A New Automatic Curve Slope Meter
E. C. Servetas, M. I. Kerayannis, A. V. Vlachakis · Instrumentation Science & Technology · 1977
An electronic instrument has been designed and constructed for automatic slope measurements at any point of a curve which describes a physical or chemical phenomenon. The instrument possesses high stability and noise immunity and is based on a signal chopping-selective amplifier technique, which reduces the overall drift at the instrument output down to ±10 μv/sec and increases the signal to noise ratio by 3.