Accession Number : ADD008106

Title :   Frequency Response Tester.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Bakewell,Henry P , Jr ; Johnson,Marguerite A

Report Date : 02 Dec 1980

Pagination or Media Count : 4

Abstract : The patent relates to apparatus and method for determining the frequency response of an acoustic sensor 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.

Descriptors :   *Patents, *Acoustic arrays, *Test equipment, Frequency response, Linear arrays, Embedding substances, Elastic properties, Transfer functions, Springs, Static loads

Subject Categories : Test Facilities, Equipment and Methods
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE