Accession Number : ADD007623

Title :   Precision Optical Inclinometer.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Walker,Clifford G

Report Date : 03 Mar 1980

Pagination or Media Count : 5

Abstract : An inclinometer which employs a light and the laws of optics for measuring the tilt angle from the local horizontal. The local horizontal is established by using a low viscosity reflecting liquid. An interferometer sums two light beams at a predetermined point and the resulting interference finge pattern is detected by a detector. The fringe pattern changes as the test table changes pitch angles. (Author)

Descriptors :   *Patent applications, *Optical detectors, *Horizontal orientation, *Tiltmeters, Interferometers, Refractive index, Liquids, Tilt, Sensitivity, Angles

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE