Accession Number : ADA320141
Title : Final Report on Engineering Evaluation of Scanning Sonar Equipment Model QHD, Serial No. 1.
Descriptive Note : Final rept.,
Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC
Personal Author(s) : Elliott, H. H., Jr
PDF Url : ADA320141
Report Date : 20 JUL 1953
Pagination or Media Count : 162
Abstract : A production equipment, Serial Number 1 of the Model QHD Scanning Sonar Equipment manufactured by the Raytheon Manufacturing Company, Submarine Signal Division, Waltham, Mass, under contract NObsr-42064, was delivered to this laboratory for tests to determine compliance with references (f) and (g). The equipment was received 20 September 1951. A field change modification unit, the QHD Receiver Storage Scanner, was received 5 May 1952. Engineering evaluation of the equipment (less the modification unit) was started 12 December 1951. Testing of the modification unit to determine compliance with references (h) and (i) was started 22 May 1952. In compliance with reference (d) the transducer unit was returned to the manufacturer on a May 1952 for correction of fault in the MCC section and for modification of the rubber boot. The transducer was returned to this laboratory on 3 September 1952 and testing was resumed on 5 September 1952. As directed by reference (e) the completion of the Shock and Vibration tests was canceled on 3 March 1953.
Descriptors : *SCANNING SONAR, TEST AND EVALUATION, SONAR SOUND ANALYZERS, SONAR ECHOES, TARGET POSITION INDICATORS, HYDRODYNAMICS, SONAR TRANSDUCERS, SONAR RECEIVERS, ACOUSTIC FIELDS, ECHO RANGING, ACOUSTIC BEAMS, BANDPASS AMPLIFIERS.
Subject Categories : Acoustic Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE