Accession Number : AD0164408

Title :   Transducer for Measuring the Displacement of an Electrically Conductive Objective.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Jaquay,Paul T.

Report Date : 30 JAN 1973

Pagination or Media Count : 7

Abstract : The patent describes a motion detection transducer comprising of a sensing element and an excitation-shield element, both elements being formed of a conductive metal. The sensing element, whose front surface is usually flat, is partially or completely surrounded by and spaced apart from the excitation-shield element. The front surfaces of both elements are in the same geometric plane. The sensing element is connected directly to a charge amplifier by means of a coaxial cable while the excitation-shield element is connected to a source of constant, direct current voltage. The transducer is particularly useful in measuring the relative motion of electrically conductive surfaces or objects.

Descriptors :   *Transducers, *Patents, Displacement, Measuring instruments, Motion

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE