Patents Assigned to Spectral Dynamics Corporation of San Diego
  • Method and apparatus for developing balance information for rotating equipments and assemblies
    Patent number: 3939715
    Abstract: A system for determining the phase displacement of vibration data signals relative to tachometer point signals by synthesizing a sine wave signal having the amplitude of the vibration data signals, shifting the phase of the synthesized sine wave signal to null out the vibration data signals and determining the phase and amplitude of the synthesized sine wave signal relative to the tachometer point signals.
    Type: Grant
    Filed: June 24, 1974
    Date of Patent: February 24, 1976
    Assignee: Spectral Dynamics Corporation of San Diego
    Inventor: Robert D. Davis