Resources Contact Us Home
Torsional shear wave transducer

Image Number 2 for United States Patent #5321333.

A low frequency torsional transducer for the generation and/or reception of shear waves in a substantially solid medium. The transducer includes a spool like radiating structure to which are fixedly attached spaced piezoelectric elements. The elements undergo shear movement upon being electrically excited or upon receiving shear waves. This shear movement causes the opposite ends of the radiating structure to move torsionally. The torsional movement causes radiation of shear waves which can be detected by a sensor and used to determine the degree of support for shear wave propagation in the media.

  Recently Added Patents
Process to increase selectivity to ethylene in oxygenates-to-olefins conversions
Encoding method and encoding device, decoding method and decoding device and transcoding method and transcoder for multi-object audio signals
Processing data using information embedded in a data request
Stage drive method and stage unit, exposure apparatus, and device manufacturing method
Plants and seeds of hybrid corn variety CH367819
Dynamic web page construction based on determination of client device location
Activated carbon cryogels and related methods
  Randomly Featured Patents
Pattern and method of assembling an envelope/page and mailer combination
Three-layered metal cable for tire carcass reinforcement
Emergency service apparatus and method
Turbo code decoder with modified systematic symbol transition probabilities
Trigger sprayers
Multi-modular arrangement for anaesthesia
Tire having a carcass ply turn-up portion with a concave segment
Dual temperature concentration system
Sensorless start of synchronous machine
Method to enhance channel stress in CMOS processes