Accession Number : ADD000491

Title :   Temperature Compensated Measuring Gauge.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Cox,

Report Date : 16 Aug 1974

Pagination or Media Count : 9

Abstract : The patent application describes a measuring device for a ring comprising a linear variable differential transformer mounted on a pin gauge for providing a voltage proportional to ring dimension. A compensation circuit comprised of two thermistors is used for correcting dimensional error due to the difference in temperature of the ring and the pin gauge. Each thermistor provides an output voltage which is combined in a first adder and the output of the first added and the voltage output of the differential transformer are combined in a second adder to provide an output proportional to ring diameter and corrected for temperature difference.

Descriptors :   *Measuring instruments, Patents, Temperature control, Rings

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE