Aperture module for use in particle testing apparatus

Details Aperture module for use in particle testing apparatus Aperture module for use in particle testing apparatus

G - Physics

01

N

324/46

G01N 27/02 (2006.01) G01N 15/06 (2006.01) G01N 15/12 (2006.01)

Patent

CA 1090424

ABSTRACT An aperture module for obtaining signals from microscopic particles suspended in a sample blood solution which passes through a scanning aperture. A module housing including an aperture holder is mounted on a container or bath containing a body of the particulate liquid suspension to be tested. The aperture holder with aperture formed therein extends into the vessel to permit passage of the sample through the aperture to an outlet chamber immediately behind the aperture. The chamber is connected to a source of clean electrolyte and has a narrowed or reduced dimension portion positioned immediately behind the aperture. A vacuum is applied to the chamber to cause the sample to be drawn through the aperture for testing thereof. An optical hemoglobinometer is positioned in association with the bath to measure the hemoglobin content of the solution to be tested.

296820

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