Method and a system for testing capacitive, acoustic transducers

Details Method and a system for testing capacitive, acoustic transducers Method and a system for testing capacitive, acoustic transducers

1993-11-30

1995-03-21

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Testing, monitoring, or calibrating

H04R 2900, G01R 2726

Patent

active

054002974

ABSTRACT:
A method and a system for testing one or more transducers, preferably acoustic transducers, from a central control unit. The transducers are individually connected to the inlet of a preamplifier (4) having a relatively high input resistance (6). A test conduit extends from the central control unit to each transducer. The test conduit communicates with the joint between the transducer and the inlet of the preamplifier (4) through a relatively small capacity (10). In this manner a method is obtained for testing the transducer, said testing being highly sensitive to the condition of the transducer and relatively insensitive to external fields.

REFERENCES:
patent: 3230449 (1966-01-01), Kaiser
patent: 4648078 (1987-03-01), Darton et al.
patent: 4648079 (1987-03-01), Stedtnitz
patent: 4942614 (1990-07-01), Hamilton

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