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