Sensitive Null Detector for Precise Measurements of Integral Linearity
Satoshi Takeuchi, T. Okumura · IEEE Transactions on Nuclear Science · 1985
A method to increase the sensitivity of null detection in the linearity testing bridge is described. It is based on signal averaging to reduce the magnitude of noise in the error signal of the bridge output. Error signal of less than 0.1 mV(0.001% of 10 V) can easily be detected.