Tuning-fork type transducer for angular-speed sensor,...

Details Tuning-fork type transducer for angular-speed sensor,... Tuning-fork type transducer for angular-speed sensor,...

2005-03-01

2008-10-28

Kwok, Helen C. (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

C073S504120

Reexamination Certificate

active

07441459

ABSTRACT:
The invention provides a tuning-fork type transducer for an angular-speed sensor which realizes a stable fork-driving, realizes downsizing of the angular-speed sensor, and is capable of executing control of a vehicle body with high degree of accuracy when being used under a high-temperature environment, an angular-speed sensor using this transducer, and an automotive vehicle using this angular-speed sensor. Electric charges obtained from upper electrodes (13a), (14a) provided on an arm (10b) are amplified respectively by current amplifiers (40a), (40b). The amplified signal is differentially amplified by a first differential amplifier (41), and the amplified signal is used as a monitor signal for fork-driving. An added signal obtained by adding output signals from the current amplifiers (40a), (40b) by an adder (60) is used as a signal for detecting the angular speed.

REFERENCES:
patent: 3697766 (1972-10-01), Ganter et al.
patent: 5939631 (1999-08-01), Moore
patent: 6018996 (2000-02-01), Matsuhiro et al.
patent: 6564639 (2003-05-01), Hatanaka et al.
patent: 6865945 (2005-03-01), Hayashi et al.
patent: 6880399 (2005-04-01), Okoshi et al.
patent: 6931927 (2005-08-01), Ohta et al.
patent: 7002284 (2006-02-01), Ouchi et al.
patent: 7176604 (2007-02-01), Nakatani
patent: 2004/0095046 (2004-05-01), Ouchi et al.
patent: 09-273933 (1997-10-01), None
patent: 10-339637 (1998-12-01), None
patent: 11-173850 (1999-07-01), None
patent: 2003-227719 (2003-08-01), None

Affiliated with

Also associated with

Rating

Tuning-fork type transducer for angular-speed sensor,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tuning-fork type transducer for angular-speed sensor,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tuning-fork type transducer for angular-speed sensor,... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3989846