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Multi-beam liquid-drop size/rate detector apparatus

  • US 5,186,057 A
  • Filed: 10/21/1991
  • Issued: 02/16/1993
  • Est. Priority Date: 10/21/1991
  • Status: Expired due to Fees
First Claim
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1. A method for extrapolating the volume of a free falling fluid drop comprising:

  • generating a first energy beam having a predetermined height (A) and a second energy beam having a predetermined height (B), to cross a path of the free falling fluid drop, with an upper edge of the first beam separated from an upper edge of the second beam by a predetermined distance (k);

    measuring a time (t1) for the drop to pass through the first beam;

    measuring a time (t2) for the drop to pass from a predetermined point within the first beam to a predetermined point within the second beam;

    measuring a time (t3) for the drop to pass through the first and second beams;

    calculating an approximate drop diameter (dd) using conventional mathematical relationships between the predetermined heights (A and B), the predetermined distance (k), the measured times (t1, t2 and t3) and a gravitational acceleration constant (g); and

    calculating a fluid volume of the drop based on the drop diameter.

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