CN201514229U - Vortex flow sensor check table - Google Patents
Vortex flow sensor check table Download PDFInfo
- Publication number
- CN201514229U CN201514229U CN2009202044704U CN200920204470U CN201514229U CN 201514229 U CN201514229 U CN 201514229U CN 2009202044704 U CN2009202044704 U CN 2009202044704U CN 200920204470 U CN200920204470 U CN 200920204470U CN 201514229 U CN201514229 U CN 201514229U
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- CN
- China
- Prior art keywords
- main body
- slide plate
- flow sensor
- current sensor
- eddy current
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a vortex flow sensor check table, which is used for checking the sensitivity of a probe of a vortex flow sensor, wherein the vortex flow sensor check table includes a table frame main body and a slide plate; the slide plate is connected with the table frame main body, can has linear sliding relative to the table frame main body, and is used for mounting the probe of the vortex flow sensor; an object to be sensed in the aspect of distance is arranged in the linear sliding direction of the slide plate on the table frame main body; and a drive screw rod is further arranged on the table frame main body and is used for diving the linear sliding of the slide plate and adjusting the distance between the probe of the vortex flow sensor on the slide plate and the object to be sensed. The utility model reads the displacement count of the object to be sensed in the aspect of distance and compares with the variation value of the sensing distance of the probe of the vortex flow sensor, so as to check the sensitivity of the probe of the vortex flow sensor, and greatly improve the check precision; and the check result is reliable, the conditions of the operating environment are relaxed, and the working efficiency is improved.
Description
Technical field
The utility model relates to a kind of calibration equipment, relates in particular to a kind of eddy current sensor checking table.
Background technology
At present; the overhaul of all will once reloading every year of the steam turbine of many large-scale power stations; and in overhaul; all to carry out the sensitivity verification to the eddy current sensor vibration probe of steam turbine at every turn; owing to there is not specific purpose tool during verification; so the precision of being popped one's head in by verification not only is difficult to guarantee, and regular meeting's delay duration, process dallies over one's work.
Therefore, prior art haves much room for improvement and improves.
The utility model content
The technical problems to be solved in the utility model is, at the above-mentioned defective of prior art, provides a kind of checking table that can improve eddy current sensor probe sensitivity detection rates and accuracy rate.
The technical scheme that its technical matters that solves the utility model adopts is:
Construct a kind of eddy current sensor checking table, be used to detect the sensitivity of eddy current sensor probe, wherein, comprise the stand main body, also comprise connecting described stand main body, and can described relatively stand main body make the slide plate that is used to install the eddy current sensor probe of linear slide;
The linear slide direction of the described slide plate in described stand main body upper edge is provided with the body that is detected that can carry out range observation;
Also be provided with drive screw on the described stand main body, be used to drive described slide plate and make linear slide, adjust the eddy current sensor probe and the described distance that is detected between the body that are installed on the described slide plate.
Checking table described in the utility model, wherein, the described body that is detected is a micrometer caliper.
Checking table described in the utility model, wherein, described stand body surfaces is vertically arranged with the linearity groove; Described slide plate bottom is provided with the slide block that is linked in the described linearity groove, and described slide plate flexibly connects by described slide block and described linearity groove.
Checking table described in the utility model, wherein, the drive link of described drive screw passes described linearity groove, and fixedly connected described stand main body, and the described slide block that is in transmission connection are used to drive described slide plate and make linear slide along described linearity groove.
The utility model is by tested probe fixing on the controlled trickle adjustment checking table and the distance between the measurer, measure the sensitivity of tested eddy current sensor probe, checking precision is increased substantially, and testing result is very stable, the condition of operating environment is relaxed simultaneously, be not subjected to the influence of external environment, operation has at any time improved work efficiency.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the eddy current sensor checking table basic block diagram of the utility model embodiment;
Fig. 2 is the eddy current sensor checking table user mode structural drawing of the utility model embodiment.
Embodiment
Below in conjunction with diagram, preferred embodiment of the present utility model is described in detail.
The eddy current sensor checking table of the utility model embodiment, be used to detect the sensitivity of the eddy current sensor probe of steam turbine, its structural drawing as shown in Figure 1, comprise stand main body 100, stand main body 100 is provided with the slide plate 200 that stand main body 100 is relatively made linear slide, can be provided with threaded hole 201 on the slide plate 200, be used to install eddy current sensor probe 202.On stand main body 100, along the linear slide direction of slide plate 200 be provided with can carry out range observation be detected body 120, as shown in Figure 2.On stand main body 100, also be set with drive screw 300, be used to drive slide plate 200 and on stand main body 100, make linear slide, be installed in the eddy current sensor probe 202 on the slide plate 200 and be detected distance between the test surface of body 120 with adjustment, by reading the displacement counting that is detected body that can carry out range observation, and compare, thereby detect the sensitivity of eddy current sensor probe 202 with the distance of reaction changing value of eddy current sensor probe 202.
In the present embodiment, stand main body 100 surfaces can vertical or horizontal setting linear recess always, be set with the slide block that is linked in the described linearity groove in slide plate 200 bottoms, slide plate flexibly connects by slide block and linearity groove.The effect that vertical or horizontal linearity groove is set is that assurance slide plate 200 is made linear slide on stand main body 100, to guarantee accurate the stable of numerical value that reach of final detection result.Be detected the end that body 120 can be arranged on the stand main body 100 linearity groove, all be on the straight line at linearity groove place with the eddy current sensor probe 202 that is installed on the slide block.Drive screw 300 specifically comprises handle portion 301 and the drive link 302 that is connected handle portion, and the drive link 302 of drive screw 300 passes the linearity groove, is fixedly connected on the stand main body 100, as shown in Figure 2.And drive link 302 passes and the slide block of slide plate 200 bottoms that are in transmission connection, be linked in slide block in the linearity groove by drive, drive slide plate 200 and make linear slide, be installed in the eddy current sensor probe 202 on the slide plate 200 and be detected air line distance between the body 120 with adjustment along the linearity groove.
Because during the eddy current sensor probe work of steam turbine, the test surface that is detected is generally ferromagnetic material, therefore in the present embodiment, the preferred micrometer caliper with ferromagnetic test surface that adopts is as being detected body 120, be installed in eddy current sensor probe 202 on the slide plate 200 to the distance of the face that is detected of micrometer caliper by adjustment, detect the sensitivity of eddy current sensor probe 202.When being detected body and being micrometer caliper, can be by the trimming handle adjusting eddy current sensor probe 202 of micrometer caliper and the fine distance between the ferromagnetic test surface, by reading the displacement counting that is detected body that can carry out range observation, and compare, thereby detect the sensitivity of eddy current sensor probe 202 with the distance of reaction changing value of eddy current sensor probe 202.Adopt the benefit of micrometer caliper to be, the displacement of test can be accurate to hundredths, thousand fens positions, or more accurate, to guarantee accurate detection to the sensitivity of eddy current sensor probe.
In the present embodiment, when detecting the sensitivity of eddy current sensor probe 202, need to be connected with simultaneously the voltage display device thereon, to demonstrate the induction degree that it changes fine distance, if induction is correct, should be able to demonstrate on the display device and the identical displacement data of test surface displacement that is detected body.Also can adopt other to have the object of ferromagnetic test surface.
In sum, the utility model is by tested probe fixing on the controlled trickle adjustment checking table and the distance between the measurer, by reading the displacement counting that is detected body that can carry out range observation, and compare, thereby detect the sensitivity of eddy current sensor probe with the distance of reaction changing value of eddy current sensor probe.Checking precision is increased substantially, and testing result is very stable, the condition of operating environment is relaxed simultaneously, is not subjected to the influence of external environment, and operation has at any time improved work efficiency.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (4)
1. eddy current sensor checking table, be used to detect the sensitivity of eddy current sensor probe, it is characterized in that, comprise stand main body (100), also comprise the slide plate (200) that is used to install eddy current sensor probe (202) that connects described stand main body (100) and on described stand main body (100), make linear slide;
The linear slide direction of the described slide plate in described stand main body upper edge (200) be provided with can carry out range observation be detected body (120);
Also be provided with drive screw (300) on the described stand main body, be used to drive described slide plate (200) and make linear slide, adjust the eddy current sensor probe (202) and the described distance that is detected between the body (120) that are installed on the described slide plate (200).
2. checking table according to claim 1 is characterized in that, the described body (120) that is detected is a micrometer caliper.
3. checking table according to claim 1 and 2 is characterized in that, described stand main body (100) surface is provided with the linearity groove; Described slide plate (200) bottom is provided with the slide block that is linked in the described linearity groove, and described slide plate (200) flexibly connects by described slide block and described linearity groove.
4. checking table according to claim 3, it is characterized in that, the drive link (302) of described drive screw (300) passes described linearity groove, fixedly connected described stand main body (100) and the described slide block that is in transmission connection, and is used to drive described slide plate (200) and makes linear slide along described linearity groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202044704U CN201514229U (en) | 2009-09-03 | 2009-09-03 | Vortex flow sensor check table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202044704U CN201514229U (en) | 2009-09-03 | 2009-09-03 | Vortex flow sensor check table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514229U true CN201514229U (en) | 2010-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202044704U Expired - Lifetime CN201514229U (en) | 2009-09-03 | 2009-09-03 | Vortex flow sensor check table |
Country Status (1)
| Country | Link |
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| CN (1) | CN201514229U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252710A (en) * | 2011-06-21 | 2011-11-23 | 天津奥美自动化系统有限公司 | Hall element detection device |
| CN103134450A (en) * | 2011-11-24 | 2013-06-05 | 昆山鑫昌泰模具科技有限公司 | Cursor detection device capable of accurately detecting long workpiece |
| CN103411744A (en) * | 2013-07-26 | 2013-11-27 | 浙江大学 | Electric eddy transducer dynamic calibration device |
| CN103791806A (en) * | 2014-02-25 | 2014-05-14 | 福建宁德核电有限公司 | Rapid adjustment and installation mechanism for eddy current displacement sensor |
| CN104897025A (en) * | 2014-03-04 | 2015-09-09 | 江苏核电有限公司 | Steam turbine differential expansion and valve position instrument verifying device |
| CN114187750A (en) * | 2021-11-13 | 2022-03-15 | 国网辽宁省电力有限公司阜新供电公司 | Sensitivity detection device for near-electricity alarm |
-
2009
- 2009-09-03 CN CN2009202044704U patent/CN201514229U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252710A (en) * | 2011-06-21 | 2011-11-23 | 天津奥美自动化系统有限公司 | Hall element detection device |
| CN103134450A (en) * | 2011-11-24 | 2013-06-05 | 昆山鑫昌泰模具科技有限公司 | Cursor detection device capable of accurately detecting long workpiece |
| CN103134450B (en) * | 2011-11-24 | 2016-04-20 | 昆山鑫昌泰模具科技有限公司 | Precisely can detect the cursor detecting device of long dimension workpiece |
| CN103411744A (en) * | 2013-07-26 | 2013-11-27 | 浙江大学 | Electric eddy transducer dynamic calibration device |
| CN103411744B (en) * | 2013-07-26 | 2016-01-13 | 浙江大学 | Electric eddy transducer dynamic calibration device |
| CN103791806A (en) * | 2014-02-25 | 2014-05-14 | 福建宁德核电有限公司 | Rapid adjustment and installation mechanism for eddy current displacement sensor |
| CN104897025A (en) * | 2014-03-04 | 2015-09-09 | 江苏核电有限公司 | Steam turbine differential expansion and valve position instrument verifying device |
| CN104897025B (en) * | 2014-03-04 | 2019-05-17 | 江苏核电有限公司 | A kind of steam turbine differential expansion, valve position instrument calibration device |
| CN114187750A (en) * | 2021-11-13 | 2022-03-15 | 国网辽宁省电力有限公司阜新供电公司 | Sensitivity detection device for near-electricity alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100623 |