 | 宜科(天津)电子有限公司 | Calibration method of inductive sensor |
-
2014
- 2014-06-03 CN CN201420287191.XU patent/CN203981104U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225655A (en) * | 2016-07-04 | 2016-12-14 | 上海应用技术学院 | Measurement switching device based on current vortex sensor |
| CN106225655B (en) * | 2016-07-04 | 2018-10-12 | 上海应用技术学院 | Measurement switching device based on current vortex sensor |
| CN106892355A (en) * | 2017-04-14 | 2017-06-27 | 上海海事大学 | A kind of double-lifting double-lifting-applibridge bridge crane tilt angle measuring device based on eddy current sensor |
| CN108981893A (en) * | 2018-07-27 | 2018-12-11 | 华电电力科学研究院有限公司 | A kind of eddy current sensor dynamic static characteristic verification rack and method of calibration |
| CN108981893B (en) * | 2018-07-27 | 2023-07-25 | 华电电力科学研究院有限公司 | Dynamic and static characteristic verification bracket and method for electric vortex sensor |
| CN116046045A (en) * | 2023-01-28 | 2023-05-02 | 宜科(天津)电子有限公司 | Calibration method of inductive sensor |
| CN116046045B (en) * | 2023-01-28 | 2023-06-13 | 宜科(天津)电子有限公司 | Calibration method of inductive sensor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |