Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Optical fiber sensor utilizing a swellable detector material










Image Number 2 for United States Patent #5757988.

An optical fiber sensor for inducing a microbend in an optical fiber in the presence of a detectable fluid such as water includes a chamber with an expansible block located therein. When water enters the chamber, the block expands in a particular direction to move a pusher bar which, in turn, moves a puller wire to bend the fiber at a location remote from the chamber. A gap may initially be provided between the expansible block and the pusher bar so that the presence of water vapor within the chamber will not move the pusher bar but the presence of liquid water will.








 
 
  Recently Added Patents
Resin composition and molded article
Measurement of an analyte on the skin using a hue angle
Range extension techniques for a wireless local area network
Semiconductor thin film, thin film transistor, method for manufacturing same, and manufacturing equipment of semiconductor thin film
Method for decoding a spatially multiplexed data signal using a maximum likelihood detection
Electrical conduit containing a fire-resisting thermoplastic composition
Method and apparatus for providing contention-based resource zones in a wireless network
  Randomly Featured Patents
Mobile sizing station
Replacement cassette tape for tape transfer device
MOS transistor on an SOI substrate with a body contact and a gate insulating film with variable thickness
Rotating heart-shaped plaque
Preparation of esters by the thermal decomposition of a bis(2-bromoalkyl)tellurium dicarboxylate compound
Fuel cell system for transportation applications
Self-calibrated alignment and overlay target and measurement
Compact combination burner with adjustable spin section
System and method for computing and displaying effective bid and ask information
Apparatus and method for computation of a pricing index