Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1980-02-21
1982-11-16
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310326, H01L 4108
Patent
active
043596592
ABSTRACT:
Transducer assembly having a head and a transducer element contacting the rear of the head.
In order to provide an output signal from the transducer element which has a positive value over a wide range of angles of incidence of shock or pressure waves to be detected by said transducer assembly, the transducer element contacts with the rear of the head over a zone which is smaller in cross sectional area taken perpendicular to the direction of propagation of the shock or pressure wave through the assembly than that of the rear of the head. In order to provide electrical connection to the front face of the transducer element which can be a piezo-electric element, it can be mounted in a metal tube with a partly closed end which electrically contacts the front face of the element. In order to positively position the transducer assembly and to inhibit unwanted shock or pressure waves reaching the element, the assembly has a series path of four interfaces of acoustic mismatch of shock or pressure waves, between said head and a body.
REFERENCES:
patent: 2480535 (1947-03-01), Alois et al.
patent: 3233213 (1966-02-01), Harris
patent: 3278771 (1966-10-01), Fry
patent: 3387604 (1968-06-01), Erikson
patent: 3470395 (1969-09-01), Moffatt
patent: 3501654 (1970-03-01), Humphries
patent: 3517226 (1970-06-01), Jones, Sr.
patent: 3710151 (1973-01-01), Massa et al.
patent: 3979565 (1976-09-01), McShane
patent: 3990035 (1976-11-01), Byers
patent: 4217516 (1980-08-01), Iinuma et al.
Specific Purpose Transducers in PZT Ceramics, Vernitron Ltd. Bulletin No. 66047/A, Jan. 1975, (Southampton, England).
IBM Technical Disclosure Bulletin, vol. 21, No. 9, Feb. 1979.
Australasian Training Aids (Pty.) Limited
Budd Mark O.
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