Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1978-07-24
1980-02-26
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310346, H01L 4110
Patent
active
041907825
ABSTRACT:
The invention reduces variability of the resonant frequency in piezoelectric ceramic transducers having a vibratory assembly comprising a flexible diaphragm carrying a ceramic disk sensor. The clamped edge of the diaphragm is typically offset from the plane of the vibratory assembly and is coupled to that assembly by generally cylindrical structure having flexibility in a radial direction. That flexibility partially isolates the vibratory assembly from effects such as structural variability of the clamping means and differential thermal expansion at the clamp. The degree of that isolation is preferably selected by suitable design of the coupling structure to provide approximate compensation for thermal effects due to other parameters of the system.
REFERENCES:
patent: 2714642 (1955-08-01), Kinsley
patent: 2834952 (1958-05-01), Harris
patent: 2947823 (1960-08-01), Harris
patent: 3206558 (1965-09-01), Shoot
patent: 3437849 (1969-04-01), Treatch et al.
patent: 3683129 (1972-08-01), Roos et al.
patent: 3828210 (1974-08-01), Livenick et al.
patent: 3876891 (1975-04-01), Schubotz
patent: 3943389 (1976-03-01), Hickernell
patent: 4047060 (1977-09-01), Schafft
Budd Mark O.
Lewis Charlton M.
Telex Communications, Inc.
LandOfFree
Piezoelectric ceramic resonant transducer with stable frequency does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Piezoelectric ceramic resonant transducer with stable frequency, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoelectric ceramic resonant transducer with stable frequency will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2114567