Accession Number : AD0655041

Title :   METHOD OF DETERMINING THE OSCILLATION PERIOD OF PENDULUMS FROM OBSERVATIONS WITH SYNCHRONOUS CLOCKS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Medvedev,N. M.

Report Date : DEC 1959

Pagination or Media Count : 18

Abstract : In order to reduce the time of the observations and, consequently, to increase their accuracy, a synchronous clock with stroboscopic registration was used. This clock was driven by alternating current, the frequency of which was set by the primary frequency standard of the All-Union Scientific-Research Institute of Metrology (VNIIM). The pendulum-period values were obtained in a few minutes of observation with a precision that is unattainable in eight hours of observation with a chronometer.

Descriptors :   (*OSCILLATION, TEST METHODS), CLOCKS, FREQUENCY, STANDARDS, MEASUREMENT, USSR

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE