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
Rim for a TV receiver
Digital IF demodulator for video applications
Salts and polymorphs of desazadesferrithiocin polyether analogues as metal chelation agents
Architecture, system and method for testing resistive type memory
System and method for providing an extended platform for an operating system
Method of measuring specific absorption rate of electromagnetic waves
Process and intermediates for preparing lapatinib
  Randomly Featured Patents
Economy poke-thru
Sand-introducing device using air, and method and apparatus for producing a mold
Method for inverse multiplexing
Process for the arc welding of nitrogen alloyed steels
Method and means for fixing a joint prosthesis
System and method for efficient distribution of application services to a plurality of computing appliances organized as subnets
Projection display system using multiple light sources and polarizing element for using with same
Hollow polymer microcapsules and method of producing the same
Twin-screw kneading apparatus
Periphyton filtration pre- and post-treatment system and method