Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Relative motion sensor










Image Number 2 for United States Patent #4888991.

A relative motion sensor sensing relative vibratory motions between two objects comprises a pair of eleongated members joined to one another at the first extremities thereof and respectively include a fastening means disposed at the second extremities thereof opposite to the first extremities for affixing the second extremities to the two objects under the relative vibratory motion. A Piezo electric element is confined in a space between the two elongated members adjacent to the joined first extremities thereof, wherein the relative vibratory motions transmitted to the second extremities of the two elongated members alternately change the pressure exerted on the Piezo electric element by the two elongated members and, consequently, the Piezo electric element generates alternating electromotive forces representing the relative vibratory motions.








 
 
  Recently Added Patents
Antibodies to OX-2/CD200 and uses thereof
Method of estimating remaining constant current/constant voltage charging time
High-voltage AC light-emitting diode structure
SONOS stack with split nitride memory layer
Method and system for monitoring service quality in a mobile node
Virtual links in a routed ethernet mesh network
Information display device and program storing medium
  Randomly Featured Patents
Shearing method for thin plate
Rifle cartridge
Medical graft connector and methods of making and installing same
Multi-grid ion beam source for generating a highly collimated ion beam
High-current electrical coil, and transformer construction including same
Radioisotope fueled rotary actuator for micro and nano vehicles
Golf swing device
Mattress carrier
Vending machine panel
Explosively activated egress area