Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Reexamination Certificate
2007-03-27
2007-03-27
Williams, Hezron (Department: 2856)
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
C073S493000, C073S504120, C073S504140, C073S614000, C073S514010, C073S514160
Reexamination Certificate
active
11224334
ABSTRACT:
A three-axis acceleration sensor having a simple construction is provided for improving shock resistance without lowering sensor sensitivity.An acceleration sensor for detecting acceleration in three orthogonal directions comprises an electrode substrate pair including electrode substrates (4) opposed to each other, and each having fixed electrodes (4c,4b,4a) corresponding to three axes, respectively, a diaphragm (2) acting as a movable electrode, and an umbrella-like weight (3) mounted centrally of the diaphragm (2).Acceleration is detected based on variations in capacitance between the fixed electrodes (4c,4b,4a) and diaphragm (2).Each electrode substrate (4) has an electret layer (1) formed to cover surfaces of the fixed electrodes (4c,4b,4a). At least one of the electrode substrates defines, centrally thereof, a through hole (7). A shaft portion of the umbrella-like weight (3) extends through the through hole (7) from outside, and is connected to the diaphragm (2).
REFERENCES:
patent: 6378381 (2002-04-01), Okada et al.
patent: 6859048 (2005-02-01), Okada et al.
patent: 6990867 (2006-01-01), Okada
patent: 1031837 (2000-08-01), None
patent: 10010150 (1998-01-01), None
patent: 10010150 (1998-01-01), None
patent: 2000275273 (2000-10-01), None
patent: 2000275273 (2000-10-01), None
patent: 2000346866 (2000-12-01), None
patent: 2000346866 (2000-12-01), None
patent: 2001083177 (2001-03-01), None
patent: 2001083177 (2001-03-01), None
Sugimori Yasuo
Yamamoto Akira
Hosiden Corporation
Shah Samir M.
The Webb Law Firm
Williams Hezron
LandOfFree
Acceleration 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 Acceleration sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acceleration sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3778832