Double-light path imitation turbidimeter

Double-light path imitation turbidimeter

  • CN 2,131,103 Y
  • Filed: 02/16/1992
  • Issued: 04/28/1993
  • Est. Priority Date: 02/16/1992
  • Status: Active Grant
First Claim
Patent Images

1. , imitative double light path turbidimeter is a kind of environmental protection surveying instrument, and it is by illuminator (1);

  • Lens (2);

    Sample groove (3);

    Photoelectric cell (4);

    Differential circuit (5);

    Constant current source (6) is formed, and constant current source (6) is connected on the differential circuit (5) with the photoelectric cell (4) of receiving sample receiving trough (3) signal, and the electric current that it is characterized in that the generation of constant current source (6) and photoelectric cell (4) is in the differential amplification of differential circuit (5).

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