Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1980-07-10
1983-10-11
Marcus, Michael S.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
204 1T, 204400, 422 62, 436135, 436150, G01N 2726, G01N 2730
Patent
active
044091834
ABSTRACT:
Apparatus for ascertaining the quantity of ozone in water and for admitting additional ozone when the ascertained quantity is insufficient has two spaced-apart electrodes which consist of an alloy having gold as the predominant constituent thereof and which can be immersed into a body of water. Each electrode is connected with a discrete voltage source by way of a discrete resistor whose resistance is substantially greater than the resistance between the electrodes when the electrodes are immersed in water. The potential difference between the electrodes is measured by a differential amplifier whose output transmits a voltage signal having an intensity proportional to the percentage of ozone in the body of water into which the electrodes are immersed. A signal comparing stage compares the signal at the output of the amplifier with a reference signal denoting the desired quantity of ozone, and the stage transmits a signal to an ozonizer which admits ozone into the body of water when the intensity of signals at the output of the amplifier is less than the intensity of the reference signal.
REFERENCES:
patent: 3888754 (1975-06-01), Tiefenav
patent: 3960673 (1976-06-01), Morrow et al.
patent: 4172015 (1979-10-01), Bamford et al.
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