Title :
A Universal Biological Interval Timer
Author :
Caldwell, W.Morton
Author_Institution :
Department of Physiology and Biophysics, West Virginia University Medical Center, Morgentown, W. Va. 26505.
Abstract :
A circuit for the measurement of biological time intervals from 0.1 ms to 10 s is described. This device accepts biopotentials, stimuli, or transducer signals to produce an instantaneous dc voltage readout proportional to the time between two successive input signals. Digital preconditioning and analog integration are used to simplify the design.
Keywords :
Capacitors; Circuits; Electrooptic deflectors; Frequency; Monitoring; Olfactory; Rabbits; Resistors; Timing; Voltage; Amplifiers; Animals; Biomedical Engineering; Dogs; Heart Conduction System; Neurophysiology; Time; Transducers;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1971.4502873
