Accession Number : AD0164016

Title :   Ferroelectric Ceramic Stack.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Abbott,Frank R.

Report Date : 24 OCT 1972

Pagination or Media Count : 4

Abstract : The patent describes a unique coupling arrangement for joining the thin leaf conductors interposed between adjacent ones of a stack of ferroelectric elements functioning as an acoustic energy projecting transducer. A separate resilient helical spring element is secured to each metallic conductor and has an orthogonally shaped portion to slidably contact one of two longitudinally extending bus bars sized to reach through the orthogonal portions. By coupling alternate ones of the helical springs to one of the bus bars and the other alternate ones of the helical springs to the other bus bar, the ferroelectric rings are connected electrically in parallel to provide an additive composite driving force for the transducer when a suitable driving field is impressed across the stack.

Descriptors :   (*ELECTROACOUSTIC TRANSDUCERS, *PATENTS), FERROELECTRIC CRYSTALS, ELECTRIC CONNECTORS, SPRINGS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE