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
Polishing composition
Method of applying a spherical correction to map data for rendering direction-of-travel paths on a wireless communications device
Economic filtering system for delivery of permission based, targeted, incentivized advertising
Extreme ultraviolet light source device and method for generating extreme ultraviolet light
Tunnel magnetoresistance read head with narrow shield-to-shield spacing
Data output apparatus and data output method
Image forming apparatus having a primary transfer unit, a secondary transfer unit, and a direct transfer unit
  Randomly Featured Patents
Network bookmarking based on network traffic
Polyols for the production of rigid polyurethane foams
Double twine arm for dispensing twine into a bale chamber
Gasket and mandrel assembly for pipe joints
Guitar bridge
Aircraft terrain advisory system
Apparatus and method for temperature compensation of crystal oscillators
Motorized reduction gear unit comprising a hollow casing having a cover plate, especially for a screen wiping apparatus
Electric storage batteries
Method of joining self-aligning optical fibers