Pressure gradient pickup

Details Pressure gradient pickup Pressure gradient pickup

1987-01-13

1989-08-22

Fuller, B. R.

Acoustics

Diaphragm

Microphone type

181160, 181171, 381153, 381158, 381159, 381174, 381177, 381187, 381193, G10K 1300

Patent

active

048587192

ABSTRACT:
A pressure gradient pickup, particularly a capacitor microphone or a dynamic microphone, has a diaphragm arranged in a housing and at least one sound entry opening which conducts the sound to the rear side of the diaphragm. Acoustically acting phase-shifting sections are connected in the interior of the housing to the at least one sound entry opening. The at least one sound entry opening is located at least approximately in the same plane as the diaphragm and is preferably arranged concentrically relative to the diaphragm edge.

REFERENCES:
patent: 1964606 (1934-06-01), Thures
patent: 2529467 (1950-11-01), Wiggins
patent: 2699473 (1955-01-01), Kettler et al.
patent: 3418437 (1968-12-01), Hoffmann
patent: 3627558 (1957-02-01), Wiggins
patent: 4239945 (1980-12-01), Atoji et al.
patent: 4258235 (1981-03-01), Watson
patent: 4581496 (1986-04-01), Sweeny

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