Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1994-07-19
1996-05-14
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310338, H01L 4108
Patent
active
055170730
ABSTRACT:
A pressure sensor comprises a movable structure which is movable in accordance with a pressure applied thereto. A piezoelectric transducer is employed against which a pressure is applied when the movable structure is moved. The transducer has opposed electrodes between which a voltage is generated when the transducer is pressed. The capacitance between the opposed electrodes increases with increase of temperature. A dielectric member is arranged in the vicinity of the piezoelectric transducer. The dielectric member has opposed electrodes the capacitance between which decreases with increase of temperature. The piezoelectric transducer and the dielectric member are electrically connected in series.
REFERENCES:
patent: 2157665 (1939-05-01), Hollmann
patent: 2250496 (1941-07-01), Postlethwaite
patent: 2454264 (1948-11-01), Stigter
patent: 3185869 (1965-05-01), Shoor
patent: 3940974 (1976-03-01), Taylor
patent: 4608506 (1986-08-01), Tanuma
patent: 5168192 (1992-12-01), Kosugi et al.
Budd Mark O.
Unisia Jecs Corporation
LandOfFree
Pressure 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 Pressure sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1898262