Accession Number:

ADD009453

Title:

Heat Measuring Device.

Descriptive Note:

Patent Application,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1981-11-18

Pagination or Media Count:

10.0

Abstract:

A heat measuring device is provided for remotely measuring temperature of the surface of a body and is readily adaptable for measuring skin friction due to fluid flow over a body. A surface of a body is coated with cholesteric liquid crystals which change color with temperature and a spot on the coated surface is heated by a laser beam. Surface temperature is monitored by illuminating the heated spot by light and directing the light reflected from the liquid crystals to a photomultiplier tube. Laser power at the surface is indirectly measured by a beam splitter and a photodetector. Author

Subject Categories:

  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE