Sperm densimeter

Details Sperm densimeter Sperm densimeter

1994-02-17

1995-03-28

Rosenberger, Richard A.

Optics: measuring and testing

For light transmission or absorption

By comparison

G01N 2100

Patent

active

054022401

ABSTRACT:
An instrument for measuring sperm concentration and calculating dose value and having an optical assembly with a light source, a specimen holder and a photodetector, a computation unit, a display, and a storage unit for storing a concentration calculation equation. The computation unit provides for calculating sperm concentration using the stored concentration calibration equation and a sample transmittance value, the optical assembly provides for measuring transmission of the specimen holder while empty with the light source energized, sample transmission of the specimen holder with a semen specimen with the light source energized, and dark cell output of said photodetector with said light source unenergized, and dark cell output of said photodetector with said light source unenergized, and said computation unit further provides for calculating actual sample percent transmission.

REFERENCES:
patent: 3684378 (1972-08-01), Lord
patent: 4050821 (1977-09-01), Cuthbert et al.
patent: 4566798 (1986-01-01), Haas
patent: 4589774 (1986-05-01), Dupree et al.
patent: 4632562 (1986-12-01), Dupree et al.
patent: 4878755 (1989-11-01), Siegmund et al.

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