Accession Number : AD0744211

Title :   Utilization of Temperature Sensitive Liquid Crystals for Thermal Analysis and an Application to Transducer Investigations.

Descriptive Note : Research rept.,

Corporate Author : NAVAL UNDERWATER SYSTEMS CENTER NEWPORT R I

Personal Author(s) : Maple,Roger D.

Report Date : 30 MAY 1972

Pagination or Media Count : 38

Abstract : Cholesteric liquid crystals, because they exhibit predictable temperature-dependent color changes, are a valuable indicator for qualitative and quantitative thermal analysis, particularly the observation of varying thermal phenomena over continuous surfaces. The report describes the properties of liquid crystals, applications, and a demonstrative experiment in which liquid crystals were used to observe transient and equilibrium thermal patterns of AN/SQS-26 transducers. (Author)

Descriptors :   (*TRANSDUCERS, THERMAL ANALYSIS), (*SONAR EQUIPMENT, *NONDESTRUCTIVE TESTING), TEST EQUIPMENT, TEST METHODS, TEMPERATURE SENSITIVE ELEMENTS, CRYSTALS, LIQUIDS

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE