CN102519483A - Self-detecting method for working state of gyro - Google Patents
Self-detecting method for working state of gyro Download PDFInfo
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- CN102519483A CN102519483A CN2011103807466A CN201110380746A CN102519483A CN 102519483 A CN102519483 A CN 102519483A CN 2011103807466 A CN2011103807466 A CN 2011103807466A CN 201110380746 A CN201110380746 A CN 201110380746A CN 102519483 A CN102519483 A CN 102519483A
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Abstract
The invention relates to a self-detecting method for the working state of a gyro, which comprises enabling output of a constant current source circuit to serve as a self-detecting signal, and sending the signal into a self-detecting coil in a gyroscope to serve as interference torque, enabling the signal to pass by a closed feedback system in a velocity gyro assembly to form an output signal, and performing comparison calculation on polarization and amplification factors of the output signal and the self-detecting signal; and comparing the calculation result with a set normal output range of the gyro. The self-detecting method for the working state of the gyro achieves self-detection of the gyro under a static state, meets the requirement of gyro test coverage detection after assembly, and is proved by mechanical environment tests.
Description
Technical field
The present invention relates to a kind of gyro detection method, be used for detecting in real time and judge whether operate as normal of gyro.
Background technology
The rate gyro combination is a kind of real-time attitude measurement control system, is used to measure the angular motion around three orthogonal axis.The test of gyro can obtain the respective corners movement input signal through rotation on turntable under the normal condition; After but in case rate gyro makes up the physical device of packing into; Because the limitation of equipment; Therefore be not easy to be rotated motion, must adopt a kind of new detection method, under the situation of slewing not, can detect the real-time working situation of segregation rate gyro combination and whether normally judge.
Summary of the invention
The object of the invention provides a kind of detection method certainly of gyro duty, and it provides a kind of from the detection method for the gyro of working under the stationary state, can satisfy rate gyro combined test inspection requirements under specific condition.
Technical solution of the present invention:
A kind of detection method certainly of gyro duty may further comprise the steps:
1] output of the constant-current source circuit that tester is inner selects a certain road of control rate gyro combination to detect as the input quantity of self-test signal through switch;
2] self-test signal is sent into the disturbance torque that the inner self check coil of gyroscope of rate gyro combination applies gyroscope as the outside, and this disturbance torque forms the output signal through the inner closed feedback system of rate gyro combination;
3] the output signal is sent into the control computer in the tester, and output signal and self-test signal are carried out the contrast calculating of polarity and enlargement factor;
4] the normal output area of gyro of result of calculation and setting is compared, if result of calculation is normal, detection of end; Otherwise, with red display misdata is proposed caution, and provides the prompting of " defective ".
Above-mentioned constant-current source circuit is output as the direct current signal of 50 ± 2mA.
Above-mentioned switch comprises first K switch 1 and second switch K2; Whether said first K switch, 1 control self-test signal is exported, and which gyro said second switch K2 control self-test signal exports to.
The normal output area of the gyro of above-mentioned setting is 5.5 ± 1.5 °/s.
The present invention has following advantage:
1, the present invention has realized the detection certainly of the gyro of working under the stationary state, satisfies the gyro test spreadability inspection requirements after whole bullet assembles, and puts in order checkings such as playing the auxiliary tone test through dynamic environmental test and target range, has reached its intended purposes and requirement;
2, the present invention has increased the test coverage of stationary state gyro through electric signal simulation angular motion input signal;
3, the present invention carries out data interpretation to test data, has reduced operator's calculated amount, has improved testing efficiency;
4, the present invention in time with red caution, provides help to the location promptly and accurately of fault to misdata.
Description of drawings
Fig. 1 is the theory diagram of detection method certainly (a tunnel is example wherein with gyro) of gyro duty of the present invention.
Embodiment
The step of the method that detects certainly of gyro duty of the present invention is following:
1] at constant-current source circuit of tester indoor design, the output of this circuit selects a certain road of control rate gyro combination to detect as the input quantity of self-test signal through switch;
2] in the gyroscope indoor design of rate gyro combination the self check coil, through injection current in the self check coil, thereby gyroscope is applied disturbance torque, through the inner closed feedback system of rate gyro combination, form final output signal.
3] will export signal and send into control computer (be included in tester in), and carry out the contrast of polarity and enlargement factor through software and self-test signal and calculate, and compare, draw whether qualified conclusion with the normal range of setting.Misdata is proposed caution with red display, and provide the prompting of " defective ".
As shown in Figure 1, the direct current signal of the 50 ± 2mA of self-test signal circuit output in the rate gyro assembled unit tester.Whether first K switch, 1 this signal of control is exported.Which gyro this signal of second switch K2 control exports to.After control computer collects gyro output signal, judge whether to satisfy the scope of 5.5 ± 1.5 °/s through software.If in scope, output " qualified " printed words; If go beyond the scope, with red display " defective " printed words.
The principle of the invention: the equipment that this method mainly adopts is rate gyro assembled unit tester.This tester is mainly realized above-mentioned functions from software and hardware two aspects.Under the situation of rate gyro combined stationary and closed circuit working, through combination applies certain fixedly self-test signal of magnitude to rate gyro, make the rate gyro combined system disturbance torque occur, in closed loop feedback system, form final output quantity; Output data according to the rate gyro combination is isolated the output signal corresponding to self-test signal; Through software the output signal is calculated and compares with input signal, confirming whether gyro has normally fed back this input self-test signal, with this as the judgement gyro foundation of operate as normal whether.
Claims (4)
1. the detection method certainly of a gyro duty is characterized in that: may further comprise the steps:
1] output of the constant-current source circuit that tester is inner selects a certain road of control rate gyro combination to detect as the input quantity of self-test signal through switch;
2] self-test signal is sent into the disturbance torque that the inner self check coil of gyroscope of rate gyro combination applies gyroscope as the outside, and this disturbance torque forms the output signal through the inner closed feedback system of rate gyro combination;
3] the output signal is sent into the control computer in the tester, and output signal and self-test signal are carried out the contrast calculating of polarity and enlargement factor;
4] the normal output area of gyro of result of calculation and setting is compared, if result of calculation is normal, detection of end; Otherwise, with red display misdata is proposed caution, and provides the prompting of " defective ".
2. the detection method certainly of gyro duty according to claim 1 is characterized in that: said constant-current source circuit is output as the direct current signal of 50 ± 2mA.
3. the detection method certainly of gyro duty according to claim 1 is characterized in that: said switch comprises first K switch 1 and second switch K2; Whether said first K switch, 1 control self-test signal is exported, and which gyro said second switch K2 control self-test signal exports to.
4. the detection method certainly of gyro duty according to claim 1 is characterized in that: the normal output area of the gyro of said setting is 5.5 ± 1.5 °/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103807466A CN102519483A (en) | 2011-11-25 | 2011-11-25 | Self-detecting method for working state of gyro |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103807466A CN102519483A (en) | 2011-11-25 | 2011-11-25 | Self-detecting method for working state of gyro |
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| CN102519483A true CN102519483A (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103807466A Pending CN102519483A (en) | 2011-11-25 | 2011-11-25 | Self-detecting method for working state of gyro |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576008A (en) * | 2012-07-19 | 2014-02-12 | 鸿富锦精密工业（深圳）有限公司 | Electronic device capable of indicating hardware fault through sound, and method |
| CN105973267A (en) * | 2015-12-31 | 2016-09-28 | 西安航天精密机电研究所 | Gyro working state self-detection system and method thereof |
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| CN101033968A (en) * | 2007-01-22 | 2007-09-12 | 北京航空航天大学 | Monitoring apparatus suitable for interferometric fiber optic gyroscope |
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| CN102128621A (en) * | 2010-12-23 | 2011-07-20 | 北京大学 | Interference optical fiber gyroscope for measuring multidimensional vector |
| CN202329648U (en) * | 2011-11-25 | 2012-07-11 | 西安航天精密机电研究所 | Rate gyroscope combined unit tester |
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2011
- 2011-11-25 CN CN2011103807466A patent/CN102519483A/en active Pending
Patent Citations (6)
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| US5883716A (en) * | 1997-07-15 | 1999-03-16 | Litton Systems, Inc. | Rate control loop for fiber optic gyroscope |
| CN101033968A (en) * | 2007-01-22 | 2007-09-12 | 北京航空航天大学 | Monitoring apparatus suitable for interferometric fiber optic gyroscope |
| CN201348506Y (en) * | 2008-11-21 | 2009-11-18 | 陕西华燕航空仪表有限公司 | Framework self-detection torquer of rate gyro |
| CN102128621A (en) * | 2010-12-23 | 2011-07-20 | 北京大学 | Interference optical fiber gyroscope for measuring multidimensional vector |
| CN102128638A (en) * | 2010-12-29 | 2011-07-20 | 上海亨通光电科技有限公司 | Method for detecting optical fiber gyroscope semifinished product detection board |
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| 刘瑞鑫等: "干涉式光纤速率陀螺仪的自检测技术", 《光学仪器》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576008A (en) * | 2012-07-19 | 2014-02-12 | 鸿富锦精密工业（深圳）有限公司 | Electronic device capable of indicating hardware fault through sound, and method |
| CN105973267A (en) * | 2015-12-31 | 2016-09-28 | 西安航天精密机电研究所 | Gyro working state self-detection system and method thereof |
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Application publication date: 20120627 |