CN102927897A - Mechanical deformation measuring method - Google Patents
Mechanical deformation measuring method Download PDFInfo
- Publication number
- CN102927897A CN102927897A CN2012104741704A CN201210474170A CN102927897A CN 102927897 A CN102927897 A CN 102927897A CN 2012104741704 A CN2012104741704 A CN 2012104741704A CN 201210474170 A CN201210474170 A CN 201210474170A CN 102927897 A CN102927897 A CN 102927897A
- Authority
- CN
- China
- Prior art keywords
- potentiometer
- spring
- slide head
- measurement method
- machinery
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a mechanical deformation measuring method, which comprises a drive rod, a spring, a sliding head and a potentiometer W. The method provided by the invention is used for on-line measuring of mechanical deformation in the power industry; and the method has advantages of high precision and low cost.
Description
Technical field
The invention belongs to power industry mechanical deformation fields of measurement, particularly a kind of distortion measurement method of machinery.
Background technology
The deformation that produces in the plant equipment work can affect the normal operation of machinery to a certain extent.In the prior art, measurement for plant equipment deformation is not very desirable, so sensor must be installed on the measured parts that are in the work, and sensor output has the defectives such as signal is little, noise is large, how sensor signal is optimized disposal route, is the key of distortion measurement.
Summary of the invention
Order of the present invention is to provide a kind of On-line Measuring Method for the power industry mechanical deformation.
The technical scheme that realizes above-mentioned purpose is: a kind of distortion measurement method of machinery, comprise drive link, spring, slide head and potentiometer W, wherein:
Described spring one end is connected with tested machinery by drive link, and the other end connects the described slide head of described potentiometer, and described potentiometer two ends are connected with power cathode-V with positive source+V respectively, output signal out on the slide head.
The distortion measurement method of above-mentioned a kind of machinery, wherein, described acting force of the spring is directly proportional with the mechanical deformation displacement.
The distortion measurement method of above-mentioned a kind of machinery, wherein, the described slide head of described potentiometer is slided by the reacting force of spring, and the offset from zero distance of positions is from being directly proportional with described spring reaction power.
The distortion measurement method of above-mentioned a kind of machinery, wherein, described potentiometer belongs to WW POT, and conductor length is directly proportional with resistance.
The distortion measurement method of above-mentioned a kind of machinery, wherein, the output of the described slide head of described potentiometer and described slide head skew null position are directly proportional.
The invention has the beneficial effects as follows: be used for the on-line measurement of power industry mechanical deformation, have precision height, advantage that cost is low.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
See also Fig. 1, provided a kind of distortion measurement method of machinery among the figure, it comprises drive link, spring, slide head and potentiometer W.
Spring one end is connected with tested machinery by drive link, and the other end connects the slide head of described potentiometer, and drive link elastic deformation coefficient guarantees that far below tested machinery the deformation of tested machinery can be transferred to spring exactly.
The potentiometer two ends are connected with power cathode-V with positive source+V respectively, output signal out on the slide head.
When the Horizontal Deformation of tested machinery is Δ X, the Horizontal Deformation of spring is Δ X, obtains acting force of the spring by Hooke's law to be:
F=K* Δ X formula 1
The potentiometer slide head is subjected to the reacting force f ' slip of spring, and the skew zero-bit has:
F '=K ' * Δ y formula 2
Potentiometer belongs to WW POT, and conductor length is directly proportional with resistance, whole potentiometer resistance R, and conductor length is y, the resistance that Δ y is corresponding is:
Δ R=R* (Δ y/y) formula 3
The voltage of out is:
Out=Δ R/R*[(+V)-(V)] formula 4
Can be obtained the linear relationship of output signal out and tested mechanical deformation by formula 4.
Principle of the present invention is: elastic deformation and wire resistor are linear function, by Newton third law, acting force and reacting force equate, can say that the deformational displacement linear transformation becomes change in voltage, the directly deformation of measurement mechanical has guaranteed real-time, stability and accuracy that the power industry mechanical deformation is measured.
Below embodiment has been described in detail the present invention by reference to the accompanying drawings, and those skilled in the art can make the many variations example to the present invention according to the above description.Thereby some details among the embodiment should not consist of limitation of the invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (5)
1. the distortion measurement method of a machinery is characterized in that, it comprises drive link, spring, slide head and potentiometer W, wherein:
Described spring one end is connected with tested machinery by drive link, and the other end connects the described slide head of described potentiometer, and described potentiometer two ends are connected with power cathode-V with positive source+V respectively, output signal out on the slide head.
2. the distortion measurement method of described a kind of machinery according to claim 1 is characterized in that described acting force of the spring is directly proportional with the mechanical deformation displacement.
3. the distortion measurement method of described a kind of machinery according to claim 1 is characterized in that the described slide head of described potentiometer is slided by the reacting force of spring, and the offset from zero distance of positions is from being directly proportional with described spring reaction power.
4. the distortion measurement method of described a kind of machinery according to claim 1 is characterized in that described potentiometer belongs to WW POT, and conductor length is directly proportional with resistance.
5. the distortion measurement method of described a kind of machinery according to claim 1 is characterized in that, the output of the described slide head of described potentiometer and described slide head skew null position are directly proportional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104741704A CN102927897A (en) | 2012-11-21 | 2012-11-21 | Mechanical deformation measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104741704A CN102927897A (en) | 2012-11-21 | 2012-11-21 | Mechanical deformation measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102927897A true CN102927897A (en) | 2013-02-13 |
Family
ID=47642757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104741704A Pending CN102927897A (en) | 2012-11-21 | 2012-11-21 | Mechanical deformation measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927897A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651223A (en) * | 2016-03-02 | 2016-06-08 | 陈廷 | Building-material height measuring instrument and method |
| CN105758351A (en) * | 2016-03-02 | 2016-07-13 | 张远程 | Length measurement device and method based on force-electricity conversion sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050183499A1 (en) * | 2000-08-18 | 2005-08-25 | Cooper Cameron Corporation | Method and device for measuring a path that has been covered |
| DK1463076T3 (en) * | 2003-03-27 | 2011-02-14 | Eaton Ind Gmbh | Method of activating an electro-mechanical position switch |
| CN102401625A (en) * | 2010-09-19 | 2012-04-04 | 成都易生玄科技有限公司 | Slide rheostat positioning method for light transmission channel |
-
2012
- 2012-11-21 CN CN2012104741704A patent/CN102927897A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050183499A1 (en) * | 2000-08-18 | 2005-08-25 | Cooper Cameron Corporation | Method and device for measuring a path that has been covered |
| DK1463076T3 (en) * | 2003-03-27 | 2011-02-14 | Eaton Ind Gmbh | Method of activating an electro-mechanical position switch |
| CN102401625A (en) * | 2010-09-19 | 2012-04-04 | 成都易生玄科技有限公司 | Slide rheostat positioning method for light transmission channel |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651223A (en) * | 2016-03-02 | 2016-06-08 | 陈廷 | Building-material height measuring instrument and method |
| CN105758351A (en) * | 2016-03-02 | 2016-07-13 | 张远程 | Length measurement device and method based on force-electricity conversion sensor |
| CN108469240A (en) * | 2016-03-02 | 2018-08-31 | 赵红艳 | Length measuring instrument and measurement method based on power electricity conversion sensor |
| CN108507514A (en) * | 2016-03-02 | 2018-09-07 | 张远程 | Length measuring instrument and measurement method based on power electricity conversion sensor |
| CN105758351B (en) * | 2016-03-02 | 2018-11-06 | 张远程 | Length measuring instrument and measurement method based on power electricity conversion sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201392162Y (en) | Upper tooth or tooth slot position detecting tool on gear shaft | |
| CN204128494U (en) | A kind of Metal Surface Roughness measurement mechanism | |
| CN103604338A (en) | Pipe length measuring device | |
| CN204405509U (en) | Digital output bit moves sensor-type high-frequency reciprocating tester | |
| CN102927897A (en) | Mechanical deformation measuring method | |
| CN203981104U (en) | A kind of eddy current displacement sensor static characteristics calibration equipment | |
| CN205228499U (en) | Measurement device for be used for current vortex sensor | |
| CN102998038B (en) | A kind of space three-dimensional high-accuracy mechanical type micro force sensor | |
| CN202692950U (en) | Fiber bragg grating sensing device applied to concrete pile strain monitoring | |
| CN204100960U (en) | Air preheater fanning strip actuating mechanism displacement detector | |
| CN104764393A (en) | High-precision magnetostrictive displacement sensor | |
| CN103808244A (en) | Magnetic encoder for position measurement | |
| CN201688806U (en) | Special measuring tool for measuring aperture of stepped holes | |
| CN203163691U (en) | Grating displacement measuring device | |
| CN104422370A (en) | Measuring tool for outer circular arc radius | |
| CN203518906U (en) | Measuring tool for outer circular arc radius | |
| CN203240972U (en) | Multifunctional micrometer | |
| CN204269092U (en) | Clamped-in style hollow shaft encoder | |
| CN202582482U (en) | High-precision angular displacement sensor | |
| CN103727909A (en) | Precision measuring instrument of machine tool | |
| CN205209666U (en) | Inductance type pressure sensor | |
| CN105222708A (en) | A kind of beam with both ends built-in formula 3 D measuring instrument | |
| CN204988137U (en) | Deep hole clearance groove measuring tool | |
| CN204612657U (en) | High precision magnetostrictive displacement sensor | |
| CN203337098U (en) | Dynamic parameter acquisition device for field three-coordinate measuring machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |