A Precision Programmable Bipolar V/f Instrumentation Module

A precision bipolar voltage-to-frequency converter, which is computer-programmable from a digital interface, has been produced at Lawrence Berkeley Laboratory. Utilizing NIM packaging, the 1 MHz V/f has sixteen ranges and may be operated from panel controls as well as remotely programmed. Intended for use in magnetic measurements, good performance and versatility suggest wider application. The instrument is described and the circuit design is discussed in detail. Tests of the first unit are discussed and instrument specifications are given.