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Method and apparatus for monitoring and ensuring product quality

  • US 5,576,967 A
  • Filed: 12/29/1993
  • Issued: 11/19/1996
  • Est. Priority Date: 05/22/1992
  • Status: Expired due to Fees
First Claim
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1. A method of monitoring the product quality of a continuously produced product and comprising the steps ofgenerating a continuous test signal which is representative of a quality parameter of the product,digitizing the test signal,determining a frequency distribution from the digitized test signal, which indicates how often a specific value of the test signal occurs, andintegrating the frequency distribution in segments of the frequency distribution to derive a statistically relevant feature which describes the product quality.

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