公开(公告)号：CA1318725C

公开(公告)日：1993-06-01

申请号：CA582478

申请日：1988-11-08

Applicant: STANADYNE INC

Inventor： WHITE CHRISTOPHER ,  VIRELLO MICHAEL A ,  YELKE EDWARD ,  HUFF JOHN R

IPC: F02M65/00 ,  G01L9/00 ,  G01L23/10 ,  H01L41/04 ,  G01L9/08

Abstract: A piezoelectric sensor adapted for incorporation into a high pressure fuel line employs a pair of piezoelectric transducer elements which are mounted in diametrically opposed bores of a main body. The body forms an axially extending fluid conduit. The main body also has a deformable wall section adjacent the transducer elements. A conductor ring extends the circumference of the main body. The transducer elements electrically connect with the ring so that a pressure pulse traversing the conduit deforms the wall section and produces a mechanical stress on the transducer elements to generate a voltage signal at the conductor ring. 21