Digital Instrument Response Correction Method for Force-Balance Accelerometer

Abstract eng:
The analysis of instrument response errors for force-balance accelerometer of digital accelerograph system is carried through in this paper, a method for correcting instrument response errors has been put forward (the differential-differential method) , i.e. the un-correction acceleration data are treated by low-pass filtering, they are differentiated twice with approximate ideal differentiators to obtain the corrected accelerogram. In allusion to the earthquake instrument system (KIS) of Daya bay nuclear power s tation, the instrument response correction demonstration is given, and the corresponding compute processing software are compiled. The method is applicable for instrument response correction processing of accelerogram recorded by digital accelerograph of China strong motion network.

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