CN103322920B - A kind of measuring method of expansion of laser light displacement sensor measurement range - Google Patents
A kind of measuring method of expansion of laser light displacement sensor measurement range Download PDFInfo
- Publication number
- CN103322920B CN103322920B CN201310213440.0A CN201310213440A CN103322920B CN 103322920 B CN103322920 B CN 103322920B CN 201310213440 A CN201310213440 A CN 201310213440A CN 103322920 B CN103322920 B CN 103322920B
- Authority
- CN
- China
- Prior art keywords
- test
- displacement sensor
- isosceles triangle
- laser displacement
- object under
- 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.)
- Active
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 72
- 238000005259 measurement Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 79
- 230000005693 optoelectronics Effects 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 4
- 238000010998 test method Methods 0.000 description 2
- 241000145637 Lepturus Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
Abstract
A measuring method for expansion of laser light displacement sensor measurement range, there is laser displacement sensor light-sensitive surface on limit to test isosceles triangle two waist, the scope of object under test straight-line displacement is less than or equal to L, laser displacement sensor range is S ˊ, test isosceles triangle is arranged on object under test, test isosceles triangle base is parallel with object under test movement locus, laser displacement sensor is fixed on the top of test isosceles triangle, laser displacement sensor is fixed on the centre position in test isosceles triangle moving range, laser displacement sensor direction of measurement is perpendicular to the base of test isosceles triangle, the height on laser displacement sensor distance test isosceles triangle base is S and S≤S ˊ, laser displacement sensor can accurately measure the height H between test point to isosceles triangle hypotenuse, optoelectronic switch is arranged on the 1/2L place of distance object under test motion starting point.Structure of the present invention is simple, result accurate, fast response time, test specification are wide.
Description
Technical field
The present invention relates to laser displacement sensor technology, especially a kind of measuring method of expansion of laser light displacement sensor measurement range.
Background technology
Laser displacement sensor can the change such as position, displacement of accurate non-cpntact measurement testee, and laser displacement sensor is widely used in every field with advantages such as its linearity is good, the response time is short, high-frequency, high precision.
Laser displacement sensor because of model its measurement range different also different, then cannot measure when measured body exceeds the range of present laser displacement transducer, must change the laser displacement sensor that range is higher, but laser displacement sensor price is relatively high, then can causes great waste.On the other hand, when needs survey two kinds of different displacements with same laser displacement sensor, wide range need be adopted to meet the demands, but when surveying thin tail sheep with the laser displacement sensor of wide range, resolution is low, low precision simultaneously.
Summary of the invention
In order to solve the laser displacement sensor problem that range applicability is poor when measuring ohject displacement, the invention provides the measuring method of the stronger expansion of laser light displacement sensor measurement range of a kind of applicability.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of measuring method of expansion of laser light displacement sensor measurement range, the proving installation realizing this method of testing comprises test isosceles triangle device, described test isosceles triangle device bottom side length is L, be highly S, the angle on waist and base is β, and there is laser displacement sensor light-sensitive surface on described test isosceles triangle two waist limit;
The scope of object under test straight-line displacement is less than or equal to L, described laser displacement sensor range is S', described test isosceles triangle is arranged on object under test, described test isosceles triangle base is parallel with object under test movement locus, described laser displacement sensor is fixed on the top of test isosceles triangle, described laser displacement sensor is fixed on the centre position in test isosceles triangle moving range, described laser displacement sensor direction of measurement is perpendicular to the base of test isosceles triangle, the height on described laser displacement sensor distance test isosceles triangle base is S and S≤S', described laser displacement sensor can accurately measure the height H between test point to isosceles triangle hypotenuse, described optoelectronic switch is arranged on the 1/2L place of distance object under test motion starting point, described optoelectronic switch is according to there being the exportable positive and negative values of no signal, specific as follows:
(1) when optoelectronic switch has signal, the displacement D=(S-H of object under test)/tan β.
(2) when optoelectronic switch no signal, the displacement D=L-(S-H of object under test)/tan β.
Mentality of designing of the present invention: utilize the right-angle triangle of a known angle and short right-angle side length accurately can calculate the principle of its long right-angle side, adopt and have laser displacement sensor to measure short right-angle side length thus calculate the length of long right-angle side, thus add the measurement range of laser displacement sensor, in the middle of test, only on object under test, an auxiliary triangle need be installed, the angle of long right-angle side and hypotenuse is known, short right-angle side is the range value of laser displacement sensor, long right-angle side is the shift value of object under test, the intersection point of long right-angle side and hypotenuse is for test starting point, described auxiliary triangle moves with object under test, the vertical height of laser displacement sensor distance hypotenuse can be accurately measured by laser displacement sensor, deduct laser displacement sensor measured value by auxiliary triangle short right angle boundary values again and can obtain the height value of current location base apart from hypotenuse, can calculate to assist according to Pythagorean theorem and use leg-of-mutton displacement.
Conveniently mechanical erection, be isosceles triangle by auxiliary triangular design, in test process, in order to avoid laser displacement sensor, to be positioned at two hypotenuse measured values identical, sign bit is used as by optoelectronic switch, can judge that present laser displacement transducer is positioned at left side or the right side of test isosceles triangle according to installation situation and optoelectronic switch with or without reflected signal, then calculate the displacement of object under test according to measuring principle.
Beneficial effect of the present invention is: structure is simple, result is accurate, fast response time, test specification are wide.
Accompanying drawing explanation
Fig. 1 is isosceles triangle schematic diagram to be tested.
Fig. 2 is measuring principle figure.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
See figures.1.and.2, a kind of measuring method of expansion of laser light displacement sensor measurement range, the proving installation realizing this method of testing comprises test isosceles triangle 1, described test isosceles triangle device bottom side length is L, be highly S, the angle on waist and base is β, and there is laser displacement sensor light-sensitive surface on 1 liang of waist limit to described test isosceles triangle;
The scope of described object under test straight-line displacement is less than or equal to L, and described laser displacement sensor range is S'.Described test isosceles triangle 1 is arranged on object under test, described test isosceles triangle 1 base is parallel with object under test movement locus, as shown in Figure 2, described test isosceles triangle moves to C point with object under test from B point, described laser displacement sensor is fixed on the top of test isosceles triangle 1, described laser displacement sensor is fixed on centre position in test isosceles triangle 1 moving range and A point, described laser displacement sensor direction of measurement is perpendicular to the base of test isosceles triangle 1, the height on described laser displacement sensor distance test isosceles triangle base is S, S≤S',
In object under test motion process, described laser displacement sensor can accurately measure the height H between test point to isosceles triangle hypotenuse, the height S on laser displacement sensor distance base deducts the vertical height h that namely H obtains test isosceles triangle base distance waist, i.e. h=S-H; Move to the process of A point at object under test from B point, object under test displacement D, h and test isosceles triangle hypotenuse form a right-angle triangle, so D=h/tan β, i.e. D=(S-H)/tan β; Move to the process of C point at object under test from A point, object under test displacement is L-h/tan β, i.e. D=L-(S-H)/tan β, described optoelectronic switch is arranged on 1/2L place and the D point of distance object under test motion starting point, and described optoelectronic switch is according to there being the exportable positive and negative values of no signal.When optoelectronic switch has signal, the displacement D=(S-H of object under test)/tan β; When optoelectronic switch no signal, the displacement D=L-(S-H of object under test)/tan β.
Claims (1)
1. the measuring method of an expansion of laser light displacement sensor measurement range, it is characterized in that: the proving installation realizing this measuring method comprises test isosceles triangle device, described test isosceles triangle device bottom side length is L, be highly S, the angle on waist and base is β, and there is laser displacement sensor light-sensitive surface on described test isosceles triangle two waist limit;
The scope of object under test straight-line displacement is less than or equal to L, described laser displacement sensor range is S', described test isosceles triangle is arranged on object under test, described test isosceles triangle base is parallel with object under test movement locus, described laser displacement sensor is fixed on the top of test isosceles triangle, described laser displacement sensor is fixed on the centre position in test isosceles triangle moving range, described laser displacement sensor direction of measurement is perpendicular to the base of test isosceles triangle, the height on described laser displacement sensor distance test isosceles triangle base is S and S≤S', described laser displacement sensor can accurately measure the height H between test point to isosceles triangle hypotenuse, optoelectronic switch is arranged on the 1/2L place of distance object under test motion starting point, described optoelectronic switch is according to there being the exportable positive and negative values of no signal, specific as follows:
(1) when optoelectronic switch has signal, displacement D=(the S-H)/tan β of object under test;
(2) when optoelectronic switch no signal, displacement D=L-(the S-H)/tan β of object under test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213440.0A CN103322920B (en) | 2013-05-31 | 2013-05-31 | A kind of measuring method of expansion of laser light displacement sensor measurement range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213440.0A CN103322920B (en) | 2013-05-31 | 2013-05-31 | A kind of measuring method of expansion of laser light displacement sensor measurement range |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103322920A CN103322920A (en) | 2013-09-25 |
| CN103322920B true CN103322920B (en) | 2016-03-30 |
Family
ID=49191826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310213440.0A Active CN103322920B (en) | 2013-05-31 | 2013-05-31 | A kind of measuring method of expansion of laser light displacement sensor measurement range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103322920B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441112B (en) * | 2016-11-04 | 2017-08-15 | 杭州电子科技大学 | A kind of Tilt In The Laser Triangulation Disp, Lacement apparatus and method of changeable fluid |
| CN110398203B (en) * | 2019-08-14 | 2021-06-04 | 东风设备制造有限公司 | Long-distance laser length measuring method and device |
| CN111215771A (en) * | 2020-03-04 | 2020-06-02 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Laser processing device and processing method |
| WO2022161123A1 (en) | 2021-01-29 | 2022-08-04 | 上海睿钰生物科技有限公司 | Laser distance measuring method, focusing method, laser distance measuring system, focusing system, and auto-focusing analysis device |
| CN112946673B (en) * | 2021-01-29 | 2023-01-06 | 上海睿钰生物科技有限公司 | Laser ranging method, focusing method, laser ranging system and focusing system |
| CN114151136B (en) * | 2021-11-04 | 2024-02-20 | 天地（常州）自动化股份有限公司 | Personnel protection method of reversed loader |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261281A (en) * | 2007-03-07 | 2008-09-10 | 中国科学院半导体研究所 | Optical fibre acceleration sensor based on ultra- short cavity optical fibre laser |
| CN201251432Y (en) * | 2008-07-10 | 2009-06-03 | 陈鼎凌 | Wide-area high-sensibility sun-tracking sensor |
| KR20110107836A (en) * | 2010-02-25 | 2011-10-04 | 제이에프이 스틸 가부시키가이샤 | Method and apparatus for measuring pitches of wire rope and manufacturing method of wire rope |
-
2013
- 2013-05-31 CN CN201310213440.0A patent/CN103322920B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261281A (en) * | 2007-03-07 | 2008-09-10 | 中国科学院半导体研究所 | Optical fibre acceleration sensor based on ultra- short cavity optical fibre laser |
| CN201251432Y (en) * | 2008-07-10 | 2009-06-03 | 陈鼎凌 | Wide-area high-sensibility sun-tracking sensor |
| KR20110107836A (en) * | 2010-02-25 | 2011-10-04 | 제이에프이 스틸 가부시키가이샤 | Method and apparatus for measuring pitches of wire rope and manufacturing method of wire rope |
Non-Patent Citations (1)
| Title |
|---|
| 带非线性预校正功能的偏振光位移传感器;李伟等;《仪器仪表学报》;20000229;第21卷(第1期);正文第59页第二栏第1-3段、第60页第一栏第1段 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103322920A (en) | 2013-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103322920B (en) | A kind of measuring method of expansion of laser light displacement sensor measurement range | |
| CN103616112B (en) | A kind of self-calibration thrust measurement device for block testing stand | |
| CN207908539U (en) | A kind of comb capacitance type 3 axis MEMS acceleration transducer | |
| CN203479251U (en) | High-precision magnetostriction displacement/liquid level sensor calibration system device | |
| CN102175137B (en) | Extensometer for measuring micro-deformation of component | |
| CN103344216A (en) | Height measurement instrument | |
| CN201688843U (en) | Real-time dynamic-measuring quick-positioning centering rod | |
| CN104596394A (en) | Flange width checking tool | |
| CN203349816U (en) | Height measuring instrument | |
| CN101788257A (en) | Device and method for six degrees of freedom micro pose measurement based on capacitance sensor | |
| CN103234457B (en) | Based on the multi-beam displacement measurement method of digital imagery | |
| CN202274851U (en) | Pedal clearance measuring ruler | |
| CN203323705U (en) | Measuring instrument provided with laser displacement sensor of extended measuring range | |
| CN203530824U (en) | Portable pavement smoothness laser detector with three-meter straight rule | |
| CN103808244A (en) | Magnetic encoder for position measurement | |
| CN103792390A (en) | Accelerometer employing main and auxiliary beam structure | |
| CN104949602A (en) | T-shaped vernier type depth measuring scale | |
| CN203940858U (en) | Can automatically quote the two-dimensional gradienter of measuring numerical value | |
| CN201141759Y (en) | High-precision three-dimensional GNSS displacement detection apparatus | |
| CN102323003A (en) | High-accuracy automatic liquid pressure gauge | |
| CN203881236U (en) | Intelligent digital display indicator | |
| CN203287001U (en) | Detection device for displacement and speed of movable cross beam of testing machine | |
| CN206269751U (en) | A kind of measurement apparatus based on three-dimensional (3 D) manikin | |
| CN103363917A (en) | Laser digital display measuring instrument of distance between two points, and measuring method of distance between two points | |
| CN202305095U (en) | High-accuracy automatic liquid manometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191125 Address after: Room 1,020, Nanxun Science and Technology Pioneering Park, No. 666 Chaoyang Road, Nanxun District, Huzhou City, Zhejiang Province, 313000 Patentee after: Huzhou You Yan Intellectual Property Service Co.,Ltd. Address before: 313000 Room 1403, 14th Floor, Building B, Freeport, Headquarters 1188 District Fulu Road, Wuxing District, Huzhou City, Zhejiang Province Patentee before: Zhejiang creation Intellectual Property Service Co.,Ltd. Effective date of registration: 20191125 Address after: 313000 Room 1403, 14th Floor, Building B, Freeport, Headquarters 1188 District Fulu Road, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Zhejiang creation Intellectual Property Service Co.,Ltd. Address before: The city Zhaohui six districts Chao Wang Road Hangzhou City, Zhejiang province 310014 18 Patentee before: Zhejiang University of Technology |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200605 Address after: Room 501, Office Building of Market Supervision Bureau of Langchuan Avenue, Jianping Town, Langxi County, Xuancheng City, Anhui Province Patentee after: Langxi pinxu Technology Development Co.,Ltd. Address before: Room 1,020, Nanxun Science and Technology Pioneering Park, No. 666 Chaoyang Road, Nanxun District, Huzhou City, Zhejiang Province, 313000 Patentee before: Huzhou You Yan Intellectual Property Service Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220707 Address after: No.58, Humen Tuanjie Road, Humen Town, Dongguan City, Guangdong Province 523000 Patentee after: DONG GUAN SNDWAY CO.,LTD. Address before: Room 501, office building, Langchuan Avenue, Jianping Town, Langxi County, Xuancheng City, Anhui Province Patentee before: Langxi pinxu Technology Development Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.58, Humen Tuanjie Road, Humen Town, Dongguan City, Guangdong Province 523000 Patentee after: Shendawei Technology (Guangdong) Co.,Ltd. Address before: No.58, Humen Tuanjie Road, Humen Town, Dongguan City, Guangdong Province 523000 Patentee before: DONG GUAN SNDWAY CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |