Somatic cell analyser

  • US 6,031,367 A
  • Filed: 02/17/1998
  • Issued: 02/29/2000
  • Est. Priority Date: 02/13/1998
  • Status: Expired due to Term
First Claim
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1. A somatic cell analyser for on-line somatic cell count (SCC), comprising:

  • a flow cell for receiving a sample of milk;

    detection means for providing an indication of the number of sodium ions in said sample and generating an ion count signal whenever the number of sodium ions is higher than a reference assumed to indicate absence of somatic cells in said sample;

    control means for receiving said ion count signal, comparing same with a plurality of quality thresholds corresponding to a plurality of quality categories, and classifying said sample in a quality category; and

    means for indicating a set of parameters characterizing said quality category;

    wherein said detection means comprises;

    means for generating an ac signal;

    a probe with two electrodes placed in said flow cell for modulating said ac signal according to the number of sodium ions in said sample and providing a modulated signal;

    a comparator for comparing said modulated signal with said reference to produce a ion detection signal; and

    a counter for converting said ion detection signal into said count signal.

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