Resources Contact Us Home
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
Shot scent dispenser
Assembly for providing an aligned stack of two or more modules and a lithography system or a microscopy system comprising such an assembly
Glass or glass-ceramic pane reflecting infrared radiation
Method for processing an algae medium containing algae microorganisms to produce algal oil and by-products
Method and system of extending battery life of a wireless microphone unit
Microbial fuel cell and method of use
Method and system for distributing load by redirecting traffic
  Randomly Featured Patents
Volume-imparting hair treatment compositions
Auger bit
System, device, and method for supporting virtual private networks
Melting icebergs to produce fresh water and mechanical energy
Procedure for manufacturing jai alai baskets
Process of preparing styrenic polymer particles
Spindle motor and method for manufacturing same
Particle based electrochemiluminescent assays
Surface-following type measuring machine
Cocaine analogs