CN102494651B - Displacement meter for measuring arbitrary angle - Google Patents
Displacement meter for measuring arbitrary angle Download PDFInfo
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- CN102494651B CN102494651B CN201110429217.0A CN201110429217A CN102494651B CN 102494651 B CN102494651 B CN 102494651B CN 201110429217 A CN201110429217 A CN 201110429217A CN 102494651 B CN102494651 B CN 102494651B
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- displacement meter
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- data processor
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Abstract
The invention discloses a displacement meter for measuring an arbitrary angle. The displacement meter comprises an ordinary displacement meter, a data processor and an automatic mounting angle corrector. Data are transmitted and processed by the ordinary displacement meter and the automatic mounting angle corrector with the data processor. The ordinary displacement meter and the automatic mounting angle corrector are connected in a separated or integral manner. The data processor comprises a central processing unit, a data amplifier, an A/D (Analogue/Digital) converter and a memory. The ordinary displacement meter is in a signal connection with the data amplifier, the A/D converter and the memory in sequence. The automatic mounting angle corrector is in the signal connection with the data amplifier, the A/D converter and the memory in sequence. The A/D converter and the memory are connected with the central processing unit. In a condition of having no need of being vertical with the surface of a test piece, the displacement meter for measuring the arbitrary angle can complete displacement measurement conveniently and accurately. Therefore, because an angle measurement function of a three-axis gyroscope is combined with the technology of a single chip microcomputer, the displacement meter can be efficiently mounted and fixed in various adverse environments and the test precision is improved.
Description
Technical field
The present invention relates to a kind of displacement meter, be specifically related to a kind of displacement meter that carries out arbitrarily angled measurement.
Background technology
At present, at all kinds of test piece deformations that relate to, measure in the application and experiment trying, conventionally adopt displacement meter to measure, method is that the expansion link of displacement meter or laser beam are withstood on to deformable body surface, and after keeping it perpendicular to test specimen surface, installation fixing position is moved meter fuselage.In actual installation process, the verticality of adjusting expansion link or laser beam has sizable difficulty, expends a large amount of energy, and is difficult to accomplish absolute vertical, use like this inconvenience very, brought inevitable error also to application and experiment simultaneously.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the object of this invention is to provide a kind of can be under any inclined installation angle all can Measurement accuracy displacement meter, make it have and revise the setting angle of inclination, automatically draw the function of test specimen surface displacement, reduce use error, expand the range of application of displacement meter.
Technical scheme: in order to realize foregoing invention object, the technical solution used in the present invention is:
A displacement meter for measuring arbitrary angle, comprises the automatic corrector of common displacement meter and data processor and setting angle; Described common displacement meter and the automatic corrector of setting angle all carry out data transmission and processing with data processor; Described common displacement meter adopts split or integral type to be connected with the automatic corrector of setting angle; Described data processor comprises central processing unit, data amplifier, A/D converter and storer; Described common displacement meter carries out signal with data amplifier, A/D converter and storer successively and is connected; The automatic corrector of described setting angle carries out signal with data amplifier, A/D converter and storer equally successively and is connected; Described A/D converter is all connected with central processing unit with storer.
Described common displacement meter is to have expansion link or laser beam, and the displacement transducer of firm fuselage and energy output electrical signals displacement, comprises strain-type displacement meter, LVDT formula displacement meter and laser displacement gauge etc.
Described data processor adopts single-chip microcomputer as central processing unit, adopts A/D chip as AD converter, and the minimum sampling period is 100 μ s; In conjunction with A/D chip, carry out simulating signal to the conversion of digital signal, jointly realize data collection and analysis.
The automatic corrector of described setting angle includes three-axis gyroscope, can and be transferred to data processor by the incline measurement of the angle of inclination of displacement meter or test specimen surface vertical line.
Beneficial effect: compare with displacement meter of the prior art, the advantage that displacement meter for measuring arbitrary angle of the present invention has comprises: this displacement meter for measuring arbitrary angle can be convenient, the demand of completion bit shift measurement accurately, angle measuring function and singlechip technology in conjunction with three-axis gyroscope, can under various adverse environments, complete easily the installation, fixing of displacement meter, improve measuring accuracy, there is good practicality, can produce good economic benefit and social effect.
Accompanying drawing explanation
Fig. 1 is the design concept figure of displacement meter for measuring arbitrary angle;
Fig. 2 and Fig. 3 are the structural representations of displacement meter for measuring arbitrary angle, and wherein Fig. 2 is split type, and Fig. 3 is integral type;
Fig. 4 be existing installing space deficiency cannot normal mounting the situation schematic diagram of tradition displacement meter;
Fig. 5 is used the employing inclination scheme of installation of displacement meter for measuring arbitrary angle of the present invention in the situation of insufficient space.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further explained.
As shown in Figure 1, displacement meter for measuring arbitrary angle comprises the automatic corrector of common displacement meter, data processor and setting angle.Data processor mainly consists of parts such as central processing unit, data amplifier, A/D converter and storeies; Data processor adopts single-chip microcomputer as central processing unit, adopts A/D chip to carry out the conversion of modulus signal, and the minimum sampling period is 100 μ s, can realize the data collection and analysis of 1000 points per second.The automatic corrector of setting angle is for can record the angle of inclination of displacement meter and three axles be transferred to the three-axis gyroscope of data processor.Common displacement meter can adopt split or integral type to be connected with the automatic corrector of setting angle.Common displacement meter carries out the signal automatic corrector of setting angle that is connected with data amplifier, A/D converter and storer successively and carries out signal with data amplifier, A/D converter and storer equally successively and be connected.A/D converter is all connected with central processing unit with storer.
Common displacement meter is the displacement transducer with expansion link or laser beam, firm fuselage and energy output electrical signals displacement, and main Types comprises strain-type displacement meter, LVDT formula displacement meter and laser displacement gauge etc.
As shown in Figures 2 and 3, the primary structure of typical displacement meter for measuring arbitrary angle comprises expansion link 1, displacement meter housing 2 and three-axis gyroscope parts 3.On displacement meter housing 2, be provided with " all-moving surface is surveyed and read " 4, " zero clearing " 5 and " measurement " 6 three action buttons.First, this displacement meter relies on Magnetic gauge stand facilitating position to set up, and twisting each joint of gauge stand makes expansion link withstand on certain point of all-moving surface surface (vertical without considering), tightens the knob on gauge stand connecting rod, fixes displacement meter.At the formal electricity that works that advances that uses, complete the initialization of displacement meter, observe and judge the moving direction of structure deformation plance.By three-axis gyroscope parts 3 from displacement meter housing 2 separately, be placed in the textured surface of test specimen, press " all-moving surface is surveyed and read " 4 buttons, record and input all-moving surface vertical line position angle parameter K (∠ Kxy now, ∠ Kxz, ∠ Kzy), then three-axis gyroscope parts 3 are reinstalled on displacement meter housing 2, press " zero clearing " 5 buttons, now three-axis gyroscope 3 records and inputs the now angle parameter B(∠ Bxy of displacement meter expansion link place straight line, ∠ Bxz, ∠ Bzy), and the initial deformation amount L of expansion link
0, while B and L
0deposit storer in.Preliminary work finishes.Press " measurement " 6 buttons, displacement meter is measured.Along with the carrying out of measuring, expansion link compressed (or stretching), its compression (or stretching) deflection is L
1, L
1value enters data processor, according to being worth formula Δ=(L in it
1-L
0) х cos[θ (K, B)] calculate real displacement value Δ (θ parameter is the space angle of K and B), and export Δ value signal.This signal data can matching computer or special-purpose number adopt instrument and carry out data acquisition, storage etc.
Displacement meter for measuring arbitrary angle of the present invention is to carry out angularity correction based on three-axis gyroscope, can carry out easily the displacement (or distortion) of body surface measures, problem without consideration with surperficial verticality, directly measure, accurate reading, there is following characteristics: (1) simplifies installation process, improve measuring accuracy.(2) in the situation of measurement space deficiency, as shown in Figure 4, displacement meter push rod can be departed to its deformation direction, reduced the operation easier of using.(3), when existing on deformation direction of member is unknown when dangerous, as the brittle fracture of member, member equivalent risk out of control, also can adopt and depart from deformation direction and place displacement meter, abdicates the method for usage space, reduces the infringement to displacement meter, as shown in Figure 5.
Claims (3)
1. a displacement meter for measuring arbitrary angle, is characterized in that: comprise the automatic corrector of common displacement meter and data processor and setting angle; Described common displacement meter and the automatic corrector of setting angle all carry out data transmission and processing with data processor; Described common displacement meter adopts split or integral type to be connected with the automatic corrector of setting angle; Described data processor comprises central processing unit, data amplifier, A/D converter and storer; Described common displacement meter carries out signal with data amplifier, A/D converter and storer successively and is connected; The automatic corrector of described setting angle carries out signal with data amplifier, A/D converter and storer successively and is connected; Described A/D converter is all connected with central processing unit with storer; The automatic corrector of described setting angle is for recording the angle of inclination of displacement meter and three axles be transferred to the three-axis gyroscope parts of data processor; Described common displacement meter is to have expansion link or laser beam, firm airframe structure, and displacement transducer that can output electrical signals displacement.
2. displacement meter for measuring arbitrary angle according to claim 1, is characterized in that: described common displacement meter is strain-type displacement meter, LVDT formula displacement meter or laser displacement gauge.
3. displacement meter for measuring arbitrary angle according to claim 1, is characterized in that: described data processor adopts single-chip microcomputer as central processing unit, and adopt A/D chip as AD converter, the minimum sampling period is 100 μ s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429217.0A CN102494651B (en) | 2011-12-20 | 2011-12-20 | Displacement meter for measuring arbitrary angle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429217.0A CN102494651B (en) | 2011-12-20 | 2011-12-20 | Displacement meter for measuring arbitrary angle |
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| CN102494651A CN102494651A (en) | 2012-06-13 |
| CN102494651B true CN102494651B (en) | 2014-03-05 |
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|---|---|---|---|
| CN201110429217.0A Expired - Fee Related CN102494651B (en) | 2011-12-20 | 2011-12-20 | Displacement meter for measuring arbitrary angle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109506582A (en) * | 2018-12-11 | 2019-03-22 | 上海航天控制技术研究所 | A kind of three-dimensional configuration inversion method based on optical measurement |
| CN113959321A (en) * | 2021-11-01 | 2022-01-21 | 哈尔滨工业大学 | Miniature space three-dimensional displacement testing device and displacement calculation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233384A (en) * | 2005-08-04 | 2008-07-30 | 六边形度量衡股份公司 | Measurement method and measuring device for use in measurement systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2731638B2 (en) * | 1991-04-19 | 1998-03-25 | 株式会社ミツトヨ | Capacitive displacement measuring device |
| CN101118159A (en) * | 2007-09-17 | 2008-02-06 | 北京航空航天大学 | Full self-determination type underground pipeline measuring systems based on inertia technology |
| CN202372160U (en) * | 2011-12-20 | 2012-08-08 | 南京林业大学 | Displacement meter capable of performing measurement at any angle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233384A (en) * | 2005-08-04 | 2008-07-30 | 六边形度量衡股份公司 | Measurement method and measuring device for use in measurement systems |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120613 Assignee: Nanjing Zexi Changyuan Mechanical and Electrical Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000319 Denomination of invention: Displacement meter for measuring arbitrary angle Granted publication date: 20140305 License type: Common License Record date: 20181116 Application publication date: 20120613 Assignee: Nanjing Grisvey Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000320 Denomination of invention: Displacement meter for measuring arbitrary angle Granted publication date: 20140305 License type: Common License Record date: 20181116 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120613 Assignee: Nanjing Xuantong Construction Engineering Co., Ltd Assignor: Nanjing Forestry University Contract record no.: X2019320000158 Denomination of invention: Displacement meter for measuring arbitrary angle Granted publication date: 20140305 License type: Common License Record date: 20191022 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20201220 |