SAMUEL A FRANCIS
Engineering in Marion, MA
License number
Massachusetts 14278
Expiration Date
Jun 30, 1984
Type
Mechanical Engineer
Address
Address
Marion, MA 02738
Professional information
Polymer Hydrophone Array With Multilayer Printed Circuit Wiring
US Patent:
4638468, Jan 20, 1987
Filed:
Aug 3, 1984
Appl. No.:
6/637664
Inventors:
Samuel A. Francis - Marion MA
Assignee:
Raytheon Company - Lexington MA
International Classification:
H04R 100
US Classification:
367153
Abstract:
A composite layered assembly of piezoelectric polymer layers and printed wiring layers are configured so that plated-through holes make electrical connection from the outputs of a plurality of polymer hydrophones formed on one or more polymer layers to a plurality of output conductors on a single plane after each hydrophone output is amplified in its associated amplifier.