Resources Contact Us Home
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
Control device
Multi-bank queuing architecture for higher bandwidth on-chip memory buffer
Topology arrangement for achieving reliable communication in wireless automotive networks
Rear body panel cover for a motor vehicle
Managing personal information on a network
Package for product
Deceleration dependent shift control
  Randomly Featured Patents
Methods of packaging an electronic device
Worm drive with a roller ring nut
Integrated circuit nanowires
Anchorable urethane foams
Flexible printed circuit and display device utilizing the same
Umbrella with an integral anchoring structure
.sup.125 I and .sup.131 I labeled phospholipids
Food pump
Methods and apparatus for compensatng step distance in a stepping motor driven label printer
Capture display package