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










Image Number 8 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
LO generation with deskewed input oscillator signal
Electronic device
Vacuum cleaner filter adapter ring
Instantaneous single click perpetual date mechanism
Print control server, print controlling method, and print control program
Vibration disturbance estimation and control
Transmission device
  Randomly Featured Patents
Pull stud
Configuring input and output speeds in a media handling system
Compression wrap insert
PROCESS FOR THE PREPARATION OF N-(1,1-DIMETHYLETHYL)-4-[[5'-ETHOXY-4-CIS[2-(4-MORPHOLINO)ETHOXY]-2'-OXOSP IRO[CYCLOHEXAN-1,3'[H]INDOL]1'(2'-H)-YL]-SULFONYL]-3-METHOXYBENZAMIDE AND ITS SALTS
Watch
Data processing device, data processing method, program, program recording medium, data recording medium, and data structure
Infrared-absorbing cyanine dyes for laser ablative imaging
Gas laser apparatus having constant power output
Flexible premium income annuity system and method
Brake shoe for a spot-type disc brake