Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1988-03-03
1991-07-16
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310321, 310364, 310368, H01L 4108
Patent
active
050327550
ABSTRACT:
A method and arrangement for providing damping of undesired modes of piezoelectric vibrators is disclosed that eliminates the tedious and often inaccurate methods of known mass-loading techniques. Instead, the arrangement relies on physically altering a controlled amount of the piezoelectric material located at a predetermined point to effect the selective damping needed to minimize the undesired responses and to minimally interfere with the desired mode of operation.
REFERENCES:
patent: 2870521 (1959-01-01), Rudnick
patent: 3332122 (1967-07-01), Christian
patent: 3336487 (1967-08-01), Martyn et al.
patent: 3697788 (1972-10-01), Parker et al.
patent: 3781577 (1973-12-01), Nonaka et al.
patent: 3898489 (1975-08-01), Grady et al.
patent: 4191906 (1980-03-01), Kogure
patent: 4224547 (1980-09-01), Miller
patent: 4361778 (1982-10-01), Luff et al.
patent: 4484382 (1984-11-01), Kawashima
patent: 4498025 (1985-02-01), Takahashi
patent: 4638205 (1987-01-01), Fujita et al.
patent: 4641055 (1987-02-01), Tanaka
patent: 4642505 (1987-02-01), Arvanitis
patent: 4716332 (1987-12-01), Hayashi
patent: 4771202 (1988-09-01), Takahashi
Budd Mark O.
Krause Joseph P.
Markison Timothy W.
Motorola Inc.
Parmelee Steven G.
LandOfFree
Method and means for damping modes of piezoelectric vibrators does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and means for damping modes of piezoelectric vibrators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and means for damping modes of piezoelectric vibrators will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-133228