Instrumentation for the Measurement of Alternating Voltage and Angle of Phase Difference in the Frequency Range 0.3 Hz to 50 kHz

摘要

It is a must for any calibration system intended for the determination of the complex transfer coefficients of vibration sensors that the phase-frequency response of its electronic sub-units are determined and the total system is calibrated in its entirety. Since at present no national metrological institution is equipped with the necessary measurement facilities, a research project was carried out jointly by SPEKTRA and PTB, in the context of which such instrumentation was developed, constructed and linked to the German national standard.