CN104316077A - Information real-time measure system for table-top angle position of angular vibration table - Google Patents
Information real-time measure system for table-top angle position of angular vibration table Download PDFInfo
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- CN104316077A CN104316077A CN201410427246.7A CN201410427246A CN104316077A CN 104316077 A CN104316077 A CN 104316077A CN 201410427246 A CN201410427246 A CN 201410427246A CN 104316077 A CN104316077 A CN 104316077A
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- angle
- vibration table
- table top
- processing module
- metal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
- G01C25/005—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass initial alignment, calibration or starting-up of inertial devices
Abstract
An information real-time measure system for the table-top angle position of an angular vibration table is disclosed, belongs to the field of inertial device testing, and aims at solving the problems in the prior art that the measure precision is low, the cost is high, and reliable usage in severe environment cannot be realized. According to the information real-time measure system, a table top of the angular vibration table is fixedly disposed on a table body, the table body is fixedly disposed on a pedestal, and a reference target is fixedly disposed on the lateral side of the table top of the angular vibration table; an induction coil and a signal acquisition and processing module are fixedly disposed on a support, the induction coil is parallel to the reference target, and a target strip of the reference target is parallel to a rotation shaft of the angular vibration table; and the signal acquisition and processing module rapidly acquires the induced current of the induction coil, calculates out the angle position of the table top of the angular vibration table, and sends data acquired by a communication cable to a data acquisition computer, and the data acquisition computer directly calculates out the rotation angle of the table top of the angular vibration table through a transformation program of the relationship between pulse counting number and the angle. The system is high in measure precision and low in cost, and can be reliably used in severe environment.
Description
Technical field
The invention belongs to inertia device field tests, be specifically related to a kind of angle vibration table table top angle position information real-time measurement system.
Background technology
Gyro measures carrier relative to a kind of sensor of inertial space angular velocity of satellite motion, is used widely with military domain civilian.Frequency characteristic weighs the important indicator of gyro dynamic perfromance, and usual dedicated bandwidth represents.Angle vibration table is the major equipment measuring gyro dynamic property, can accurately analog carrier angular motion state, has working band wide, the advantages such as measuring accuracy is high, good stability.
Need real―time precision measurment angle vibration table table top angle position information in gyro dynamic characteristic test process, traditional table top angle position information is measured and is completed by laser interferometer.Its cardinal principle is that an optical module (angled mirrors) rotates relative to another optical module (angle interference mirror), the optical path difference between two measuring beams is caused to change, the change of this optical path difference is determined by the fringe counter of laser system, and converts angle measurement or angular error to by software.
See accompanying drawing 1, the measuring system that tradition utilizes laser interferometer to carry out the measurement of angle vibration table table top angle position information comprises angle vibration table table top 1, stage body 2, pedestal 3, mobile corner cube reflector 4, spectroscope 5, fixing corner cube reflector 6, laser interferometer 7, data cable 8 and data handling machine 9; In this scheme test process, mobile corner cube reflector 4 connects firmly installation with table top 1, the laser that laser interferometer 7 is launched enters angle of critical deformation and bores catoptron 4 after spectroscope 5 with fixing corner cube reflector 6, mobile corner cube reflector 4 goes out the laser containing angular motion information with table top 1 motor reflex, again through spectroscope 5 and fixing corner cube reflector 6, finally enter laser interferometer 7, article two, the optical path difference between measuring beam changes, determined by the fringe counter in laser interferometer 7, and convert angle measurement to by software.This scheme is applicable to measure minute angle, generally very harsh to the requirement of environment, and apparatus structure is accurate, and stability is bad, and components and parts performance requirement is high, thus usually only as a kind of measuring basis and detection means, is difficult to in-site measurement.In addition, laser interferometer measurement precision is high, and price is generally 600,000 ~ 800,000, needs supporting various optical module, and light path adjustment is loaded down with trivial details, has that cost is high, the shortcoming of system complex, is therefore not suitable for the large batch of production of commercialization.
Summary of the invention
The object of the invention is to propose a kind of angle vibration table table top angle position information real-time measurement system, solve that the measuring accuracy that prior art exists is low, cost is high and the problem that reliably cannot use in rugged surroundings.
For achieving the above object, angle vibration table table top angle position information real-time measurement system of the present invention comprises angle vibration table table top, stage body, pedestal, benchmark target, inductive coil, Signal acquiring and processing module, support and data acquisition computer;
Described angle vibration table table top is fixed on above described stage body, and described stage body is fixed on described pedestal, and described benchmark target is fixed on the side of described angle vibration table table top; Described inductive coil and described Signal acquiring and processing module are fixed on the bracket, described inductive coil and described benchmark parallel target, and described basic target target target bar is parallel with the turning axle of angle vibration table;
The induction current of described Signal acquiring and processing module Quick Acquisition inductive coil, and the Angle Position of angle vibration table table top is calculated in real time by calibrating parameters, the data of collection are transferred to data acquisition computer by telecommunication cable by described Signal acquiring and processing module, and described data acquisition computer directly calculates the angle of angle vibration table table top rotation by conversion program.
Described basic target is designated as flexible accurate dentation metal plate, comprises metal-toothed and metal plate, and described metal-toothed is evenly distributed on described metal plate, and the width of metal-toothed is equal with the distance between adjacent two metal-toothed; The radius of angle vibration table table top is R (mm), the width of metal-toothed and interval are d (mm), the length of sheet metal is D (mm), angular resolution θ (°), the relation between measurement of angle total size ψ (°) can be expressed as:
d＝θRπ/180
D＝ψRπ/180
Required angle resolution θ=0.01 ° in test process, measurement of angle total size ψ is 10 °.
Described signals collecting comprises Micro-processor MCV and inductance sensor in processing module, described inductance sensor is communicated with Micro-processor MCV by SPI interface, and the CAN2.0B interface of described Micro-processor MCV is connected with data acquisition computer by data cable.
Beneficial effect of the present invention is: angle vibration table table top angle position information real-time measurement system of the present invention overlaps the angle position information of table top in the inductance sensor angle-measurement system measured angular vibration that processing module is formed by benchmark target, inductive coil and signals collecting, compared with prior art, decrease a set of laser interferometer, reduce hardware cost and Operating Complexity, simultaneously again can real―time precision measurment angle vibration table table top angle position information, meet the requirement of inertia device dynamic characteristic test.Measuring accuracy is high, cost is low, achieves the reliable use in rugged surroundings.
Accompanying drawing explanation
Fig. 1 is the principle schematic by laser interferometer measurement angle vibration table table top angle position information in prior art;
Fig. 2 is angle vibration table table top angle position information real-time measurement system measuring principle schematic diagram of the present invention;
Fig. 3 is benchmark target contour structures schematic diagram in angle vibration table table top angle position information real-time measurement system of the present invention;
Fig. 4 is inductive coil structural representation in angle vibration table table top angle position information real-time measurement system of the present invention;
Fig. 5 is Signal acquiring and processing modular circuit principle schematic in angle vibration table table top angle position information real-time measurement system of the present invention;
Wherein: 1, angle vibration table table top, 2, stage body, 3, pedestal, 4, mobile corner cube reflector, 5, spectroscope, 6, fixing corner cube reflector, 7, laser interferometer, 8, data cable, 9, data acquisition computer, 10, benchmark target, 11, inductive coil, 12, Signal acquiring and processing module, 13, support, 14, metal-toothed, 15, metal plate, 16, pcb board, 17, spiral coil, 18, Micro-processor MCV, 19, inductance sensor.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described further.
See accompanying drawing 2, angle vibration table table top angle position information real-time measurement system of the present invention comprises angle vibration table table top 1, stage body 2, pedestal 3, benchmark target 10, inductive coil 11, Signal acquiring and processing module 12, support 13 and data acquisition computer 9;
Described angle vibration table table top 1 is fixed on above described stage body 2, and described stage body 2 is fixed on described pedestal 3, and described benchmark target 10 is fixed on the side of described angle vibration table table top 1; Described inductive coil 11 is fixed on described support 13 with described Signal acquiring and processing module 12, and described inductive coil 11 and surface level keep vertical, parallel with described benchmark target 10, and the target bar of described benchmark target 10 is parallel with the turning axle of angle vibration table;
The induction current of described Signal acquiring and processing module 12 Quick Acquisition inductive coil 11, and the Angle Position of angle vibration table table top 1 is calculated in real time by calibrating parameters, the data of collection are transferred to data acquisition computer 9 by telecommunication cable by described Signal acquiring and processing module 12, and described data acquisition computer 9 directly calculates by the conversion program of step-by-step counting and angular relationship the angle that angle vibration table table top 1 rotates.
See accompanying drawing 4, described inductive coil 11 comprises pcb board 16 and spiral coil 17, spiral coil 17 designs by spiral curve, and carry out plate-making and the processing of pcb board 16, form inductive coil, pcb board 16 is the square of length of side 50mm, and spiral coil 17 is the spiral of Archimedes of line style width 2mm.
See accompanying drawing 3, described benchmark target 10 is flexible accurate dentation metal plate 15, comprise metal-toothed 14 and metal plate 15, described metal-toothed 14 is evenly distributed on described metal plate 15, and the width of metal-toothed 14 is equal with the distance between adjacent two metal-toothed 14.The radius of angle vibration table table top 1 is R (mm), the width of metal-toothed 14 and interval are d (mm), the length of sheet metal 15 is D (mm), angular resolution θ (°), the relation between measurement of angle total size ψ (°) can be expressed as:
d＝θRπ/180
D＝ψRπ/180
Required angle resolution θ=0.01 ° in test process, measurement of angle total size ψ is 10 °, supposes R=150mm, then can calculate d=0.026mm according to formula, D=26mm.Benchmark target 10 carries out accurate dentation processing by laser machine.
See accompanying drawing 5, described signals collecting comprises Micro-processor MCV 18 and inductance sensor 19 in processing module, described inductance sensor 19 is communicated with Micro-processor MCV 18 by SPI interface, and the CAN2.0B interface of described Micro-processor MCV 18 is connected with data acquisition computer 9 by data cable 8.Micro-processor MCV 18 selects the position single-chip microcomputer MC9S12B128MFUE of Freescale company, there is 1 CAN2.0B interface and carry out real-time Data Transmission by data cable 8 and data acquisition computer 9, also there is 1 SPI interface and inductance sensor 19 carries out data communication.The LDC1000 of TI company selected by inductance sensor 19, it provide the resonance impedance of position and the inductance value of position, the sensing precision of sub-micron can be realized, inductance sensor 19 has 1 SPI interface and communicates with Micro-processor MCV 18, and operationally provide clock reference by MCU, the induction current of inductance sensor 19 responsive inductive coil 11 sensor, and send look-at-me by INTB to Micro-processor MCV 18, the laggard row of Micro-processor MCV 18 receive interruption signal is by SPI interface read sensor data, and by CAN interface, range information is sent to data acquisition computer 9.Data acquisition computer 9 directly can calculate the angle of angle vibration table table top 1 rotation by conversion program.
Claims (3)
1. angle vibration table table top angle position information real-time measurement system, comprises angle vibration table table top (1), stage body (2), pedestal (3) and data acquisition computer (9); It is characterized in that, also comprise, benchmark target (10), inductive coil (11), Signal acquiring and processing module (12) and support (13);
Described angle vibration table table top (1) is fixed on described stage body (2) top, described stage body (2) is fixed on described pedestal (3), and described benchmark target (10) is fixed on the side of described angle vibration table table top (1); Described inductive coil (11) and described Signal acquiring and processing module (12) are fixed on described support (13), described inductive coil (11) is parallel with described benchmark target (10), and the target bar of described benchmark target (10) is parallel with the turning axle of angle vibration table;
The induction current of described Signal acquiring and processing module (12) Quick Acquisition inductive coil (11), and the Angle Position of angle vibration table table top (1) is calculated in real time by calibrating parameters, the data of collection are transferred to data acquisition computer (9) by telecommunication cable by described Signal acquiring and processing module (12), and described data acquisition computer (9) directly calculates by the conversion program of step-by-step counting and angular relationship the angle that angle vibration table table top (1) rotates.
2. angle vibration table table top angle position information real-time measurement system according to claim 1, it is characterized in that, described benchmark target (10) is flexible accurate dentation metal plate (15), comprise metal-toothed (14) and metal plate (15), described metal-toothed (14) is evenly distributed on described metal plate (15), and the width of metal-toothed (14) is equal with the distance between adjacent two metal-toothed (14); The radius of angle vibration table table top (1) is R (mm), the width of metal-toothed (14) and interval are d (mm), the length of sheet metal (15) is D (mm), angular resolution θ (°), the relation between measurement of angle total size ψ (°) can be expressed as:
d＝θRπ/180
D＝ψRπ/180
Required angle resolution θ=0.01 ° in test process, measurement of angle total size ψ is 10 °.
3. angle vibration table table top angle position information real-time measurement system according to claim 1, it is characterized in that, described signals collecting comprises Micro-processor MCV (18) and inductance sensor (19) in processing module, described inductance sensor (19) is communicated with Micro-processor MCV (18) by SPI interface, and the CAN2.0B interface of described Micro-processor MCV (18) is connected with data acquisition computer (9) by data cable (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410427246.7A CN104316077B (en) | 2014-08-26 | 2014-08-26 | Information real-time measure system for table-top angle position of angular vibration table |
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| CN201410427246.7A CN104316077B (en) | 2014-08-26 | 2014-08-26 | Information real-time measure system for table-top angle position of angular vibration table |
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| CN104316077A true CN104316077A (en) | 2015-01-28 |
| CN104316077B CN104316077B (en) | 2017-02-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102316A (en) * | 2017-06-20 | 2017-08-29 | 北醒（北京）光子科技有限公司 | A kind of method for measuring angular resolution |
| CN107743545A (en) * | 2015-04-22 | 2018-02-27 | 法国大陆汽车公司 | The method for determining the physical length at the short interval with tooth target of bent axle |
| CN112611391A (en) * | 2020-10-23 | 2021-04-06 | 西安航天精密机电研究所 | Inertia combination angular vibration testing method |
| CN113237491A (en) * | 2021-04-22 | 2021-08-10 | 北京航天计量测试技术研究所 | Frequency characteristic testing device and method of digital gyroscope |
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| RU2081741C1 (en) * | 1994-08-12 | 1997-06-20 | Иван Васильевич Стариков | Vibration nut-setter |
| CN2932318Y (en) * | 2006-07-19 | 2007-08-08 | 中国航空工业第一集团公司北京长城计量测试技术研究所 | Electric angular vibration table coil framework structure |
| CN201600231U (en) * | 2010-01-27 | 2010-10-06 | 中国人民解放军国防科学技术大学 | Angular vibration test table based on flexible hinge mechanism |
| WO2011025151A2 (en) * | 2009-08-31 | 2011-03-03 | 한국표준과학연구원 | Rotational vibration exciter |
| CN103471642A (en) * | 2013-09-27 | 2013-12-25 | 浙江大学 | Angular vibration table |
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| SU1024123A1 (en) * | 1981-02-23 | 1983-06-23 | Брянский Ордена Трудового Красного Знамени Технологический Институт | Apparatus for exciting angular vibration |
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| RU2081741C1 (en) * | 1994-08-12 | 1997-06-20 | Иван Васильевич Стариков | Vibration nut-setter |
| CN2932318Y (en) * | 2006-07-19 | 2007-08-08 | 中国航空工业第一集团公司北京长城计量测试技术研究所 | Electric angular vibration table coil framework structure |
| WO2011025151A2 (en) * | 2009-08-31 | 2011-03-03 | 한국표준과학연구원 | Rotational vibration exciter |
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| CN103471642A (en) * | 2013-09-27 | 2013-12-25 | 浙江大学 | Angular vibration table |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107743545A (en) * | 2015-04-22 | 2018-02-27 | 法国大陆汽车公司 | The method for determining the physical length at the short interval with tooth target of bent axle |
| CN107743545B (en) * | 2015-04-22 | 2020-01-31 | 法国大陆汽车公司 | Method for determining the actual length of a short interval of a toothed target of a crankshaft |
| CN107102316A (en) * | 2017-06-20 | 2017-08-29 | 北醒（北京）光子科技有限公司 | A kind of method for measuring angular resolution |
| CN112611391A (en) * | 2020-10-23 | 2021-04-06 | 西安航天精密机电研究所 | Inertia combination angular vibration testing method |
| CN112611391B (en) * | 2020-10-23 | 2023-10-20 | 西安航天精密机电研究所 | Inertial combination angular vibration testing method |
| CN113237491A (en) * | 2021-04-22 | 2021-08-10 | 北京航天计量测试技术研究所 | Frequency characteristic testing device and method of digital gyroscope |
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