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    • 3. 发明授权
    • Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection
    • 非侵入式热分散流量计,带有用于流体泄漏检测的计时监视器
    • US09146172B2
    • 2015-09-29
    • US13342961
    • 2012-01-03
    • Robert Trescott
    • Robert Trescott
    • F16K31/02G01M3/28G01M3/00
    • E03B7/003E03B7/072G01K7/22G01K13/02G01K2013/026G01M3/002G01M3/2807Y10T137/7761
    • A non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection includes a heater, an ambient temperature sensor and a flow rate sensor which are configured to sense the temperature of a fluid in a conduit, and then monitor the flow of that fluid through the conduit. The fluid flow sensor is incorporated into a Wheatstone bridge circuit which is used to provide increased sensitivity to the outputs of the sensors. Based upon the ambient temperature sensor readings, the flow rate sensor and heater may be adjusted to optimize the operation of the system to detect leaks. An alternative embodiment utilizes a single sensor and separate heater which work together to determine heat propagation times which in turn is used to calculate flow rate.
    • 具有用于流体泄漏检测的计时监视器的非侵入式热分散流量计包括加热器,环境温度传感器和流量传感器,其被配置为感测导管中的流体的温度,然后监测该流体的流动 通过导管。 流体流量传感器被结合到惠斯通电桥电路中,该电路用于对传感器的输出提供增加的灵敏度。 基于环境温度传感器读数,可以调节流量传感器和加热器以优化系统的操作以检测泄漏。 一个替代实施例使用单个传感器和单独的加热器,其一起工作以确定热传播时间,其又被用于计算流量。