| 摘要 |
FIELD: physics, measurements. ^ SUBSTANCE: invention is related to the field of seismic survey, in particular to process of performance of surface spatially distributed seismic surveys in mode of durable programmable observations, also when executing passive seismic monitoring, and also when working in especially remote regions and complicated surface conditions. Substance of technical solution according to invention consists in organisation of automatic measurement of actual error of clock oscillator frequency relative to signals of accurate time signals (PPS), its memorising and application for generation of accurate time intervals. Besides autonomous detector additionally comprises device for automatic tuning and correction of clock frequency of highly stable generator, the first input of specified device of automatic tuning and correction is connected to clock pulse oscillator, the second one - to inlet of accurate second pulse (synchronising output) of GPS - receiver, and output - with the third input of time synchronisation unit. ^ EFFECT: provision of highly accurate automatic tuning of clock frequency. ^ 2 cl, 5 dwg |
