Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Vibration control system










Image Number 6 for United States Patent #5012428.

A vibration control system for generating desired random vibration environment with a given reference Power Spectral Density (P.S.D.) using a vibration generator on which a test object is fixed is disclosed. A detected signal representing vibration of a test object is converted into a response spectrum by Fast Fourier Transform (FFT) and the response spectrum is compared with the reference spectrum to determine a drive spectrum. Random drive signal having the determined drive spectrum amplitude is then generated continuously, and the signal is applied to a vibration generator on which the test object is fixed. This signal must be random i.e. nonperiodic, and therefore consisting of continuous spectral components with sufficient statistical independence. Method and facility to generate above mentioned signal are the principal of the present invention.








 
 
  Recently Added Patents
Optical module for a microlithography objective including holding and supporting devices
Methods, systems, and media for swapping faces in images
Ice data collection system
Alleviation of laser-induced damage in optical materials by suppression of transient color centers formation and control of phonon population
Projection illumination system for EUV microlithography
Pre-primed roofing membrane
Method for manufacturing photoelectric conversion device
  Randomly Featured Patents
Method and apparatus for electrostatically depositing a medicament powder upon predefined regions of a substrate
Liquid crystal display device
Power unit swinging type motor cycles
Electrical connector bridge arrangement with release means
Method for sharing static link code by software components in DLL and main program
Apparatus for controlling electric clothes dryer and method therefor
Integrated circuit heat spreader stacking method
Method of conditioning tobacco
Anti-ischemic pharmaceutic compositions
Process for producing glutamine derivative