Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1992-01-16
1994-12-20
Snay, Jeffrey R.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
422 8205, 422111, 356 73, 137 88, 7386303, G01N 2105, G01N 2153
Patent
active
053743989
ABSTRACT:
An apparatus for analyzing particles in a sample liquid which classifies or counts components in the sample liquid by image processing. The liquid sample can be urine or the like and is passed in a flattened flow. The apparatus comprises sheath liquid supply apparatus sample liquid discharge apparatus a, temperature sensor for detecting the ambient temperature and temperature measuring circuit for measuring the temperature depending on the output of the temperature sensor, and a driving circuit for driving the sample liquid discharge apparatus by correcting the sample liquid discharge flow rate depending on the signal from the temperature measuring circuit. The sheath liquid is supplied at a specific pressure, and the sample liquid discharge quantity is corrected depending on the ambient temperature. When changed to the high scale factor taking state or low scale factor taking state, a different correction rate is set. Thus, if the environmental conditions such as temperature should vary, the sample liquid volume is kept constant, so that particles may be analyzed at high precision.
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patent: 4896961 (1990-01-01), Ito
patent: 5030002 (1991-07-01), North, Jr.
patent: 5040890 (1991-08-01), North, Jr.
Perry, R. H. et al. "Perry's Chemical Engineers' Handbook" 6th ed., New York, McGraw-Hill Book Co., 1984, pp. 5/27-5/28.
Isami Yasushi
Kojou Naomiki
Snay Jeffrey R.
TOA Medical Electronics Co., Ltd.
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