CN104713537A - Frequency stabilization control method for effectively enlarging temperature-variable frequency stabilization adjusting range of laser gyro - Google Patents
Frequency stabilization control method for effectively enlarging temperature-variable frequency stabilization adjusting range of laser gyro Download PDFInfo
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- CN104713537A CN104713537A CN201310675494.9A CN201310675494A CN104713537A CN 104713537 A CN104713537 A CN 104713537A CN 201310675494 A CN201310675494 A CN 201310675494A CN 104713537 A CN104713537 A CN 104713537A
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- frequency stabilization
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
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- Radar, Positioning & Navigation (AREA)
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention belongs to the technical field of laser gyro frequency stabilization, and relates to a frequency stabilization control method for effectively enlarging the temperature-variable frequency stabilization adjusting range of a laser gyro. By utilizing the change rules of a mould along with the temperature, the start point of a frequency stabilization work mould is set in the reverse direction according to the temperature section of an electrified gyro so as to effectively enlarge the adjusting range of the frequency stabilization system during a temperature variable process. The provided method can enlarge the frequency stabilization adjusting ranged to 1 to 2 work moulds for a laser gyro, which starts to work at different temperatures, during the temperature variable process, and is capable of effectively reducing the risk of laser gyro variable-temperature frequency stabilization overflow under conditions of strong impact, large overload, and large temperature range.
Description
Technical field
The invention belongs to laser gyro Frequency Stabilization Technique, relate to a kind of path length control method of effective improving laser gyro alternating temperature frequency stabilization range of adjustment.
Background technology
In laser gyro be with optical maser wavelength for " ruler ", utilize principle of interference to measure the rotational angular velocity in carrier relative inertness space, so the accuracy of optical maser wavelength or frequency directly can affect measuring accuracy.Therefore for laser is applied to field of precision measurement, then require that the frequency of laser instrument itself is stablized, but the laser frequency stabilization of making, then should be realized by Frequency Stabilization Technique, namely drive by synchronous two the PZT assemblies connecting catoptron, the length variations that compensation resonant cavity occurs at optical propagation direction because of temperature, pass through frequency stabilization, under can ensureing high/low temperature, chamber is long to remain unchanged, and laser gyro frequency is locked in centre frequency place.
The frequency stabilization scheme that prior art is taked, normally gyro powers on and selects intermediate die to carry out constant frequency operation.The shortcoming selecting intermediate die to carry out constant frequency operation is, when the change of cavity length amount of gyro under high/low temperature is larger, often occurs that frequency stabilization range of adjustment is not enough, causes frequency stabilization to be overflowed, cause gyro to export umber of pulse abnormal.
Summary of the invention
Object of the present invention: the path length control method that a kind of effective improving laser gyro alternating temperature frequency stabilization range of adjustment is provided.
Technical scheme of the present invention: a kind of path length control method of effective improving laser gyro alternating temperature frequency stabilization range of adjustment, it utilizes mould variation with temperature rule, temperature section when working on power according to gyro, carry out the starting point that constant frequency operation mould is set in the other direction, thus effectively increase the range of adjustment of alternating temperature process frequency stabilization system.
The path length control method of described effective improving laser gyro alternating temperature frequency stabilization range of adjustment,
When gyro powers on, if temperature < 0 DEG C, frequency stabilization establishes centre to keep right mould;
When gyro powers on, if temperature > 40 DEG C, frequency stabilization establishes centre to keep left mould;
When gyro powers on, if temperature is between 0 ~ 40 DEG C, intermediate die is established in frequency stabilization.
The path length control method of described effective improving laser gyro alternating temperature frequency stabilization range of adjustment, its concrete steps are as follows:
3) gyro powers on, and detects gyro work at present real time temperature T;
4) according to Current Temperatures T, constant frequency operation chooses different frequency stabilization starting points,
If T < 0 DEG C, frequency stabilization starting point is set to 2500;
If T > 40 DEG C, frequency stabilization starting point is set to 1500;
If T is between 0 ~ 40 DEG C, frequency stabilization starting point is set to 2000.
Advantage of the present invention and beneficial effect are: the frequency stabilization range of adjustment of the alternating temperature process that laser gyro can be started working by this path length control method at different temperatures increases 1 ~ 2 Working mould, the method is under the conditions such as thump, large overload, large-temperature range, significant to reduction laser gyro alternating temperature frequency stabilization spilling risk.Use the verification experimental verification of this novel path length control method to show, after this path length control method of use, successfully eliminate the frequency stabilization overflow fault of former gyro, significantly reduce the frequency stabilization of gyro alternating temperature and overflow risk, drastically increase the alternating temperature reliability of laser gyro.This novel path length control method can be applied to all kinds of laser gyro, has good future in engineering applications.
Accompanying drawing explanation
Fig. 1 is mould variation with temperature curve in the present invention.
Embodiment
Below in conjunction with Fig. 1, the present invention is further illustrated:
Its ultimate principle of path length control method of the present invention's effective improving laser gyro alternating temperature frequency stabilization range of adjustment is mould variation with temperature rule according to Fig. 1, after gyro powers on, frequency stabilization modeling starting point is not always intermediate point, but temperature section when working according to gyro, the starting point of constant frequency operation mould is set, is specially:
when gyro powers on, if temperature < 0 DEG C, frequency stabilization establishes centre to keep right mould (starting point 2500), can increase the frequency stabilization range of adjustment of a mould during intensification, also has enough frequency stabilizations to regulate surplus when guaranteeing to lower the temperature simultaneously.
when gyro powers on, if temperature > 40 DEG C, frequency stabilization establishes centre to keep left mould (starting point 1500), can increase the frequency stabilization range of adjustment of a mould during cooling, also has enough adjustment surpluses when guaranteeing to heat up simultaneously.
when gyro powers on, if temperature is between 0 ~ 40 DEG C, intermediate die (starting point 2000) is established in frequency stabilization, and now no matter heating up or lowering the temperature all has corresponding frequency stabilization to regulate surplus.
Temperature section when working according to gyro, arranges different frequency stabilization starting points, thus effectively can increase the frequency stabilization range of adjustment of 1 ~ 2 mould.
Provide the path length control method of the present invention's effective improving laser gyro alternating temperature frequency stabilization range of adjustment below, its concrete steps are as follows:
1) gyro powers on, and detects gyro work at present real time temperature T;
2) according to Current Temperatures T, constant frequency operation chooses different frequency stabilization starting points.
If T < 0 DEG C, frequency stabilization starting point is set to 2500
If T > 40 DEG C, frequency stabilization starting point is set to 1500
If T is between 0 ~ 40 DEG C, frequency stabilization starting point is set to 2000
Illustrate: traditional path length control method, and though namely constant frequency operation modeling time working temperature point, all select the intermediate die near 2000 code values.When the change of cavity length amount of gyro under high/low temperature is larger, often causes frequency stabilization range of adjustment not enough, occur frequency stabilization overflow fault, cause gyro to export umber of pulse abnormal.And adopt initial working temperature point, different frequency stabilization starting points is set, increases the frequency stabilization range of adjustment of 1 ~ 2 mould, thus greatly reduce the probability of happening of frequency stabilization overflow fault, thus greatly improve the alternating temperature functional reliability of this gyro.
In a word, the frequency stabilization range of adjustment that laser gyro can work on power by path length control new departure at different temperatures that arrange different frequency stabilization starting point based on the temperature spot that powers on increases 1 ~ 2 Working mould, this is under the conditions such as thump, large overload, large-temperature range, and the method is significant to reduction laser gyro alternating temperature frequency stabilization spilling risk.Use the verification experimental verification of this novel path length control method to show, after this path length control method of use, successfully eliminate the frequency stabilization overflow fault of former gyro, significantly reduce the frequency stabilization of gyro alternating temperature and overflow risk, drastically increase the alternating temperature reliability of laser gyro.This novel path length control method can be applied to other all kinds of laser gyro, has good future in engineering applications.
Claims (3)
1. the path length control method of an effective improving laser gyro alternating temperature frequency stabilization range of adjustment, it is characterized in that, utilize mould variation with temperature rule, temperature section when working on power according to gyro, carry out the starting point that constant frequency operation mould is set in the other direction, thus effectively increase the range of adjustment of alternating temperature process frequency stabilization system.
2. the path length control method of effective improving laser gyro alternating temperature frequency stabilization range of adjustment according to claim 1, is characterized in that,
When gyro powers on, if temperature < 0 DEG C, frequency stabilization establishes centre to keep right mould;
When gyro powers on, if temperature > 40 DEG C, frequency stabilization establishes centre to keep left mould;
When gyro powers on, if temperature is between 0 ~ 40 DEG C, intermediate die is established in frequency stabilization.
3. the path length control method of effective improving laser gyro alternating temperature frequency stabilization range of adjustment according to claim 2, it is characterized in that, its concrete steps are as follows:
1) gyro powers on, and detects gyro work at present real time temperature T;
2) according to Current Temperatures T, constant frequency operation chooses different frequency stabilization starting points,
If T < 0 DEG C, frequency stabilization starting point is set to 2500;
If T > 40 DEG C, frequency stabilization starting point is set to 1500;
If T is between 0 ~ 40 DEG C, frequency stabilization starting point is set to 2000.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675494.9A CN104713537B (en) | 2013-12-11 | 2013-12-11 | A kind of path length control method of effective improving laser gyro alternating temperature frequency stabilization adjustable range |
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| CN201310675494.9A CN104713537B (en) | 2013-12-11 | 2013-12-11 | A kind of path length control method of effective improving laser gyro alternating temperature frequency stabilization adjustable range |
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| CN104713537A true CN104713537A (en) | 2015-06-17 |
| CN104713537B CN104713537B (en) | 2017-10-31 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100014092A1 (en) * | 2007-05-18 | 2010-01-21 | Honeywell | Gyroscope mode shift detection and scale factor compensation |
| US20100134007A1 (en) * | 2008-12-03 | 2010-06-03 | Larry Andrew Booker | System and method for gyrotron power regulation |
| CN102445198A (en) * | 2011-09-19 | 2012-05-09 | 中国航空工业第六一八研究所 | Alternating-current frequency stabilization system and method for four-frequency laser gyroscope |
| CN102506846A (en) * | 2011-09-29 | 2012-06-20 | 中国航空工业第六一八研究所 | Dispersion control method for zeeman laser gyroscope |
| CN102620719A (en) * | 2012-04-17 | 2012-08-01 | 西安精准测控有限责任公司 | Obliquity sensor with high accuracy and temperature compensation and dynamic compensation method thereof |
| CN202361996U (en) * | 2011-09-19 | 2012-08-01 | 中国航空工业第六一八研究所 | Connection reliability detecting system for laser gyro frequency stabilizing component |
-
2013
- 2013-12-11 CN CN201310675494.9A patent/CN104713537B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100014092A1 (en) * | 2007-05-18 | 2010-01-21 | Honeywell | Gyroscope mode shift detection and scale factor compensation |
| US20100134007A1 (en) * | 2008-12-03 | 2010-06-03 | Larry Andrew Booker | System and method for gyrotron power regulation |
| CN102445198A (en) * | 2011-09-19 | 2012-05-09 | 中国航空工业第六一八研究所 | Alternating-current frequency stabilization system and method for four-frequency laser gyroscope |
| CN202361996U (en) * | 2011-09-19 | 2012-08-01 | 中国航空工业第六一八研究所 | Connection reliability detecting system for laser gyro frequency stabilizing component |
| CN102506846A (en) * | 2011-09-29 | 2012-06-20 | 中国航空工业第六一八研究所 | Dispersion control method for zeeman laser gyroscope |
| CN102620719A (en) * | 2012-04-17 | 2012-08-01 | 西安精准测控有限责任公司 | Obliquity sensor with high accuracy and temperature compensation and dynamic compensation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 段靖远，等: "《光纤陀螺的温度试验及温度补偿方法研究》", 《山西大学学报(自然科学版)》 * |
| 郭创，等: "《激光陀螺温度特征点选择及其补偿》", 《光电工程》 * |
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| CN104713537B (en) | 2017-10-31 |
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