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INTEGRATED VIBRATION MEASUREMENT AND ANALYSIS SYSTEM

  • US 20120041695A1
  • Filed: 08/16/2010
  • Published: 02/16/2012
  • Est. Priority Date: 08/16/2010
  • Status: Abandoned Application
First Claim
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1. A real-time signal conversion apparatus for use in measuring vibration levels of a machine that are indicative of a machine fault condition or a machine performance, the signal conversion apparatus comprising:

  • a vibration sensor for producing an analog vibration signal comprising a dynamic vibration signal component and a direct current (DC) signal component, wherein at least the analog vibration signal component is indicative of performance of the machine or a fault condition of the machine;

    an analog-to-digital conversion (ADC) circuit for sampling the analog vibration signal at an input data rate to convert the analog vibration signal into a first digital vibration signal, the ADC circuit having a dynamic range to enable removal of the DC signal component by real-time digital filtering; and

    a digital infinite impulse response filter for receiving the first digital vibration signal at the input data rate and performing a mathematical operation at the input data rate on the first digital vibration signal to generate a second digital vibration signal substantially in real time, wherein the second digital vibration signal is indicative of the vibration level of the machine, and wherein the mathematical operation is selected from the group consisting of an integration operation and a differentiation operation.

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