A potentiometer is a high precision instrument that measures voltage by comparing an unknown voltage to a standard one. This device was made by Leeds & Northrup Co., out of Philadelphia, in 1966. It was intended as a portable instrument to be used in labs for measuring the output of thermocouples, thermal converters, strain gauges, and other transducers. With its standard cell battery, it could also be a source of calibrated voltage.
30.3 x 19 x 22.5 cm
Matthew J. Brown
NJIT Otto H. York Department of Chemical and Materials Engineering
potentiometer, millivolt, voltage, measuring, measuring instrument