Mnemonics, Inc.

Nicholas Kozlovski

Madjid A Belkerdid

D Mark Haines

Robert J Peterman

Ed Struble

A sensor system for determining deformation of an object subject to forces. The sensor system comprises an object upon which forces are exerted and a cavity within the object, a first substrate for supporting surface acoustic waves in an upper surface of the first substrate, the first substrate disposed in the cavity, a first surface acoustic wave transducer disposed on the upper surface and responsive to an interrogation signal for generating an incident surface acoustic wave in the upper surface, a first reflector array responsive to the incident surface acoustic wave for creating reflected surface acoustic waves on the upper surface, the reflected surface acoustic waves received by the transducer and having characteristics indicative of strain deformation of the object due to a force exerted on the object.

Surface acoustic wave (SAW) based strain sensor

A surface acoustic wave sensor system for use with a moving platform. The system comprises an interrogator for producing an RF interrogating signal transmitted from a first antenna. A substrate that supports surface acoustic waves is attached to the moving platform and an interdigital transducer (IDT) and reflector are mounted on the substrate. The IDT produces surface acoustic waves (SAW) responsive to the RF interrogating signal. The reflector produces reflected SAW responsive to the incident SAW and responsive to a characteristic of the moving platform. A position indicator produces a synchronization signal input to the interrogator for triggering the RF interrogating signal. The synchronization signal is timed to trigger the RF interrogating signal when the interdigital transducer is within a field-of-view of the first antenna.

Wireless surface acoustic wave temperature sensor and interrogation system apparatus capable of generating a self synchronizing shaft position indicator for moving platforms

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Orlando, FL, United States of America

Nicholas Kozlovski