[특허]Vibration-sensing device method of adjusting the same and angular velocity sensor taking advantage of the same

Vibration-sensing device method of adjusting the same and angular velocity sensor taking advantage of the same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01P-003/44
출원번호	US-0518840 (1995-08-24)
우선권정보	JP-0225635 (1994-08-25)
발명자 / 주소	Nonomura Yutaka (Nagoya JPX) Morikawa Takeshi (Seto JPX) Okuwa Masayuki (Nagoya JPX) Tsukada Kouji (Seto JPX)
출원인 / 주소	Kabushiki Kaisha Toyota Chuo Kenkyusho (Aichi-ken JPX 03)
인용정보	피인용 횟수 : 35 인용 특허 : 0

초록 ▼

A vibration-sensing device (10) with high sensitivity includes a torsion bar (16) fixed on both ends thereof to a frame, a tuning fork-shaped vibrating member (12) joined with and supported by the torsion bar (16), and first and second torsion vibrating bodies (14,15) symmetrically projected from the torsion bar (16). The torsion bar (16), the tuning fork-shaped vibrating member (12), and the torsion vibrating bodies (14,15) constitute a torsion vibrating system. The application of an angular velocity to the vibration-sensing device (10) under the condition of plane vibrations of first and second vibrating tines (12a, 12b) of the first tuning fork-shaped vibrating member (12) along an X axis generates Coriolis forces to drive torsion vibration of the first tuning fork-shaped vibrating member (12) round the torsion bar (16), thereby driving torsion vibration corresponding to the angular velocity in the torsion vibrating system. The torsion vibration is amplified by the first and second torsion vibrating bodies (14,15) and detected by torsion vibration-detecting piezoelectric elements (20a,20b) attached to the torsion vibrating bodies (14,15). An angular velocity sensor using the vibration-sensing device, and a method of adjusting the sensitivity of the device are also provided.

대표청구항 ▼

A vibration-sensing device comprising: a first tuning fork-shaped vibrating member having a base, a first vibrating tine and a second vibrating tine, said first and second vibrating tines being joined with each other at said base to be fork-shaped, said first and second tines vibrating in a plane where said first and second tines exist; a vibration-driver fixed to said first tuning fork-shaped vibrating member and configured to drive plane vibration of said first and second vibrating tines of said first tuning fork-shaped vibrating member in said plane; a torsion bar including at least a first torsion bar element connected to said base and extending in said plane in a direction opposite to a direction in which said first and second vibrating tines extend; a torsion vibrating member including a first beam projected from said first torsion bar element, a second beam projected from said first torsion bar element in a direction opposite to the direction in which said first beam is projected, a first mass control element connected to an end of said first beam, and a second mass control element connected to an end of said second beam; said torsion bar, said first tuning fork-shaped vibrating member, and said torsion vibrating member forming a torsion vibrating system around an axis of said torsion bar; and a torsion-vibration-detector configured to detect a state of torsion vibration driven in said torsion vibrating system and to output a signal representing said state of torsion vibration.

이 특허를 인용한 특허 (35)

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Sugitani Nobuyoshi,JPX, Angular velocity detecting apparatus of a vibration type.
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Furuhata, Makoto; Oshio, Masahiro; Higuchi, Takamitsu, Tuning fork oscillating piece, tuning fork oscillator, and acceleration sensor.
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Yachi Masanori,JPX ; Ishikawa Hiroshi,JPX ; Satoh Yoshio,JPX ; Kikuchi Kazutsugu,JPX, Tuning fork type vibration element and tuning fork type vibration gyro.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Vibration-sensing device method of adjusting the same and angular velocity sensor taking advantage of the same 원문보기

초록 ▼

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연구과제 타임라인

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Vibration-sensing device method of adjusting the same and angular velocity sensor taking advantage of the same 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (35)

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