KR100224123B1 - 진동 자이로스코프 - Google Patents
진동 자이로스코프 Download PDFInfo
- Publication number
- KR100224123B1 KR100224123B1 KR1019960023799A KR19960023799A KR100224123B1 KR 100224123 B1 KR100224123 B1 KR 100224123B1 KR 1019960023799 A KR1019960023799 A KR 1019960023799A KR 19960023799 A KR19960023799 A KR 19960023799A KR 100224123 B1 KR100224123 B1 KR 100224123B1
- Authority
- KR
- South Korea
- Prior art keywords
- piezoelectric substrate
- vibrating gyroscope
- electrodes
- gyroscope according
- electrode
- 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 - Lifetime
Links
- 239000000758 substrate Substances 0.000 claims abstract description 58
- 238000005452 bending Methods 0.000 claims abstract description 6
- 239000013078 crystal Substances 0.000 claims description 25
- 230000010287 polarization Effects 0.000 claims description 15
- 229910013641 LiNbO 3 Inorganic materials 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 6
- 239000002356 single layer Substances 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 7
- 229910000990 Ni alloy Inorganic materials 0.000 description 5
- 239000007769 metal material Substances 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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
- G01C19/56—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
- G01C19/5642—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using vibrating bars or beams
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
Abstract
Description
Claims (13)
- 두께 방향으로 대향하게 분극되며, 제 1및 제 2 주면을 가지고 있고, 서로 대향하는 방향으로 분극되는 상부 및 하부를 가지고 있는 단일층을 포함하고 있는 압전체 기판 ; 상기 압전체 기판의 상기 제 1주면에 설치되는 두 개의 분할 전극 ; 상기 압전체 기판의 상기 제 2주면에 설치되는 공통 전극 ; 상기 압전체 기판이 굴곡 모드로 진동하도록 구동 신호를 상기 두 개의 분할 전극과 상기 공통 전극 사이에 가하는 구동 수단 ; 및 상기 두개의 분할 전극들 사이에서 발생된 신호를 검출하는 검출 수단을 포함함을 특징으로 하는 진동 자이로스코프.
- 제 1항에 있어서, 상기 상부 및 하부의 분극 방향이 상기 압전체 기판의 두께 방향으로 중앙의 근방에서 서로 대향함을 특징으로 하는 진동 자이로스코프.
- 제 2항에 있어서, 상기 압전체 기판이 그 내부에 분극 반전층을 가지고 있는 단결정판임을 특징으로 하는 진동 자이로스코프.
- 제 3항에 있어서, 상기 단결정판이 LiNbO3단결정판 또는 LiTaO3단결정판을 포함함을 특징으로 하는 진동 자이로스코프.
- 제 2항에 있어서, 상기 압전체 기판이 정사각주 모양임을 특징으로 하는 진동 자이로스코프.
- 제 2 항에 있어서, 상기 압전체 기판이 팔각주 모양임을 특징으로 하는 진동 자이로스코프.
- 제 2항에 있어서, 상기 제 1주면이 세로 중앙선을 가지고 있고, 상기 분할 전극이 상기 중앙선의 양측에 위치됨을 특징으로 하는 진동 자이로스코프.
- 제 7항에 있어서, 상기 각 분할 전극이 I자 모양임을 특징으로 하는 진동 자이로스코프.
- 제 7항에 있어서, 상기 각 분할 전극은 긴 부분과 짧은 부분이 있는 L자 모양으며, 상기 분할 전극의 상기 각 긴 부분은 상기 중앙선의 상기 양측에 위치됨을 특징으로 하는 진동 자이로스코프.
- 제 7항에 있어서, 상기 분할 전극은 상기 압전체 기판의 진동 노드(node)의 근방에서 상기 세로 중앙선을 횡단하여 위치된 횡형 갭(transversegap)에 의해 더 분할됨을 특징으로 하는 진동 자이로스코프.
- 제 10항에 있어서, 두 개의 노드와 두 개의 횡형 갭이 있음을 특징으로 하는 진동 자이로스코프.
- 제 11항에 있어서, 상기 세로 중앙선의 어느 한쪽 측에서, 세 개의 전극, 상기 두 개의 횡형 갭의 각 제 1측들 사이에 위치된 중앙 전극, 및 상기 두 개의 횡형 갭의 각 제 2측들 사이에 위치된 단부(end) 전극이 있음을 특징으로 하는 진동 자이로스코프.
- 제 12항에 있어서, 상기 각 단부 전극이 상기 중앙선의 상기 대향하는 측에 있는 상기 중앙 전극에 전기적으로 접속됨을 특징으로 하는 진동 자이로스코프.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7161096A JP3000891B2 (ja) | 1995-06-27 | 1995-06-27 | 振動ジャイロ |
JP7-161096 | 1995-06-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970002319A KR970002319A (ko) | 1997-01-24 |
KR100224123B1 true KR100224123B1 (ko) | 1999-10-15 |
Family
ID=15728536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960023799A Expired - Lifetime KR100224123B1 (ko) | 1995-06-27 | 1996-06-26 | 진동 자이로스코프 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5837895A (ko) |
EP (1) | EP0751374B1 (ko) |
JP (1) | JP3000891B2 (ko) |
KR (1) | KR100224123B1 (ko) |
DE (1) | DE69619307T2 (ko) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3386320B2 (ja) * | 1996-10-01 | 2003-03-17 | 株式会社村田製作所 | 振動ジャイロの温度特性調整方法 |
US6209393B1 (en) * | 1996-10-29 | 2001-04-03 | Mitsui Chemicals Inc. | Vibration gyroscope |
JPH10232132A (ja) * | 1997-02-20 | 1998-09-02 | Murata Mfg Co Ltd | 振動ジャイロ |
US6777857B1 (en) | 1999-03-18 | 2004-08-17 | Board Of Regents Of The University Of Nebraska | Piezoelectric gyroscope system, and method of use |
US6457358B1 (en) | 1999-03-18 | 2002-10-01 | Board Of Regents Of The University Of Nebraska | Tubular coriolis force driven piezoelectric gyroscope system, and method of use |
JP3494096B2 (ja) * | 1999-11-05 | 2004-02-03 | 株式会社村田製作所 | 振動ジャイロ |
JP3613117B2 (ja) * | 2000-02-23 | 2005-01-26 | 株式会社村田製作所 | 振動子及びそれを用いた振動ジャイロ及びそれを用いた電子装置 |
JP4678093B2 (ja) * | 2001-02-23 | 2011-04-27 | 株式会社村田製作所 | 振動ジャイロの製造方法 |
JP3767540B2 (ja) * | 2002-10-28 | 2006-04-19 | 株式会社村田製作所 | 振動ジャイロ及び角速度センサー |
US7322238B2 (en) | 2004-03-03 | 2008-01-29 | Northrop Grumman Corporation | Support of vibrating beam near nodal point |
CA2498178A1 (en) * | 2004-03-03 | 2005-09-03 | Northrop Grumman Corporation | Support of vibrating beam near nodal point |
US8664951B2 (en) * | 2009-03-30 | 2014-03-04 | Honeywell International Inc. | MEMS gyroscope magnetic sensitivity reduction |
US20140026659A1 (en) * | 2012-07-27 | 2014-01-30 | Biao Zhang | Mems device and a method of using the same |
CN103345155B (zh) * | 2013-06-19 | 2015-12-09 | 河海大学常州校区 | 微陀螺仪的自适应反演控制系统及方法 |
CN103345148A (zh) * | 2013-06-19 | 2013-10-09 | 河海大学常州校区 | 微陀螺仪的鲁棒自适应控制方法 |
CN104281056B (zh) * | 2014-09-18 | 2017-07-21 | 河海大学常州校区 | 基于神经网络上界学习的微陀螺仪鲁棒自适应控制方法 |
CN104614993B (zh) * | 2015-01-15 | 2017-05-10 | 河海大学常州校区 | 微陀螺仪自适应滑模预设性能控制方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE492967A (ko) * | 1948-12-28 | |||
US3258617A (en) * | 1963-02-07 | 1966-06-28 | Avco Corp | Piezoelectric device |
US3520195A (en) * | 1965-10-11 | 1970-07-14 | Gen Electric | Solid state angular velocity sensing device |
US4431935A (en) * | 1981-09-15 | 1984-02-14 | Rockwell International Corporation | Sensor structure incorporating multiple piezoelectric generators |
JPH0781865B2 (ja) * | 1985-04-26 | 1995-09-06 | 東京航空計器株式会社 | 振動ジャイロ |
JPH0828540B2 (ja) * | 1987-05-20 | 1996-03-21 | 株式会社村田製作所 | 電歪セラミック材料体およびその分極操作方法 |
US5349857A (en) * | 1988-08-12 | 1994-09-27 | Murata Manufacturing Co., Ltd. | Vibratory gyroscope |
DE69210679T2 (de) * | 1991-06-07 | 1996-09-26 | Akai Electric | Schwingungssteuerungsgerät |
JP3016986B2 (ja) * | 1993-02-17 | 2000-03-06 | 三菱電機株式会社 | 振動ジャイロ用検出回路 |
US5430342A (en) * | 1993-04-27 | 1995-07-04 | Watson Industries, Inc. | Single bar type vibrating element angular rate sensor system |
JPH0735554A (ja) * | 1993-07-22 | 1995-02-07 | Murata Mfg Co Ltd | 検出回路 |
US5495760A (en) * | 1994-07-05 | 1996-03-05 | Rockwell International Corporation | Beermug gyroscope |
-
1995
- 1995-06-27 JP JP7161096A patent/JP3000891B2/ja not_active Expired - Lifetime
-
1996
- 1996-06-20 DE DE69619307T patent/DE69619307T2/de not_active Expired - Lifetime
- 1996-06-20 EP EP96110002A patent/EP0751374B1/en not_active Expired - Lifetime
- 1996-06-25 US US08/670,346 patent/US5837895A/en not_active Expired - Lifetime
- 1996-06-26 KR KR1019960023799A patent/KR100224123B1/ko not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69619307T2 (de) | 2002-08-14 |
EP0751374A3 (en) | 1998-04-15 |
EP0751374A2 (en) | 1997-01-02 |
US5837895A (en) | 1998-11-17 |
KR970002319A (ko) | 1997-01-24 |
DE69619307D1 (de) | 2002-03-28 |
JP3000891B2 (ja) | 2000-01-17 |
EP0751374B1 (en) | 2002-02-20 |
JPH0914968A (ja) | 1997-01-17 |
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