Instrumentation for Analog Differentiator at Low Frequencies
- 1 January 1969
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 40 (1) , 95-98
- https://doi.org/10.1063/1.1683760
Abstract
Sources of errors and noise in analog differentiators are reviewed, together with techniques for minimizing signal distortion. A modified basic operational differentiator is augmented with a linear phase filter. Accurate derivatives are obtained over the range spanning dc to 1 Hz. An inexpensive instrument is presented which reduces noise to a low level while minimizing delay distortion of the signal.Keywords
This publication has 1 reference indexed in Scilit:
- Active low-pass filter designIEEE Transactions on Audio, 1965