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  2. TDR moisture sensor - Wikipedia

    en.wikipedia.org/wiki/TDR_moisture_sensor

    A TDR waveguide with exposed wires. In the waveform analysis a sensor (usually a probe) is placed in the material to be tested. The sensor contains a waveguide consisting of two, three, or more parallel wires which is connected via a coaxial cable to a voltage pulse generator which sends precisely defined voltage pulses into the sensor.

  3. Moisture meter - Wikipedia

    en.wikipedia.org/wiki/Moisture_meter

    Measuring water leakage in exterior wall with Trotec T660 Moisture Measuring Device, using dielectric measurement method (indicative). Moisture meters are measuring instruments used to measure the percentage of water in a given substance, as physical properties are strongly affected by moisture content and high moisture content for a period of time may progressively degrade a material.

  4. Water detector - Wikipedia

    en.wikipedia.org/wiki/Water_detector

    Water leak detection is an expression more commonly used for larger, integrated systems installed in modern buildings or those containing valuable artifacts, materials or other critical assets where early notification of a potentially damaging leak would be beneficial.

  5. Water audit - Wikipedia

    en.wikipedia.org/wiki/Water_Audit

    The cost of conducting a basic audit with "top down" approach would be between $84 and $133 to purchase the AWWA's M36 manual. There is no cost to use the AWWA's free water audit online software. The audit guidelines or methodology with worksheets can also be attained for free through various local government websites.

  6. Leak detection - Wikipedia

    en.wikipedia.org/wiki/Leak_detection

    The most common leak detection method for pipeline operators is called the Supervisory Control And Data Acquisition (SCADA) system. This system uses a series of sensors to track data such as pressure, flow rates, temperature, and whether valves are open or closed.

  7. Electrical liner integrity survey - Wikipedia

    en.wikipedia.org/wiki/Electrical_liner_integrity...

    The ammeter registers an increase in current in the presence of a leak, resulting in an audible tone and visual increase in the current level. The expected minimum sensitivity of the water-based bare geomembrane liner integrity methods is a one millimeter diameter circular leak. For the arc testing method, water is not required.

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