Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1979-05-24
1980-12-02
Kreitman, Stephen A.
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
367 13, G01L 2500, H04R 2900
Patent
active
042364019
ABSTRACT:
Apparatus and method for determining the frequency response of an acoustic ensor of a line array embedded in an elastic material to a momentary force applied to the elastic material at any point thereof. The apparatus includes a longitudinal box which has its bottom and two opposite side ends open. The device includes a slider movable at the top of the box which has an attached pivoted arm at the top. The pivoted arm has a force gauge secured thereto. The box is placed over the line array under test and the arm is pivoted to strike the surface of the line array. The force gauge attached to the pivoted arm measures the applied force while the electrical signals generated by the line array are used to find the frequency response of the acoustic sensor of the line array.
REFERENCES:
patent: 3759082 (1973-09-01), Provenzano et al.
patent: 3830091 (1974-08-01), Sinsky
patent: 3864664 (1975-02-01), Trott et al.
patent: 4090169 (1978-05-01), Adair et al.
Bakewell, Jr. Henry P.
Johnson Marguerite A.
Kreitman Stephen A.
Lall Prithvi C.
McGill Arthur A.
Sciascia Richard S.
United States of America as represented by the Secretary of the
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