AQUATIC TOTAL ALKALINITY MEASUREMENT SYSTEM AND METHOD

    公开(公告)号:US20240345023A1

    公开(公告)日:2024-10-17

    申请号:US18300030

    申请日:2023-04-13

    申请人: PCFR SAS

    摘要: The aquatic total alkalinity measurement system (100) comprises:



    a pH probe (105) configured to measure pH at the boundary layer of a body of water,
    a probe controller (115), configured to sequentially activate and deactivate, or connect and disconnect, the pH probe,
    a pH measurement variation detection device (120), configured to detect a variation of pH measurement in a sequence of pH probe measurements, and
    an aquatic total alkalinity value determination device (125), configured to determine an aquatic total alkalinity value of the body of water as a function of the pH measurement variation detected, and
    preferably a total alkalinity regulation unit, configured to increase or decrease the total alkalinity of the body of water as a function of the measured total alkalinity value and a target total alkalinity value.

    Mitigating impact of ion buildup on pH sensor performance

    公开(公告)号:US11946898B2

    公开(公告)日:2024-04-02

    申请号:US18125801

    申请日:2023-03-24

    IPC分类号: G01N27/416 B08B3/00 B08B13/00

    摘要: A self-vibrating pH probe comprise a housing containing an electronic assembly to which is coupled a vibration source element so that at least a portion of vibrations caused by the vibration source element propagate to the electronic assembly, the vibration source element being controllable for at least on/off operation. The self-vibrating pH probe further comprising a pH probe member having a probe tip at a first end, the probe member extending from the housing and mechanically and electrically coupled by a second end to the electronic assembly so that at least a portion of vibrations propagating to the electronic assembly further propagate to the probe tip; and further including a processor coupled to the electronic assembly for coordinating operation of the vibration source element and operation of the pH probe member.

    PH sensor and reference electrode thereof

    公开(公告)号:US11860117B2

    公开(公告)日:2024-01-02

    申请号:US17652711

    申请日:2022-02-28

    摘要: A pH sensor for detecting a pH of a sample includes a reference electrode and a glass electrode. The reference electrode includes a hollow tubular housing, and at least one water absorbing unit disposed in the housing and including a porous junction member configured to contact the sample, and a water absorbing member disposed on one side of the porous junction member that is opposite to the sample. The water absorbing member is made by soaking a superabsorbent polymer in potassium chloride solution. The glass electrode is inserted into the water absorbing member, and protrudes from the junction member toward the sample.

    pH SENSOR WITH SECONDARY REFERENCE ELECTRODE

    公开(公告)号:US20230314368A1

    公开(公告)日:2023-10-05

    申请号:US17709754

    申请日:2022-03-31

    申请人: Rosemount Inc.

    IPC分类号: G01N27/416 G01K7/16 G01N27/30

    摘要: A pH sensing probe configured to be exposed to a process fluid is provided. The pH sensing probe includes a sensor body and a pH electrode mounted to the sensor body. A primary reference electrode is mounted to the sensor body and has a primary reference junction that is configured to be exposed to the process fluid. A secondary reference electrode is mounted to the sensor body and has a secondary reference junction configured to be exposed to the process fluid. A seal isolates the secondary reference junction from the process fluid until deterioration of the primary reference junction. A pH sensing system and a method of operating a pH sensing system are also provided.

    Mitigating impact of ion buildup on pH sensor performance

    公开(公告)号:US11668673B2

    公开(公告)日:2023-06-06

    申请号:US15729589

    申请日:2017-10-10

    IPC分类号: G01N27/416 B08B13/00

    摘要: A self-vibrating pH probe comprise a housing containing an electronic assembly to which is coupled a vibration source element so that at least a portion of vibrations caused by the vibration source element propagate to the electronic assembly, the vibration source element being controllable for at least on/off operation. The self-vibrating pH probe further comprising a pH probe member having a probe tip at a first end, the probe member extending from the housing and mechanically and electrically coupled by a second end to the electronic assembly so that at least a portion of vibrations propagating to the electronic assembly further propagate to the probe tip; and further including a processor coupled to the electronic assembly for coordinating operation of the vibration source element and operation of the pH probe member.

    SENSOR CALIBRATION DEVICE AND SENSOR CALIBRATION METHOD

    公开(公告)号:US20180259479A1

    公开(公告)日:2018-09-13

    申请号:US15914020

    申请日:2018-03-07

    IPC分类号: G01N27/416

    摘要: A sensor calibration device for calibrating a sensor device, includes a sensor reader configured to read, from a reference sensor, a physical quantity which is a reference of a calibration and detected by the reference sensor, and a sensor manager configured to convert the physical quantity read by the sensor reader into a reference measurement value, the sensor manager being configured to obtain a calibration target measurement value obtained by the sensor device measuring the physical quantity, and the sensor manager being configured to output, to the sensor device, a calibration instruction based on the reference measurement value and the calibration target measurement value.