CN106342182B - A kind of laser gyro based on longitudinal radio frequency discharge - Google Patents
A kind of laser gyro based on longitudinal radio frequency dischargeInfo
- Publication number
- CN106342182B CN106342182B CN201218002430.9A CN201218002430A CN106342182B CN 106342182 B CN106342182 B CN 106342182B CN 201218002430 A CN201218002430 A CN 201218002430A CN 106342182 B CN106342182 B CN 106342182B
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- laser gyro
- radio frequency
- frequency discharge
- electrode
- cavity
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Abstract
The invention belongs to laser gyro technique, relate to a kind of laser gyro based on longitudinal radio frequency discharge. The described laser gyro based on longitudinal radio frequency discharge, it comprises cavity, speculum, fill exhaust electrode, apertured electrode, wherein, the annular pore being interconnected is set in described cavity, the described exhaust electrode that fills is metal tube, be arranged on cavity and with annular pore and be communicated with, described apertured electrode is arranged on and fills exhaust electrode opposite, and the two central axis is consistent, in addition, apertured electrode is provided with one section and is communicated with annular pore, and the less radial direction through hole in aperture is as diaphragm, ensures that laser gyro normally moves with fundamental transverse mode. The laser gyro that the present invention is based on longitudinal radio frequency discharge adopts high voltage, low frequency radio frequency discharge that laser gain is provided, and its volume is little, simple in structure, and discharging efficiency is high and electromagnetic radiation is little, has effectively realized the miniaturization of laser gyro.
Description
Technical field
The utility model belongs to laser gyro technique, relates to a kind of laser gyro based on longitudinal radio frequency discharge.
Background technology
Laser gyro is a kind of angular-rate sensor, generally adopts ring laser, and its gain mode often adopts HVDC electric dischargeMode. Miniaturization is a development trend of optical gyroscope, but in the time that laser gyro cavity length diminishes, conventional direct-current discharge sideFormula is difficult to meet gain requirement, and direct-current discharge can bring laser gyro output error. In addition, the diaphragm that laser gyro is conventional andCritical component processing, the location tolerances such as Multiplexing apparatus require high, and cost is large, is difficult to meet the microminiature of chamber length in 40mmThe application requirements of laser gyro.
The longitudinal radio frequency discharge of existing laser gyro all adopts solenoid form (as Fig. 1), discharges exactly at laser gyro cavity 8On the outer wall of path, turn to solenoid 7 with good conductor equably, at solenoidal two exit incoming radio frequency signals, penetratingFrequently under the driving of signal, form alternating magnetic field in solenoid inside along tube axial direction, under magnetic action of alternating magnetic field, discharge channelInterior gain gas ionization discharge, thus laser suitable, counterclockwise running formed.
This technical scheme complex structure must increase solenoidal coiling groove and well behaved conductor on discharge channel outer wall,Owing to there is electromagnetic conversion problem, discharging efficiency is low, and electromagnetic radiation is serious simultaneously.
Utility model content
The purpose of this utility model is: provide that a kind of volume is little, simple in structure, discharging efficiency is high and electromagnetic radiation is little based onThe longitudinally laser gyro of radio frequency discharge.
The technical solution of the utility model is: a kind of laser gyro based on longitudinal radio frequency discharge, it comprise cavity, speculum,Fill exhaust electrode, apertured electrode, wherein, the annular pore being interconnected be set in described cavity, described in fill exhaust electrode and beMetal tube, is arranged on cavity and with annular pore and is communicated with, and described apertured electrode is arranged on and fills exhaust electrode opposite and the twoCentral axis is consistent, in addition, be provided with one section and be communicated with annular pore, and as diaphragm, diameter is in the middle of apertured electrodeThe radial direction through hole of 0.4mm～1.4mm.
Radial direction through hole length in apertured electrode is 0.3mm～1mm.
Described speculum comprises two journey length control mirros, 1 normal mirror and 1 integrated light-combining prism, above-mentioned four reflectionsMirror is arranged on cavity, and optical cement face is rectangle.
Described integrated light-combining prism upper surface has the scarf as reflecting surface.
The utility model has the advantages that: the laser gyro of the longitudinal radio frequency discharge of the utility model, adopts longitudinal bipolar electrode high pressure, heightFrequently radio frequency discharge form, realizes Laser output. By the less through hole in a sector hole footpath in apertured electrode as Apertured higher order transverseMould, ensures that laser gyro normally moves with fundamental transverse mode. Compared to existing technology, this utility model need to not discharged at laser gyroOn the outer wall of path, turn to solenoid with good conductor equably, do not have electromagnetic conversion problem, and volume is little, simple in structure,Discharging efficiency is high, electromagnetic radiation is little, has effectively realized the miniaturization of laser gyro.
Brief description of the drawings
The existing longitudinal radio frequency discharge laser gyro schematic diagram of Fig. 1;
Fig. 2 is the front view of the laser gyro of the utility model based on longitudinal radio frequency discharge;
Fig. 3 is the cutaway view of the laser gyro of the utility model based on longitudinal radio frequency discharge;
Wherein, to fill exhaust electrode, the integrated light-combining prism of 2-, 3-journey length control mirro, 4-apertured electrode, 5-pore, 6-carefully logical for 1-Unthreaded hole, 7-solenoid, 8-laser gyro cavity.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described:
Please refer to Fig. 2 and Fig. 3, wherein, Fig. 2 is facing of the laser gyro of the utility model based on longitudinal radio frequency dischargeFigure, Fig. 3 is the cutaway view of the laser gyro of the utility model based on longitudinal radio frequency discharge. The utility model is put based on longitudinal radio frequencyThe laser gyro of electricity comprises cavity, speculum, fills exhaust electrode, apertured electrode. Wherein, speculum comprises the long control of two journeysMirror, 1 normal mirror and 1 integrated light-combining prism, above-mentioned four speculum optical cement faces are rectangle, good seal performance,Adhesion strength is large, to ensure and the connection reliability of cavity. In addition, this integrated light-combining prism upper surface has scarf, asReflecting surface, so that suitable, the counterclockwise light of laser gyro forms interference fringe. The described exhaust electrode that fills is arranged on normal mirror and collectionBecome on the cavity between light-combining prism, and be communicated with the pore of inside cavity. Described apertured electrode is arranged on and fills exhaust electrode pairFace, and the two central axis is consistent. This fills between exhaust electrode and apertured electrode is higher than 200V high voltage, lower than 100MHzLow-frequency radiofrequency signal, provides gain by longitudinal radio frequency discharge to laser gyro, and existing longitudinal radio frequency discharge laser gyroCompare, the utility model need to not turn to solenoid with good conductor equably on the outer wall of laser gyro discharge path, does not needTo realize longitudinal discharge by produce magnetic field on discharge channel, not have that electromagnetic conversion efficiency is low, discharging efficiency is low and electricThe problem that magnetic radiation is serious.
Refer to Fig. 3, it is the cutaway view of the laser gyro of the utility model based on longitudinal radio frequency discharge. In described laser gyroThe pore of portion is the annulus line being interconnected, and wherein, has the less thin clear aperature 6 in a sector hole footpath in apertured electrode, shouldThin clear aperature diameter is between 0.4mm～1.4mm, and length is to can be used as diaphragm between 0.3mm～1mm, restriction high-orderTransverse mode, to ensure the steady operation of laser gyro fundamental transverse mode.
In present embodiment, the described laser gyro based on longitudinal radio frequency discharge adopts Dithered, and volume is little, and chamber length is only40mm, adopts longitudinal radio-frequency electrode high pressure, low frequency radio frequency electric discharge that laser gain is provided, and gain gas is He-He gas, workBe 0.6328 μ m or 1.15um as wavelength. When real work, filling between exhaust electrode and apertured electrode by higher than 200VHigh pressure, lower than 100MHz low frequency radio frequency electric discharge, in cavity, form suitable, counterclockwise light, wherein, in apertured electrode one sectionThin clear aperature is as diaphragm, and restriction high-order transverse mode, to make fundamental transverse mode steady operation, and adopts the long control of Piezoelectric Ceramic journeyMirror control light path processed, realizes frequency stabilization. Interfere after integrated light-combining prism from suitable, the counterclockwise light of cavity outgoing, byPhotoelectric tube is surveyed moving interference fringes speed and is obtained suitable, counterclockwise photo-beat frequently, and obtains by detection, control, signal processing circuitTo gyro institute angle measurement speed.
Claims (4)
1. the laser gyro based on longitudinal radio frequency discharge, is characterized in that: comprise cavity, speculum, fill exhaust electrode(1), apertured electrode (4), wherein, the annular pore (5) being interconnected is set in described cavity, described in fill exhaust electrode(1) be metal tube, be arranged on cavity and with annular pore (5) and be communicated with, described apertured electrode (4) is arranged on and fills rowPneumoelectric utmost point opposite, and the two central axis is consistent, in addition, is provided with one section and is communicated with annular pore in the middle of apertured electrode, and doFor diaphragm, the radial direction through hole (6) that diameter is 0.4mm～1.4mm.
2. the laser gyro based on longitudinal radio frequency discharge according to claim 1, is characterized in that: in apertured electrodeRadial direction through hole length is 0.3mm～1mm.
3. the laser gyro based on longitudinal radio frequency discharge according to claim 2, is characterized in that: described speculum bagDraw together two journey length control mirros, 1 normal mirror and 1 integrated light-combining prism, above-mentioned four speculums are arranged on cavity,And optical cement face is rectangle.
4. the laser gyro based on longitudinal radio frequency discharge according to claim 3, is characterized in that: the described integrated light that closesPrism upper surface has the scarf as reflecting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201218002430.9A CN106342182B (en) | 2012-07-10 | 2012-07-10 | A kind of laser gyro based on longitudinal radio frequency discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201218002430.9A CN106342182B (en) | 2012-07-10 | 2012-07-10 | A kind of laser gyro based on longitudinal radio frequency discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106342182B true CN106342182B (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201218002430.9A Active CN106342182B (en) | 2012-07-10 | 2012-07-10 | A kind of laser gyro based on longitudinal radio frequency discharge |
Country Status (1)
| Country | Link |
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| CN (1) | CN106342182B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289872A (en) * | 2022-03-07 | 2022-04-08 | 西安中科华芯测控有限公司 | Method for assembling ultrafast laser mirror for miniature laser gyroscope |
| CN115355899A (en) * | 2022-10-19 | 2022-11-18 | 天津集智航宇科技有限公司 | Connection method for miniature laser gyro reflector |
-
2012
- 2012-07-10 CN CN201218002430.9A patent/CN106342182B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289872A (en) * | 2022-03-07 | 2022-04-08 | 西安中科华芯测控有限公司 | Method for assembling ultrafast laser mirror for miniature laser gyroscope |
| CN114289872B (en) * | 2022-03-07 | 2022-08-23 | 西安中科华芯测控有限公司 | Method for assembling ultrafast laser mirror for miniature laser gyroscope |
| CN115355899A (en) * | 2022-10-19 | 2022-11-18 | 天津集智航宇科技有限公司 | Connection method for miniature laser gyro reflector |
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| GR03 | Grant of secret patent right | ||
| GRSP | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| DCSP | Declassification of secret patent |