CN104655120A - Novel fiber optic gyroscope - Google Patents
Novel fiber optic gyroscope Download PDFInfo
- Publication number
- CN104655120A CN104655120A CN201310597125.2A CN201310597125A CN104655120A CN 104655120 A CN104655120 A CN 104655120A CN 201310597125 A CN201310597125 A CN 201310597125A CN 104655120 A CN104655120 A CN 104655120A
- Authority
- CN
- China
- Prior art keywords
- fiber optic
- field
- integrated optics
- chip
- optic loop
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
Abstract
The invention provides a novel fiber optic gyroscope, which includes a light source, a detector, a coupler, an integrated optical chip, a fiber-optic ring and a circuit control device. The circuit control device consists of a modulation-demodulation circuit, a field-programmable chip (FPGA), and a digital signal processing and driving circuit. The novel fiber optic gyroscope has the advantages of all solid state, no rotating part or friction part, long service life, large dynamic range, instant start, simple structure, small size, light weight, no lockout problem, no need for precise machining of a light path in a quartz block, and low cost.
Description
Technical field
The invention belongs to gyroscope technology field, be specifically related to a kind of Novel optical fiber gyro instrument.
Background technology
Modern gyroscope is a kind of instrument accurately can determining the orientation of moving object, it is modern Aviation, navigation, widely used a kind of inertial navigation instrument in space flight and national defense industry, traditional inertial gyroscope mainly refers to mechanical gyroscope, mechanical gyroscope is very high to the requirement of process structure, complex structure, and its precision receives very many-sided restriction.
Summary of the invention
The present invention is directed to above technology Problems existing, provide a kind of Novel optical fiber gyro instrument, Novel optical fiber gyro instrument is the sensitive element based on light transmitting fiber coil, and the light launched by laser diode is propagated towards both direction along light transmitting fiber.The change of propagation path of light, determines the angular displacement of sensitive element.
The advantage of Novel optical fiber gyro instrument is all solid state, and do not have rotary part and friction means, the life-span is long, and dynamic range is large, instantaneous starting, and structure is simple, and size is little, lightweight.There is not latch-up problem, also not be used in quartz wedge Precision Machining and go out light path, cost is low.
A kind of Novel optical fiber gyro instrument that the present invention proposes, comprise light source, detector, coupling mechanism, integrated optics chip, fiber optic loop and circuit control device, described circuit control device is made up of modulation-demodulation circuit, field-programmable chip FPGA, digital signal processing and driving circuit; Described light source is connected with integrated optics chip by coupling mechanism, and integrated optics chip is connected with fiber optic loop by regulator; Described detector is connected with field-programmable chip FPGA by modulation-demodulation circuit, and field-programmable chip FPGA is connected with integrated optics chip by driving circuit.
Light is transmitted on integrated optics chip by coupling mechanism by described light source, and light is sent in fiber optic loop by regulator by integrated optics chip, according to Sagnac theorem.Detected by fiber optic loop, the result that fiber optic loop detects is passed integrated optics chip back and is sent in field-programmable chip FPGA, by being converted into rotating speed to the process of fiber optic loop measurement result, is exported by field-programmable chip FPGA output port.
Described detector is amplified and filtering process detection signal by modulation-demodulation circuit, processing signals be sent in field-programmable chip FPGA, field-programmable chip FPGA Received signal strength is carried out digital information processing and is controlled driving circuit making integrated optics chip work.
Accompanying drawing explanation
Accompanying drawing is Novel optical fiber gyro instrument schematic diagram of the present invention.
Embodiment
A kind of Novel optical fiber gyro instrument that the present invention proposes, as shown in the figure, Novel optical fiber gyro instrument is the sensitive element based on light transmitting fiber coil, and the light launched by laser diode is propagated towards both direction along light transmitting fiber.The change of propagation path of light, determines the angular displacement of sensitive element.
A kind of Novel optical fiber gyro instrument that the present invention proposes, comprise light source, detector, coupling mechanism, integrated optics chip, fiber optic loop and circuit control device, described circuit control device is made up of modulation-demodulation circuit, field-programmable chip FPGA, digital signal processing and driving circuit; Described light source is connected with integrated optics chip by coupling mechanism, and integrated optics chip is connected with fiber optic loop by regulator; Described detector is connected with field-programmable chip FPGA by modulation-demodulation circuit, and field-programmable chip FPGA is connected with integrated optics chip by driving circuit.
Light is transmitted on integrated optics chip by coupling mechanism by described light source, and light is sent in fiber optic loop by regulator by integrated optics chip, according to Sagnac theorem.Detected by fiber optic loop, the result that fiber optic loop detects is passed integrated optics chip back and is sent in field-programmable chip FPGA, by being converted into rotating speed to the process of fiber optic loop measurement result, is exported by field-programmable chip FPGA output port.
Described detector is amplified and filtering process detection signal by modulation-demodulation circuit, processing signals be sent in field-programmable chip FPGA, field-programmable chip FPGA Received signal strength is carried out digital information processing and is controlled driving circuit making integrated optics chip work.
The advantage of Novel optical fiber gyro instrument is all solid state, and do not have rotary part and friction means, the life-span is long, and dynamic range is large, instantaneous starting, and structure is simple, and size is little, lightweight.There is not latch-up problem, also not be used in quartz wedge Precision Machining and go out light path, cost is low.
Claims (3)
1. a Novel optical fiber gyro instrument, comprise light source, detector, coupling mechanism, integrated optics chip, fiber optic loop and circuit control device, described circuit control device is made up of modulation-demodulation circuit, field-programmable chip FPGA, digital signal processing and driving circuit; Described light source is connected with integrated optics chip by coupling mechanism, and integrated optics chip is connected with fiber optic loop by regulator; Described detector is connected with field-programmable chip FPGA by modulation-demodulation circuit, and field-programmable chip FPGA is connected with integrated optics chip by driving circuit.
2. a kind of Novel optical fiber gyro instrument according to claim 1, it is characterized in that: light is transmitted on integrated optics chip by coupling mechanism by described light source, light is sent in fiber optic loop by regulator by integrated optics chip, detected by fiber optic loop, the result that fiber optic loop detects is passed integrated optics chip back and is sent in field-programmable chip FPGA, by being converted into rotating speed to the process of fiber optic loop measurement result, exported by field-programmable chip FPGA output port.
3. a kind of Novel optical fiber gyro instrument according to claim 1, it is characterized in that: described detector is amplified and filtering process detection signal by modulation-demodulation circuit, processing signals be sent in field-programmable chip FPGA, field-programmable chip FPGA Received signal strength is carried out digital information processing and is controlled driving circuit making integrated optics chip work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597125.2A CN104655120A (en) | 2013-11-21 | 2013-11-21 | Novel fiber optic gyroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597125.2A CN104655120A (en) | 2013-11-21 | 2013-11-21 | Novel fiber optic gyroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104655120A true CN104655120A (en) | 2015-05-27 |
Family
ID=53246526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310597125.2A Pending CN104655120A (en) | 2013-11-21 | 2013-11-21 | Novel fiber optic gyroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104655120A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220142A (en) * | 2020-02-25 | 2020-06-02 | 北京航空航天大学 | Signal processing method and device of novel ultrahigh-precision optical fiber gyroscope |
| CN112033387A (en) * | 2020-07-31 | 2020-12-04 | 河北汉光重工有限责任公司 | Photoelectric separated subminiature optical fiber gyroscope |
-
2013
- 2013-11-21 CN CN201310597125.2A patent/CN104655120A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220142A (en) * | 2020-02-25 | 2020-06-02 | 北京航空航天大学 | Signal processing method and device of novel ultrahigh-precision optical fiber gyroscope |
| CN111220142B (en) * | 2020-02-25 | 2020-12-15 | 北京航空航天大学 | Signal processing method and device of novel ultrahigh-precision optical fiber gyroscope |
| CN112033387A (en) * | 2020-07-31 | 2020-12-04 | 河北汉光重工有限责任公司 | Photoelectric separated subminiature optical fiber gyroscope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103389084B (en) | Based on the resonance type optical fiber gyro of two coupled fiber ring resonator coherence effect | |
| CN102410836B (en) | Space six-freedom degrees article locating system based on two-dimensional sensitive sensor | |
| CN103697880B (en) | A kind of optical fibre gyro of low random walk coefficient | |
| CN109579822B (en) | Optical fiber gyroscope adopting double-ring structure | |
| CN115014318B (en) | Hollow microstructure optical fiber gyroscope | |
| CN104075704A (en) | Digital closed loop optical fiber gyroscope with double-interferometer system | |
| CN107202573A (en) | A kind of pair of light source high-precision optical fiber gyro | |
| CN104655120A (en) | Novel fiber optic gyroscope | |
| CN104180798A (en) | Multi-optical-fiber-ring-series single-axis optical fiber gyroscope and multi-optical-fiber-ring-series method | |
| CN203719665U (en) | Small-sized closed-loop fiber optic gyroscope | |
| CN103267522A (en) | Bidirectional locking frequency switching method for eliminating nonreciprocal error of optical microwave gyroscope | |
| CN104457731A (en) | Biaxial optical fiber gyroscope | |
| CN101922935B (en) | Interference type all-optic fiber gyroscope with minimum reciprocal structure | |
| US8514401B2 (en) | All-fiber interferometric fiber optic gyroscope having a minimum reciprocal configuration | |
| CN103234590A (en) | Underground optical fiber flow sensor in oil field | |
| CN103344255A (en) | Novel evaluation device for performance of fiber-optic ring | |
| CN103968821A (en) | Two-way resonant optical gyroscope | |
| GB2512522A (en) | Integrated silicon optomechanical gyroscopes (OMGS) | |
| CN102226699A (en) | All-fiber inertial sensing device | |
| CN103697879A (en) | Fiber-optic gyroscope light path | |
| CN105737813A (en) | FPGA-based parallel acquisition and forwarding system for data of fiber-optic gyroscope | |
| CN208689070U (en) | Dual amendment type velocity sensor based on Doppler effect | |
| JP2016153761A (en) | Absolute speed meter, absolute speed measurement device, and absolute speed measurement method | |
| CN105698674A (en) | Integration fiber optic interferometer | |
| CN208171288U (en) | A kind of optical fibre gyro with light source self-checking function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |
|
| WD01 | Invention patent application deemed withdrawn after publication |