Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Automatic analytical monitor and control of industrial process
Patent
1993-02-16
1995-04-04
Alexander, Lyle A.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Automatic analytical monitor and control of industrial process
422111, G01N 2100
Patent
active
054035520
ABSTRACT:
A controller for a polymer processing system operates by emitting a controlled amplitude and frequency of coherent light (laser) energy which is scattered and absorbed by the monitored polymer dispersed throughout an instantaneous aqueous sample of a monitored material flowing continuously through a cross section of a sample chamber. The source of light energy is located an adjustable distance from one side of the sample chamber. An optical receiver (a photoresistor with a selectable filter) measures the amount of light received on the other side of the sample chamber. An output signal of the receiver may be converted into a usable process signal which is then transmitted as an input control signal to a process controller (microprocessor or microcomputer). The process controller output and display can be configured to control and read in any suitable manner. When the monitored system has feedback, the receiver output may be applied through a feedback control loop. Active polymer solids or any other relevant engineering unit or scale, such as percent concentration, may be displayed. The receiver output signal may also operate any suitable controls of any other suitable system, such as in a dairy industry application.
REFERENCES:
patent: 3574553 (1968-01-01), Weitz et al.
patent: 4155774 (1979-05-01), Randolph
patent: 4621063 (1986-11-01), Wyatt et al.
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