Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Sensor for measuring a vibrating surface obscured from view










Image Number 5 for United States Patent #7564567.

Described are a sensor and a method for measuring a vibration of a surface obscured from view. The sensor includes a narrowband source of a terahertz beam, a beamsplitter, a beam combiner and a terahertz detector. The beamsplitter splits the terahertz beam into a sample beam for irradiating the surface and a reference beam. The beam combiner combines the sample beam scattered from the surface and the reference beam. The terahertz detector generates an electrical signal based on a modulation of the power of the combined beams due to the vibrating surface. The electrical signal indicates a characteristic of the surface vibration. Homodyne or heterodyne detection can be utilized. Advantageously, the sensor can see surfaces that are covered, concealed or otherwise obscured behind optically opaque materials, including plastic, cloth, foam, paper and other materials. Thus the sensor has a wide variety of applications where conventional vibrometers are not practical.








 
 
  Recently Added Patents
Portable gaming device and gaming system combining both physical and virtual play elements
Resin composition and molded article
System and method for providing dynamic navigation through a property to a selected destination
Use of endogenous promoters in genetic engineering of Nannochloropsis gaditana
Relative pose estimation of non-overlapping cameras using the motion of subjects in the camera fields of view
Externally gapped line arrester
Reliable and accurate usage detection of a software application
  Randomly Featured Patents
Magneto-rheological fluid device
Method and apparatus for image forming capable of effectively eliminating color displacement by recognizing a rotational position of a rotating member with a mechanism using detection marks
Type font
Medicaments based on metronidazole or on a synergic mixture of metronidazole and clindamycin
Method of and apparatus for bending glass sheets
Replacement accumulator plate and method of use
Rotary debris remover
Integrated, proportionally controlled, and naturally compliant universal joint actuator with controllable stiffness
Gaming device and method having purchasable enhanced paytables
Gun holster