CN102944177A - Method for calibrating and replacing laser or displacement sensor in long-term measurement system - Google Patents
Method for calibrating and replacing laser or displacement sensor in long-term measurement system Download PDFInfo
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- CN102944177A CN102944177A CN2012104615843A CN201210461584A CN102944177A CN 102944177 A CN102944177 A CN 102944177A CN 2012104615843 A CN2012104615843 A CN 2012104615843A CN 201210461584 A CN201210461584 A CN 201210461584A CN 102944177 A CN102944177 A CN 102944177A
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Abstract
本发明公开了一种长期测量系统中激光器或位移传感器的标定及更换方法，其特征在于，所述激光器是一个激光准直光源；激光器标定台和具体测量应用场合使用相同的激光器安装基座；所述的位移传感器是指基于激光准直技术的一维或二维光电位移传感器，传感器标定台和具体测量应用场合使用相同的传感器安装基座；激光器和传感器的标定可由计算机自动控制。在长期测量系统中，激光器或传感器发生故障时，可随时更换新的激光器或传感器而能保证测量数据的一致性和延续性。
The invention discloses a method for calibrating and replacing a laser or a displacement sensor in a long-term measurement system, which is characterized in that the laser is a laser collimation light source; the laser calibrating platform and the specific measurement application use the same laser mounting base; The displacement sensor refers to a one-dimensional or two-dimensional photoelectric displacement sensor based on laser alignment technology. The sensor calibration table and the specific measurement application use the same sensor installation base; the calibration of the laser and the sensor can be automatically controlled by a computer. In the long-term measurement system, when the laser or sensor fails, a new laser or sensor can be replaced at any time to ensure the consistency and continuity of the measurement data.
Description
Technical field
The present invention relates to demarcation and the replacing method of photoelectric device in a kind of measuring system, particularly a kind of demarcation and replacing method based on laser instrument or displacement transducer in the long-term measuring system of laser collimation technology.
Background technology
Utilize the collimation laser technology to realize that displacement measurement has application in a lot of fields, for high-precision measurement, the demarcation of displacement transducer is a relatively hard problem.Particularly in the fixing long-term measuring system that is formed by a plurality of sensors, such as the arch dam deformation monitoring system, require the variation of long term monitoring displacement, when certain laser instrument or displacement transducer break down in the measuring system, how guaranteeing to repair the measurement data of rear system and continuity and the consistance of the measurement data before the fault, is a practical problems that needs to be resolved hurrily.
Summary of the invention
In order to improve the demarcation efficient of photoelectric sensor, solve the free replacing problem of laser instrument in the long-term measuring system or displacement transducer, guarantee that replacing laser instrument or sensor do not affect continuity and the consistance of measurement data, the present invention proposes a kind of demarcation of laser instrument or the photoelectric displacement sensor based on laser collimation technology, and the replacing method of laser instrument and sensor.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
The scaling method of laser instrument or displacement transducer in a kind of long-term measuring system, it is characterized in that, comprise the calibration system that is consisted of by laser instrument pedestal, sensor base, two-dimensional stage, control circuit and computing machine, wherein, sensor base is fixed on the two-dimensional stage, between the two distance is consistent in distance between laser instrument pedestal and the sensor base and the actual measuring system, control circuit makes two-dimensional stage move along two mutually orthogonal directions by computer control, and the traverse measurement result returns computing machine again;
In the above system, the scaling method of described laser instrument is:
The photoelectric displacement sensor of a standard is installed on the sensor base, then laser instrument to be calibrated is installed on the laser instrument pedestal, start the laser instrument calibrating procedure in the computing machine, record and the error of centralization of preserving laser instrument are used for the correction of measurement result at last;
The scaling method of described displacement transducer is: the laser instrument of a standard is installed on the laser instrument pedestal, then photoelectric displacement sensor to be calibrated is installed on the installation of sensors pedestal, start the transducer calibration program in the computing machine, record is also preserved nominal data, as computation and measurement result's foundation.
In the such scheme, each moving direction of described two-dimensional stage is respectively installed a platform displacement transducer, and the displacement measurement of two-dimensional stage is gathered to computing machine.
The concrete demarcation flow process of described displacement transducer is:
A, setting calibration range and demarcation step-length;
B, adjustment two-dimensional stage make laser facula be positioned at the center of photoelectric displacement sensor to be calibrated;
C, two displacement transducers will measuring the two-dimensional stage displacement make zero;
D, according to the calibration range of setting with demarcate step-length and carry out that grid is demarcated and the record nominal data.
The replacing method of laser instrument in a kind of long-term measuring system, it is characterized in that, in the measuring system of using laser alignment displacement measurement or deformation measurement, adopt laser instrument pedestal and the sensor base of same structure in the aforementioned calibration system, when having laser instrument or photoelectric displacement sensor to break down, only need the fault part is unloaded from mounting base, reinstall a good laser instrument or photoelectric displacement sensor, simultaneously the nominal data of defective device in the measuring system is replaced with the nominal data of new unit.
Advantage of the present invention is:
1, can be demarcated easily laser instrument and photoelectric sensor by computer controlled automatic.
2, in long-term measuring system, if laser instrument or photoelectric sensor break down, can change at any time and do not affect consistance and the continuity of measurement data.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is laser instrument of the present invention, sensor calibration system theory diagram.Among the figure: 1, platform displacement transducer; 2, control circuit; 3, computing machine; 4, photoelectric displacement sensor (standard or to be calibrated); 5, sensor base; 6, two-dimensional stage; 7, laser instrument pedestal; 8, laser instrument (standard or to be calibrated); 9,10,11, three mutually orthogonal reference fields of laser instrument pedestal; 9 ', 10 ', 11 ', three mutually orthogonal reference fields of laser instrument; 12,13,14, three mutually orthogonal reference fields of sensor base.
Fig. 2 is laser instrument pedestal schematic diagram among Fig. 1.
Fig. 3 is laser instrument profile outline among Fig. 1.
Fig. 4 is sensor base schematic diagram among Fig. 1.
Fig. 5 is the demarcation process flow diagram of displacement transducer to be calibrated.
Embodiment
With reference to figure 1, the hardware device of wanting required for the present invention comprises laser instrument pedestal 7, sensor base 5, two-dimensional stage 6, relevant control circuit 2 and computing machine 3.
Two-dimensional stage can move along two mutually orthogonal directions in a plane, and its rotation that moves through computing machine 3 and control circuit 2 Driving Stepping Motors realizes.Each moving direction is installed a platform displacement transducer 1, can measure the displacement of two-dimensional stage, and measurement result is gathered by computing machine 3.Displacement transducer 1 can be comprised of light emitting diode and one dimension CCD device.Also can the person omit platform displacement transducer 1, the step number of directly advancing by stepper motor is come the displacement of Two-dimensional platform.
Scaling method is:
(1) at first laser instrument pedestal, two-dimensional stage are fixed, so that the distance between the two is consistent in the distance between laser instrument pedestal and the sensor base and the practical application.
(2) demarcation of laser instrument: the photoelectric displacement sensor 4 of a standard is installed on the sensor base 5, then laser instrument to be calibrated 8 is installed on the laser instrument pedestal, start the laser instrument calibrating procedure in the computing machine, record and the error of centralization of preserving laser instrument are used for the correction of measurement result.
(3) demarcation of sensor: the laser instrument 8 of a standard is installed on the laser instrument pedestal, then photoelectric displacement sensor to be calibrated 4 is installed on the installation of sensors pedestal, start the transducer calibration program in the computing machine, record is also preserved nominal data, as computation and measurement result's foundation.
With reference to figure 2 Fig. 3, the laser instrument pedestal has three mutually orthogonal reference fields 9,10,11(or two reference fields and a datum line).Laser instrument is the lasing light emitter with collimating optics camera lens, and corresponding three mutually orthogonal reference fields 9 ', 10 ', 11 ' (or two reference fields and a datum line) are also arranged, and the mutual alignment relation during installation as shown in Figure 1.
With reference to figure 4, three mutually orthogonal reference fields 12,13,14(or two reference fields and a datum line are arranged on the sensor base 5); Photoelectric displacement sensor 4(standard or to be calibrated) also have and three precision machined reference fields should be arranged mutually (or two reference fields and a datum line), the mutual alignment relation during installation as shown in Figure 1.
As shown in Figure 5, photoelectric displacement sensor demarcation flow process comprises:
A, setting calibration range and demarcation step-length;
B, adjustment two-dimensional stage make laser facula be positioned at the center of photoelectric displacement sensor to be calibrated;
C, two displacement transducers will measuring the two-dimensional stage displacement make zero;
D, according to the calibration range of setting with demarcate step-length and carry out that grid is demarcated and the record nominal data.
The replacing method of laser instrument or displacement transducer: in the measuring system of using laser alignment displacement measurement or deformation measurement, laser instrument pedestal 7(Fig. 2 of same structure in necessary employing and the calibration system of the present invention) and sensor base 5(Fig. 4).Especially in long-term measuring system, when having laser instrument 8 or photoelectric displacement sensor 4 to break down, only need the fault part is unloaded from mounting base, reinstall a good laser instrument or photoelectric displacement sensor, simultaneously the nominal data of defective device in the measuring system is replaced consistance and the continuity that can guarantee measurement result with the nominal data of new unit.
Photoelectric displacement sensor in demarcation of the present invention and the measuring system comprises: one dimension CCD, one-dimensional PSD (position sensitive detector), two-dimensional CCD, Two-dimensional PSD, two-dimentional CMOS or other be imageing sensor (surveying as realize two-dimension displacement by screen shot) etc. indirectly.
Claims (4)
1. the scaling method of laser instrument or displacement transducer in the long-term measuring system, it is characterized in that, comprise the calibration system that is consisted of by laser instrument pedestal, sensor base, two-dimensional stage, control circuit and computing machine, wherein, sensor base is fixed on the two-dimensional stage, between the two distance is consistent in distance between laser instrument pedestal and the sensor base and the actual measuring system, control circuit makes two-dimensional stage move along two mutually orthogonal directions by computer control, and the traverse measurement result returns computing machine again;
In the above system, the scaling method of described laser instrument is:
The photoelectric displacement sensor of a standard is installed on the sensor base, then laser instrument to be calibrated is installed on the laser instrument pedestal, start the laser instrument calibrating procedure in the computing machine, record and the error of centralization of preserving laser instrument are used for the correction of measurement result at last;
The scaling method of described displacement transducer is: the laser instrument of a standard is installed on the laser instrument pedestal, then photoelectric displacement sensor to be calibrated is installed on the installation of sensors pedestal, start the transducer calibration program in the computing machine, record is also preserved nominal data, as computation and measurement result's foundation.
2. the scaling method of laser instrument or displacement transducer in the long-term measuring system as claimed in claim 1, it is characterized in that, each moving direction of described two-dimensional stage is respectively installed a platform displacement transducer, and the displacement measurement of two-dimensional stage is gathered to computing machine.
3. the scaling method of laser instrument or displacement transducer in the long-term measuring system as claimed in claim 2 is characterized in that, the concrete demarcation flow process of described displacement transducer is:
A, setting calibration range and demarcation step-length;
B, adjustment two-dimensional stage make laser facula be positioned at the center of photoelectric displacement sensor to be calibrated;
C, two displacement transducers will measuring the two-dimensional stage displacement make zero;
D, according to the calibration range of setting with demarcate step-length and carry out that grid is demarcated and the record nominal data.
4. the replacing method of laser instrument or displacement transducer in the long-term measuring system, it is characterized in that, in the measuring system of using laser alignment displacement measurement or deformation measurement, adopt laser instrument pedestal and the sensor base of same structure in the calibration system of laser instrument in the described long-term measuring system of claim 1 or displacement transducer scaling method, when having laser instrument or photoelectric displacement sensor to break down, only need the fault part is unloaded from mounting base, reinstall a good laser instrument or photoelectric displacement sensor, simultaneously the nominal data of defective device in the measuring system is replaced with the nominal data of new unit.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048610A (en) * | 2014-06-26 | 2014-09-17 | 中国地震局地质研究所 | Method and system for field application and calibration of reflection fiber optic displacement sensor |
| CN105333831A (en) * | 2014-08-15 | 2016-02-17 | 西安星展测控科技股份有限公司 | Laser imaging flexibility and displacement monitoring method |
| CN106767987A (en) * | 2016-11-18 | 2017-05-31 | 南京大树智能科技股份有限公司 | A kind of photoelectric sensor output signals scaling method |
| CN109813234A (en) * | 2019-03-04 | 2019-05-28 | 中国科学技术大学 | A Laser Displacement Detector Based on CCD |
| CN113790690A (en) * | 2021-11-17 | 2021-12-14 | 陕西省计量科学研究院 | Clamping attitude adjusting system and method for linear displacement sensor for calibration |
| CN114739292A (en) * | 2022-04-15 | 2022-07-12 | 南京航空航天大学 | A PSD calibration device and a parameter calibration method based on the device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1797024A (en) * | 2004-12-20 | 2006-07-05 | 香港理工大学 | Two-dimensional dynamic calibration table and calibration method for global positioning system |
| JP2008215829A (en) * | 2007-02-28 | 2008-09-18 | Sumitomo Heavy Ind Ltd | Calibration tool, calibration method, and laser machining device using method |
| CN201364143Y (en) * | 2008-12-30 | 2009-12-16 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Bridge moving displacement measuring device based on machine vision |
| CN202133349U (en) * | 2011-02-14 | 2012-02-01 | 北京耐尔仪器设备有限公司 | Calibrating device for non-contact displacement sensor |
| CN102374846A (en) * | 2011-09-21 | 2012-03-14 | 清华大学 | Closed type displacement sensor calibrating device |
-
2012
- 2012-11-15 CN CN2012104615843A patent/CN102944177A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1797024A (en) * | 2004-12-20 | 2006-07-05 | 香港理工大学 | Two-dimensional dynamic calibration table and calibration method for global positioning system |
| JP2008215829A (en) * | 2007-02-28 | 2008-09-18 | Sumitomo Heavy Ind Ltd | Calibration tool, calibration method, and laser machining device using method |
| CN201364143Y (en) * | 2008-12-30 | 2009-12-16 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Bridge moving displacement measuring device based on machine vision |
| CN202133349U (en) * | 2011-02-14 | 2012-02-01 | 北京耐尔仪器设备有限公司 | Calibrating device for non-contact displacement sensor |
| CN102374846A (en) * | 2011-09-21 | 2012-03-14 | 清华大学 | Closed type displacement sensor calibrating device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048610A (en) * | 2014-06-26 | 2014-09-17 | 中国地震局地质研究所 | Method and system for field application and calibration of reflection fiber optic displacement sensor |
| CN105333831A (en) * | 2014-08-15 | 2016-02-17 | 西安星展测控科技股份有限公司 | Laser imaging flexibility and displacement monitoring method |
| CN105333831B (en) * | 2014-08-15 | 2018-05-11 | 星展测控科技股份有限公司 | Laser imaging amount of deflection and displacement monitoring method |
| CN106767987A (en) * | 2016-11-18 | 2017-05-31 | 南京大树智能科技股份有限公司 | A kind of photoelectric sensor output signals scaling method |
| CN106767987B (en) * | 2016-11-18 | 2019-03-05 | 南京大树智能科技股份有限公司 | A kind of photoelectric sensor output signals scaling method |
| CN109813234A (en) * | 2019-03-04 | 2019-05-28 | 中国科学技术大学 | A Laser Displacement Detector Based on CCD |
| CN113790690A (en) * | 2021-11-17 | 2021-12-14 | 陕西省计量科学研究院 | Clamping attitude adjusting system and method for linear displacement sensor for calibration |
| CN113790690B (en) * | 2021-11-17 | 2024-04-02 | 陕西省计量科学研究院 | Clamping posture adjusting system and adjusting method for linear displacement sensor for calibration |
| CN114739292A (en) * | 2022-04-15 | 2022-07-12 | 南京航空航天大学 | A PSD calibration device and a parameter calibration method based on the device |
| CN114739292B (en) * | 2022-04-15 | 2023-02-24 | 南京航空航天大学 | PSD calibration device and parameter calibration method based on same |
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Application publication date: 20130227 |