Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1998-01-26
2000-09-05
Snay, Jeffrey
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
422 8205, 422 66, 436 44, 436 79, 436125, 436163, 436169, G01N 2175, G01N 2177, G01N 2180
Patent
active
061138584
ABSTRACT:
An on-site monitor is disclosed for providing automatic measurements of chemical concentrations in a liquid or gaseous environment. The opto-electronic monitor has an extended probe, which can be inserted into the liquid or to be in contact with the ambiance, comprising a indicator chamber for continuously supplying fresh indicator material, a light source, and a detector. The light source and the detector are either embodied outside of liquid or into the extended plastic probe inside the liquid. A delivery unit, which is activated by a timer, delivers a small amount of indicator material into the liquid or a sampling cavity. The indicator material reacts with the ions in the liquid automatically. The light source has a wavelength which matches with the indicator's absorption wavelength and the detector measures the transmission (or reflection) through the indicator material or solution. The optical signal is converted into an electrical signal, calibrated with a known standard, and then displayed on an LED digital meter. The invention has the advantage of automatically and continuously measuring the chemicals on-site with self-powered, low maintenance, and simple operation.
REFERENCES:
patent: 5004696 (1991-04-01), Clickenbeard
patent: 5648047 (1997-07-01), Kardish et al.
patent: 5925572 (1999-07-01), Byrne et al.
Ho Winston Z.
Tang Ruey-Long
McNeil Jennifer C.
Snay Jeffrey
Yu Philip K.
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