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公开(公告)号：US12287283B2
公开(公告)日：2025-04-29
申请号：US17363657
申请日：2021-06-30
Applicant: Ecolab USA Inc.
Inventor： Hui Li , Bingzhi Chen , Brandon Davis
Abstract: An optical sensor may be used to measure the concentration of calcium in a water sample, such as a water sample obtained from industrial process water system like a cooling tower system, a boiler water system, or a waste water system. To measure the concentration of calcium, an indicator or reagent may be added to the water sample to form a complex that absorbs light. The absorbance profile of the complex may be non-linear over a range of calcium concentrations. However, the absorbance profile can be linearized to provide calibration coefficients that are subsequently used to determine the concentration of calcium in samples having unknown calcium concentrations. The linearization of the absorbance profile can allow the optical sensor to be calibrated using two solutions. This can reduce the complexity and cost of calibrating the optical sensor, which may otherwise require at least three calibration solutions to capture the non-linear profile of the absorbance curve.
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公开(公告)号：US20210123865A1
公开(公告)日：2021-04-29
申请号：US17078836
申请日：2020-10-23
Applicant: Ecolab USA Inc.
Inventor： Kun Xiong , Xuejun Wang , William A. Von Drasek , Brandon Davis
Abstract: The disclosed systems and method utilize the autofluorescence, optic imaging, and heat transfer resistance technologies to monitor the same simulated surface area for deposits. The systems and methods may provide continuous monitoring, detection, characterization and quantification of deposits. Utilizing this information, an associated control system may initiate alarms, initiate a chemical treatment operation, and adjust corresponding chemical treatment and preventive protocols to minimize and/or eradicate the issue.
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公开(公告)号：US11662314B2
公开(公告)日：2023-05-30
申请号：US17078836
申请日：2020-10-23
Applicant: Ecolab USA Inc.
Inventor： Kun Xiong , Xuejun Wang , William A. Von Drasek , Brandon Davis
CPC classification number: G01N21/6456 , B08B9/023 , G01N17/008 , G01N21/64 , G01N21/6486 , G01N21/94 , G08B21/182 , C02F2303/20 , C02F2303/22 , G01N2021/8416
Abstract: The disclosed systems and method utilize the autofluorescence, optic imaging, and heat transfer resistance technologies to monitor the same simulated surface area for deposits. The systems and methods may provide continuous monitoring, detection, characterization and quantification of deposits. Utilizing this information, an associated control system may initiate alarms, initiate a chemical treatment operation, and adjust corresponding chemical treatment and preventive protocols to minimize and/or eradicate the issue.
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公开(公告)号：US20210404950A1
公开(公告)日：2021-12-30
申请号：US17363657
申请日：2021-06-30
Applicant: Ecolab USA Inc.
Inventor： Hui Li , Bingzhi Chen , Brandon Davis
Abstract: An optical sensor may be used to measure the concentration of calcium in a water sample, such as a water sample obtained from industrial process water system like a cooling tower system, a boiler water system, or a waste water system. To measure the concentration of calcium, an indicator or reagent may be added to the water sample to form a complex that absorbs light. The absorbance profile of the complex may be non-linear over a range of calcium concentrations. However, the absorbance profile can be linearized to provide calibration coefficients that are subsequently used to determine the concentration of calcium in samples having unknown calcium concentrations. The linearization of the absorbance profile can allow the optical sensor to be calibrated using two solutions. This can reduce the complexity and cost of calibrating the optical sensor, which may otherwise require at least three calibration solutions to capture the non-linear profile of the absorbance curve.
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