CN104613985B - The method for improving optical fibre gyro interchangeability in navigation system - Google Patents
The method for improving optical fibre gyro interchangeability in navigation system Download PDFInfo
- Publication number
- CN104613985B CN104613985B CN201510075464.3A CN201510075464A CN104613985B CN 104613985 B CN104613985 B CN 104613985B CN 201510075464 A CN201510075464 A CN 201510075464A CN 104613985 B CN104613985 B CN 104613985B
- Authority
- CN
- China
- Prior art keywords
- optical fibre
- fibre gyro
- zero
- gyro
- constant multiplier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
-
- 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
- G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
Abstract
The invention discloses a kind of method for improving optical fibre gyro interchangeability in navigation system, comprise the following steps：1) optical fibre gyro input/output model is set up：F=K* Ω+F0；2) the actual constant multiplier of optical fibre gyro and zero inclined test；3) for optical fibre gyro j, constant multiplier and zero offset compensation are carried out to the output quantity of optical fibre gyro by compensating module, the optical fibre gyro output quantity compensation model of compensating module is：The present invention ensure that the constant multiplier and zero inclined uniformity of the Different Individual of same model optical fibre gyro.
Description
Technical field
The present invention relates to optical fibre gyro interchangeability in fiber-optics gyroscope field, more particularly to a kind of raising navigation system
Method.
Background technology
The constant multiplier of optical fibre gyro and zero be partially optical fibre gyro important parameter, must during navigation system application optical fibre gyro
The two parameters of optical fibre gyro must be demarcated, by the two parameter read-in navigation calculation programs of optical fibre gyro after demarcation
In, with the navigation attitude information of resolving system.The demarcation of navigation system is the work taken very much, and the nominal time typically exists
Several weeks, if in calibration process, there is exception or failure, it is necessary to change optical fiber top in some optical fibre gyro even more than the several months
Spiral shell, due to the constant multiplier of the gyro after replacing and zero partially with to be replaced the parameter of optical fibre gyro inconsistent, before this can cause
Staking-out work is failed, it is necessary to re-scale.
Therefore, for same model optical fibre gyro, the uniformity for improving Different Individual parameter is conducive to improving optical fibre gyro
Interchangeability, facilitate the application of navigation system, it is significant for navigation system calibration optical fibre gyro.
The content of the invention
For deficiencies of the prior art, optical fiber in navigation system is improved it is an object of the invention to provide one kind
The method of gyro interchangeability, ensure that the constant multiplier and zero inclined uniformity of the Different Individual of same model optical fibre gyro.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is such：One kind is improved in navigation system
The method of optical fibre gyro interchangeability, it is characterised in that：Comprise the following steps：
1) optical fibre gyro input/output model is set up：
F=K* Ω+F0…………………………(1)
In formula：Ω is the input quantity of optical fibre gyro, and F is optical fibre gyro output quantity, F0Zero for optical fibre gyro is inclined, and K is light
The constant multiplier of fine gyro；
2) the actual constant multiplier of optical fibre gyro and zero inclined test：
By turntable M input angle speed Ω is provided to fibre optic gyroscopei, correspondingly the reality of optical fibre gyro is defeated under angular speed
Output is Fi,
F0Actual zero for optical fibre gyro is inclined, and K is the actual constant multiplier of optical fibre gyro；
3) for optical fibre gyro j, by 2) testing out its actual output quantity Fj, actual scale factor Kj, and it is actual zero inclined
F0j, constant multiplier and zero offset compensation are then carried out to the output quantity of optical fibre gyro by compensating module, wherein, the light of compensating module
Fine gyro output quantity compensation model is：
In formula：F'jOutput quantity after being compensated for optical fibre gyro j, KsdFor the standard scale factor of setting.
Compared with prior art, the invention has the advantages that：By presetting standard scale parameter and standard zero partially,
Compensated partially by the actual constant multiplier and actual zero of the Different Individual to same model optical fibre gyro, make same model light
The constant multiplier of the Different Individual of fine gyro and zero partially partially consistent with the standard scale factor and standard zero of setting, so that light
The replacing of fine gyro will not be impacted to the demarcation of navigation system, it is to avoid repeat navigation system calibration, so as to be conducive to
The interchangeability of optical fibre gyro is improved, and ensures the stability of navigation system.
Brief description of the drawings
Fig. 1 is theory diagram of the invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment：Referring to Fig. 1, the method for optical fibre gyro interchangeability, the optical fibre gyro bag in a kind of raising navigation system
Light path part, probe portion and debug circuit part are included, carries out being fed back to light path part by debug circuit part, together
When exported by output module, and output module is compensated；It specifically includes following steps：
1) optical fibre gyro input/output model is set up：
F=K* Ω+F0…………………………(1)
In formula：Ω is the input quantity of optical fibre gyro, and F is optical fibre gyro output quantity, F0Zero for optical fibre gyro is inclined, and K is light
The constant multiplier of fine gyro.
2) the actual constant multiplier of optical fibre gyro and zero inclined test：
By turntable M input angle speed Ω is provided to fibre optic gyroscopei, correspondingly the reality of optical fibre gyro is defeated under angular speed
Output is Fi,
F0Actual zero for optical fibre gyro is inclined, and K is the actual constant multiplier of optical fibre gyro.
3) for optical fibre gyro j, by 2) testing out its actual output quantity Fj, actual scale factor Kj, and it is actual zero inclined
F0j, constant multiplier and zero offset compensation are then carried out to the output quantity of optical fibre gyro by compensating module, wherein, the light of compensating module
Fine gyro output quantity compensation model is：
In formula：F'jOutput quantity after being compensated for optical fibre gyro j, KsdFor standard scale factor, FsdIt is inclined for standard zero；Ksd：
The value that constant multiplier will be compensated, such as will compensate to 1000, then the 1000 standard scale factor to set, be compensated
10000, then 10000 be established standardses constant multiplier, and the amount, according to customer demand or depending on being actually needed, is a precognition in advance
Value；Also its is handled and (cut zero partially) partially because navigation system calibration goes out gyro zero, therefore directly by standard
Zero is set as 0 partially；So, the optical fibre gyro output quantity compensation model of compensating module is：
4) experiment and result of the test
According to method 2) test certain model optical fibre gyro actual constant multiplier and zero partially, then according to method pair 3)
The output quantity of certain model optical fibre gyro is compensated, and is then carried out reversely deriving calculating according to the output quantity after compensation, is mended
Constant multiplier and zero after repaying is inclined；The constant multiplier and zero inclined data of optical fibre gyro are as shown in table 1 before and after experiment.
The optic fiber gyroscope graduation factor of table 1 and zero inclined data
, it can be seen that being carried out by optical fibre gyro output quantity compensation model after constant multiplier and zero offset compensation, energy from table 1
Enough make the constant multiplier after compensation and zero partially consistent (error range allows interior), so that the replacing of optical fibre gyro will not be to navigation
The stability of system is impacted.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than restriction technologies side
Case, it will be understood by those within the art that, those modify or equivalent substitution to technical scheme, and
The objective and scope of the technical program are not departed from, all should be covered among scope of the presently claimed invention.
Claims (1)
1. a kind of method for improving optical fibre gyro interchangeability in navigation system, it is characterised in that：Comprise the following steps：
1) optical fibre gyro input/output model is set up：
F=K* Ω+F0................................(1)
In formula：Ω is the input quantity of optical fibre gyro, and F is optical fibre gyro output quantity, F0Zero for optical fibre gyro is inclined, and K is optical fibre gyro
Constant multiplier；
2) the actual constant multiplier of optical fibre gyro and zero inclined test：
By turntable M input angle speed Ω is provided to fibre optic gyroscopei, correspond to the reality output amount of optical fibre gyro under angular speed
For Fi,
F0Actual zero for optical fibre gyro is inclined, and K is the actual constant multiplier of optical fibre gyro；
3) for optical fibre gyro j, by 2) testing out its actual output quantity Fj, actual constant multiplier Kj, and actual zero inclined F0j,
Then constant multiplier and zero offset compensation are carried out to the output quantity of optical fibre gyro by compensating module, wherein, the optical fiber of compensating module
Gyro output quantity compensation model is：
In formula：F'jOutput quantity after being compensated for optical fibre gyro j, KsdFor the standard scale factor of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510075464.3A CN104613985B (en) | 2015-02-12 | 2015-02-12 | The method for improving optical fibre gyro interchangeability in navigation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510075464.3A CN104613985B (en) | 2015-02-12 | 2015-02-12 | The method for improving optical fibre gyro interchangeability in navigation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104613985A CN104613985A (en) | 2015-05-13 |
| CN104613985B true CN104613985B (en) | 2017-09-29 |
Family
ID=53148543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510075464.3A Expired - Fee Related CN104613985B (en) | 2015-02-12 | 2015-02-12 | The method for improving optical fibre gyro interchangeability in navigation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104613985B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729333A (en) * | 2020-11-25 | 2021-04-30 | 北京仿真中心 | Segmented polynomial digital temperature compensation method suitable for silicon micro gyroscope |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660910A (en) * | 2009-09-30 | 2010-03-03 | 北京大学 | Low-noise dual-polarization interference optic fiber gyroscope |
| CN102494681A (en) * | 2011-12-06 | 2012-06-13 | 北京航空航天大学 | Difference double-interference type optical fiber gyroscope based on birefringence modulation |
| CN102650524A (en) * | 2012-04-25 | 2012-08-29 | 北京航空航天大学 | Differential dual-interference type closed loop fiber optic gyroscope based on birefringence modulation of wide frequency light source |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100494897C (en) * | 2006-12-31 | 2009-06-03 | 中国航天时代电子公司 | Optical fiber gyroscope using mixed optical path of polarization maintaining and low polarization |
-
2015
- 2015-02-12 CN CN201510075464.3A patent/CN104613985B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660910A (en) * | 2009-09-30 | 2010-03-03 | 北京大学 | Low-noise dual-polarization interference optic fiber gyroscope |
| CN102494681A (en) * | 2011-12-06 | 2012-06-13 | 北京航空航天大学 | Difference double-interference type optical fiber gyroscope based on birefringence modulation |
| CN102650524A (en) * | 2012-04-25 | 2012-08-29 | 北京航空航天大学 | Differential dual-interference type closed loop fiber optic gyroscope based on birefringence modulation of wide frequency light source |
Non-Patent Citations (2)
| Title |
|---|
| 光纤陀螺标度因数的测试误差分析;那永林等;《中国惯性技术学报》;20120831;第20卷(第4期);第472-477页 * |
| 高精度光纤陀螺标度因数测试研究;林强;《现代导航》;20130630(第3期);第186-190页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104613985A (en) | 2015-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103913168B (en) | A kind of Double-shaft rotary SINS transposition method | |
| CN103837093B (en) | spectral confocal sensor calibration system and method | |
| CN103328959A (en) | Substrate inspecting apparatus, substrate inspecting system, and method for displaying image for checking substrate inspection results | |
| US20070097368A1 (en) | System and method for calibrating a feeder for a surface mounting device | |
| CN104101363B (en) | A kind of gyroscope dynamic calibrating method measured for rotating carrier lateral attitude | |
| CN104613985B (en) | The method for improving optical fibre gyro interchangeability in navigation system | |
| US9494968B2 (en) | Clock skew analysis and optimization | |
| CN107063309B (en) | Rotary strapdown inertial navigation gyroscope scale error compensation method | |
| TW201743400A (en) | Method for aligning object on alignment platform by utilizing two cameras, method for aligning and gluing substrate of display panel, and method for aligning upper and lower substrates of display panel | |
| CN105783710A (en) | Position calibrating method and position calibrating device | |
| CN113064114B (en) | High-precision quick meter calibration method for multi-core electric energy meter | |
| CN103811988B (en) | Method for controlling power of optical fibre laser device | |
| CN103308880B (en) | A kind of calibration steps of multichannel analog amount current input module of production in enormous quantities | |
| CN102538824B (en) | Method suitable for MEMS IMU repeated multiple calibrating | |
| CN105215544A (en) | The three-dimensional alignment method of galvanometer and the colimated light system of employing thereof | |
| CN108871309B (en) | Cross-stripe correction method of fiber-optic gyroscope | |
| CN110657821B (en) | Calibration method of track detection inertia measurement device | |
| CN104504386B (en) | A kind of modularization AOI localization methods, system and burning IC equipment | |
| US20150109596A1 (en) | Method and system for achieving automatic compensation in glass substrate exposure process | |
| CN113532480B (en) | Assembly debugging method for improving assembly qualification rate of interference type fiber optic gyroscope | |
| CN106908080B (en) | A kind of general error compensating method of optical fibre gyro warm non-orthogonal angles deviation entirely | |
| CN103206966B (en) | Precision measurement error correction method for single-axis air bearing table | |
| KR20130047089A (en) | Sensor capable of calibration, sensor calibrating apparatus, and sensor calibration method | |
| US8994936B2 (en) | Pattern matching method, apparatus and line width measuring machine | |
| CN109613180B (en) | In-situ calibration method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20170929 Termination date: 20220212 |