Analog transfer function computer

Abstract

Conventional methods used for the determination of the transfer function of an unknown four terminal network or control system involve time domain or frequency domain testing. System response in time domain can be obtained with little effort. The analysis of the transient waveform involves subjective interpretation. The frequency domain approach is more laborious and involves analysis of magnitude and phase v-s frequency data. By employing the Transfer Function Computer, the transfer function of an unknown system can be determined directly by matching a reference and system responses. This is accomplished by systematically adjusting a series of potentiometers. Prior knownledge of system gain and general frequency response is needed. This information can be readily obtained from the Transfer Function Computer.