METHOD AND APPARATUS FOR MONITORING AND CONTROLLING A CLEANING PROCESS
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United States of America Patent
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Issued Date -
Feb 18, 2016
app pub date -
Sep 30, 2014
filing date -
Aug 18, 2014
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Abandoned
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Abstract
A method of accurately measuring the concentration of at least one of an aqueous cleaning agent and soil in an aqueous cleaning process which includes providing a source of near infrared light emitting useful amounts of light with wavelengths between approximately 0.8 μm and 2.5 μm, transmitting the near infrared light from the light source to a probe, contacting the probe with a cleaning bath sample such that one of the absorption and the reflection of the light at one or more wavelengths can be measured, transmitting the light that has interacted with the sample to a detector, measuring the change in light intensity at one or more wavelengths in the near infrared region using a near infrared detector, generating an electronic signal that is representative of the change in intensity, applying chemometric techniques to quantitatively determine the concentration of the cleaning agent and or soil, and outputting the measured cleaning agent or soil concentration. The light source is connected to the probe via a fiber-optic cable and the probe is connected to the detector via a fiber-optic cable.
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