Title :
A Differentiator for Low-Frequency Signals
Author_Institution :
Department of Anatomy, University of Colorado Medical Center
Abstract :
An electronic differentiator specifically for low-frequency signals is described. The difference between a signal and its staircase approximation is computed; the peaks of this function approximate the time derivative of the input signal. By regulating the width of the steps in the staircase function, very slow signals can be differentiated.
Keywords :
Biology computing; Circuits; Clocks; Differential amplifiers; Electrical stimulation; Electromyography; Frequency; Operational amplifiers; Rhythm; Synchronization; Animals; Anura; Biofeedback (Psychology); Electronics, Medical; Rana pipiens;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1978.326291
