CN102128637A - Method for testing optical fiber gyroscope - Google Patents
Method for testing optical fiber gyroscope Download PDFInfo
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- CN102128637A CN102128637A CN2010106107894A CN201010610789A CN102128637A CN 102128637 A CN102128637 A CN 102128637A CN 2010106107894 A CN2010106107894 A CN 2010106107894A CN 201010610789 A CN201010610789 A CN 201010610789A CN 102128637 A CN102128637 A CN 102128637A
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Abstract
The invention relates to the field of performance test of an optical fiber gyroscope, in particular to a method for testing the optical fiber gyroscope. The method comprises the following steps of: setting a test flow comprising a plurality of steps in a control computer; sending a control instruction of a first step of the test flow from the control computer to a rotary table; locking the rotary table to a corresponding position and/or a rate, and sending feedback information to the computer so that the control computer judges whether the position and/or the rate of the rotary table accords with a precision range set in the test flow; if the position and/or the rate of the rotary table accords with the precision range set in the test flow, delaying for 3 seconds and sending an acquisition signal to the computer; acquiring data of the optical fiber gyroscope by using an optical fiber gyroscope acquisition module; making the optical fiber gyroscope acquisition module stop acquiring; and sending a control instruction of the next step of the test flow from the rotary table and repeating the steps until the set test flow is finished. The method for testing the optical fiber gyroscope has the advantages that: the test flow setting and the rotary table control are integrated in a system for testing the optical fiber gyroscope, so the test efficiency is improved greatly, the test cost is reduced, the manmade interferences during test are reduced, and the test time is shortened.
Description
Technical field
The present invention relates to the performance test field of fibre optic gyroscope, specifically be a kind of quadratic programming function that has, the fibre optic gyroscope method of testing of carrying out the gyro performance test in conjunction with turntable automatically.
Background technology
Fibre optic gyroscope is a kind of angular rate sensor, is widely used in the inertial navigation field, is the main sensors that is used for determining moving object spatial movement attitude at present, and turntable is the visual plant that it is measured.Optical fibre gyro working environment very severe, harshness are the working environment of simulation gyro, and each gyro model machine all must be tested under the experimental enviroment of harshness, and experiment porch high-low temperature chamber and turntable often is mounted to an integral body and experimentizes.Like this, each testing apparatus of whole test system will cooperate use.Turntable mainly is intended for the object of reference of optical fibre gyro angular speed, if the turntable control platform that directly utilizes turntable manufacturer to provide, each state locks manually, open acquisition system again and gather optical fibre gyro output, such testing efficiency is extremely low, influences the progress of optical fibre gyro test job.In addition, because when the measuring fiber gyro, different method of testings is to position or the speed and the test duration requirement difference of turntable, so test macro should have enough dirigibilities aspect the selection of method of testing.Answer optical fibre gyro tester's requirement, we develop the intelligent test system that moves on the test host computer, can be by tester's programmed settings testing process, and the work of locking of completing place or speed and collection optical fibre gyro output data automatically.Improved the utilization factor of testing efficiency and turntable like this, greatly.And, in test macro, add the data in real time analytic function, can understand the roughly performance of tested gyro immediately.
Summary of the invention
The objective of the invention is the deficiency according to existing method of testing, a kind of fibre optic gyroscope method of testing is provided, this method combines turntable control and acquisition system, realizes the robotization of optical fibre gyro test, reduces human intervention, improves testing efficiency.
The object of the invention realizes being finished by following technical scheme:
A kind of fibre optic gyroscope method of testing is characterized in that this method comprises:
(a) set testing process on control computer, described testing process comprises plural step;
(b) based on testing process described in the step (a), control computer sends testing process first step steering order to turntable;
(c) turntable locks onto correspondence position and/or speed, and every 100ms is to the feedback information of computing machine transmission about turntable current location and state, control computer judges whether revolving table position and/or speed meet testing process setting accuracy scope, in this way, time-delay 3s sends acquired signal to computing machine;
(d) based on testing process described in the step (a), the optical fibre gyro acquisition module is gathered the data of optical fibre gyro;
(e) control computer control optical fibre gyro acquisition module stops to gather, and turntable sends testing process next step steering order and repeating step (c), (d), until finishing the testing process that sets.
Described testing process is set with the acquisition parameter corresponding to described plural step, comprising: turntable rate parameter, revolving table position parameter, turntable wave parameter, gather duration.
The every frame period 3ms of described steering order, each byte interval is not less than 1ms.
Described testing process includes: zero testing, constant multiplier test and threshold testing step.
Step (d) also comprises the steps: Frame and the verification that described optical fibre gyro acquisition module identification optical fibre gyro port sends, correct after, extract corresponding axis to data and temperature information, and show with curve form output.
Advantage of the present invention is: testing process setting and turntable control have been integrated in the test macro of optical fibre gyro, improved testing efficiency greatly, reduced testing cost, reduced intervention artificial in the test process, shortened the test duration, the industrialization of fibre optic gyroscope has been very helpful.
Description of drawings
Fig. 1 is an optical fibre gyro intelligent test system hardware system synoptic diagram;
Fig. 2 is a fibre optic gyroscope method of testing synoptic diagram of the present invention.
Embodiment
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
Shown in Fig. 1-2, label 1-4: control computer 1, optical fibre gyro acquisition module 2, turntable 3, optical fibre gyro 4.
As shown in Figure 1, whole hardware of the present invention is made up of optical fibre gyro 4 on control computer 1, optical fibre gyro acquisition module 2, turntable 3, the turntable, control computer 1 plays control turntable 3 and coordinates the function that control optical fibre gyro acquisition module 2 carries out the optical fibre gyro data acquisition, it is the primary controller of total system, optical fibre gyro acquisition module 2 is responsible for receiving the optical fibre gyro data and is sent to control computer 1, and turntable 3 is responsible for locking position or the speed of optical fibre gyro 4 to be tested on it.
The test intermediate station control that this example adopts with collecting method is: as Fig. 2, at first the tester writes testing process, control computer 1 sends the control corresponding instruction for turntable 3 after reading this flow process, control turntable 3 locks onto relevant position or speed, the 3s that delays time again after it reaches certain accuracy rating settles out to guarantee turntable, at this moment optical fibre gyro acquisition module 2 begins to gather the data of optical fibre gyro 4, and after the duration collection data according to flow setting, control computer 1 is cut off optical fibre gyro acquisition module 2 automatically and is stopped to gather, and to the next steering order of turntable 3 transmissions, repeat the work of front, like this turntable 3 can with optical fibre gyro data acquisition synchro control, finish up to whole flow processs, finish whole test job.
Present embodiment is in the specific implementation: before the test beginning turntable 3 control ports are set earlier, its baud rate is 119200bps, 1 position of rest, no parity position.After beginning test,, instruct interval 3ms between wherein per two bytes with 10 byte representations by the sending controling instruction that requires of control computer 1 according to turntable 3 communication protocols.Turntable 3 receives instruction back and carries out corresponding actions, send feedback information for control computer 1 every 100ms, and this information is with 11 byte representations, reaction turntable 3 current locations and state.Control computer 1 is according to the feedback information of turntable 3, calculates turntable 3 positions or speed, its meet flow process default after, the 3s that delays time again guarantees that the turntable state is stable, begins data acquisition again.And when instructing to control turntable 3 carries out the position when switching, if the differential seat angle of two positions is less than 1 °, steering order can make turntable 3 rotate the other way around, thereby reduces the definite error in position.
Present embodiment acquisition method performance test and detection case are as follows:
The single axle table TD-450 of Chinese shipbuilding industry the six or three the May 4th institute is used in test, the homemade fibre optic gyroscope HT-MFOG-11 of test use.
In order better to observe the output of optical fibre gyro data, in the data that show current optical fibre gyro aspect the control computer graphic presentation in the two-dimensional coordinate axle in real time, transverse axis is the time, the longitudinal axis is a data value, and show the real time status of current turntable aside, so that observe, that guarantees to test is normal.
Claims (5)
1. fibre optic gyroscope method of testing is characterized in that this method comprises:
(a) set testing process on control computer, described testing process comprises plural step;
(b) based on testing process described in the step (a), control computer sends testing process first step steering order to turntable;
(c) turntable locks onto correspondence position and/or speed, and every 100ms is to the feedback information of computing machine transmission about turntable current location and state, control computer judges whether revolving table position and/or speed meet testing process setting accuracy scope, in this way, time-delay 3s sends acquired signal to computing machine;
(d) based on testing process described in the step (a), the optical fibre gyro acquisition module is gathered the data of optical fibre gyro;
(e) control computer control optical fibre gyro acquisition module stops to gather, and turntable sends testing process next step steering order and repeating step (c), (d), until finishing the testing process that sets.
2. a kind of fibre optic gyroscope method of testing according to claim 1, it is characterized in that: described testing process is set with the acquisition parameter corresponding to described plural step, comprising: turntable rate parameter, revolving table position parameter, turntable wave parameter, gather duration.
3. a kind of fibre optic gyroscope method of testing according to claim 1 is characterized in that: the every frame period 3ms of described steering order, each byte interval is not less than 1ms.
4. a kind of fibre optic gyroscope method of testing according to claim 1 is characterized in that described testing process includes: zero testing, constant multiplier test and threshold testing step.
5. a kind of fibre optic gyroscope method of testing according to claim 1, it is characterized in that step (d) also comprises the steps: Frame and verification that described optical fibre gyro acquisition module identification optical fibre gyro port sends, after correct, extract corresponding axis to data and temperature information, and show with curve form output.
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| CN2010106107894A CN102128637A (en) | 2010-12-29 | 2010-12-29 | Method for testing optical fiber gyroscope |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353387A (en) * | 2011-08-25 | 2012-02-15 | 西安电子科技大学 | Automated testing system and method for index parameters of fiber optic gyro |
| CN102519487A (en) * | 2011-12-14 | 2012-06-27 | 浙江大学 | Method for evaluating resolution of fiber-optic gyroscope |
| CN102519486A (en) * | 2011-12-14 | 2012-06-27 | 浙江大学 | Method for evaluating threshold of fiber optic gyro |
| CN102818984A (en) * | 2012-08-15 | 2012-12-12 | 浙江大学 | Method for rapidly testing optical fibre gyro signal processing circuit |
| CN105115520A (en) * | 2015-08-25 | 2015-12-02 | 北京航天时代光电科技有限公司 | Fiber-optic gyroscope and inertial measurement unit automated multi-channel test system |
| CN105910622A (en) * | 2016-04-06 | 2016-08-31 | 中国航空工业集团公司上海航空测控技术研究所 | System for comprehensive testing of performance of gyro combination and testing method thereof |
| CN106323338A (en) * | 2016-08-17 | 2017-01-11 | 中国船舶重工集团公司第七〇七研究所 | Testing system and method for automatically evaluating performance of laser gyroscopes |
| CN106908079A (en) * | 2015-12-23 | 2017-06-30 | 北京自动化控制设备研究所 | Three axis optical fibre gyro combines constant multiplier automatic test device and method of testing |
| CN110068355A (en) * | 2019-05-30 | 2019-07-30 | 中国船舶重工集团公司第七0七研究所 | A kind of optic fiber gyroscope graduation factor index high precision measurement method |
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| CN101750098A (en) * | 2009-12-31 | 2010-06-23 | 上海亨通光电科技有限公司 | Two-axis turnplate control method in fiber gyroscope threshold testing |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353387A (en) * | 2011-08-25 | 2012-02-15 | 西安电子科技大学 | Automated testing system and method for index parameters of fiber optic gyro |
| CN102353387B (en) * | 2011-08-25 | 2013-08-14 | 西安电子科技大学 | Automated testing system and method for index parameters of fiber optic gyro |
| CN102519487A (en) * | 2011-12-14 | 2012-06-27 | 浙江大学 | Method for evaluating resolution of fiber-optic gyroscope |
| CN102519486A (en) * | 2011-12-14 | 2012-06-27 | 浙江大学 | Method for evaluating threshold of fiber optic gyro |
| CN102519487B (en) * | 2011-12-14 | 2014-06-04 | 浙江大学 | Method for evaluating resolution of fiber-optic gyroscope |
| CN102818984A (en) * | 2012-08-15 | 2012-12-12 | 浙江大学 | Method for rapidly testing optical fibre gyro signal processing circuit |
| CN105115520A (en) * | 2015-08-25 | 2015-12-02 | 北京航天时代光电科技有限公司 | Fiber-optic gyroscope and inertial measurement unit automated multi-channel test system |
| CN105115520B (en) * | 2015-08-25 | 2018-02-09 | 北京航天时代光电科技有限公司 | A kind of optical fibre gyro and used group automation multiple channel test system |
| CN106908079A (en) * | 2015-12-23 | 2017-06-30 | 北京自动化控制设备研究所 | Three axis optical fibre gyro combines constant multiplier automatic test device and method of testing |
| CN105910622A (en) * | 2016-04-06 | 2016-08-31 | 中国航空工业集团公司上海航空测控技术研究所 | System for comprehensive testing of performance of gyro combination and testing method thereof |
| CN106323338A (en) * | 2016-08-17 | 2017-01-11 | 中国船舶重工集团公司第七〇七研究所 | Testing system and method for automatically evaluating performance of laser gyroscopes |
| CN106323338B (en) * | 2016-08-17 | 2019-11-26 | 中国船舶重工集团公司第七〇七研究所 | A kind of test macro and its test method of automatic evaluation lasergyro performance |
| CN110068355A (en) * | 2019-05-30 | 2019-07-30 | 中国船舶重工集团公司第七0七研究所 | A kind of optic fiber gyroscope graduation factor index high precision measurement method |
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Application publication date: 20110720 |