Accession Number : AD0477136

Title :   RESEARCH IN SURVEYING, MAPPING, AND GEODESY APPLICATION OF CORIOLIS FORCE TO GEODETIC MEASUREMENTS.

Descriptive Note : Interim rept.,

Corporate Author : FRANKLIN INST RESEARCH LABS PHILADELPHIA PA

Personal Author(s) : Wachtell, George Peter

Report Date : DEC 1965

Pagination or Media Count : 46

Abstract : The Coriolis force may be used to determine true North. Following general principles and accuracy considerations, mechanical devices are discussed. These include a modified Foucault pendulum, vibrating masses, the Foucault directional gyroscope, and a cross-shaped vibrator. The posibility of using the human ear as a sensitive detector is also suggested. Devices based on fluid motion, as well as some other devices described in the literature, are discussed. (Author)

Descriptors :   *GEODESICS), (*CORIOLIS EFFECT, MAPPING, ERRORS, MEASUREMENT, GYROSCOPES, HUMANS, EAR, EARTH(PLANET), INSTRUMENTATION, SUSPENSION DEVICES, WEIGHT, OSCILLATION, COMPASSES.

Subject Categories : Geodesy

Distribution Statement : APPROVED FOR PUBLIC RELEASE