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
Servo write assembly
Stopper, motor, and disk drive apparatus
System and method for dynamic quality-of-service-based billing in a peer-to-peer network
Methods and systems for adapting a user environment
Method and system for expanding axial coverage in iterative reconstruction in computer tomography (CT)
Multi-domain dynamic group virtual private networks
Base station device and wireless communication method
  Randomly Featured Patents
Efficient intrusion detection
Tooth cleaning device
Method and system for analog to digital conversion using digital pulse width modulation (PWM)
Bandpass filter and apparatus using same
Remote controller for television receiver
Method and device for switching audio recording modes
Remote controller
Combination game call
Process and apparatus for the ink control of a printing machine