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  2. Flow measurement - Wikipedia

    en.wikipedia.org/wiki/Flow_measurement

    Magnets in the paddle spin past the sensor. The electrical pulses produced are proportional to the rate of flow. Paddle wheel flowmeters (also known as Pelton wheel sensors) consist of three primary components: the paddle wheel sensor, the pipe fitting and the display/controller. The paddle wheel sensor consists of a freely rotating wheel ...

  3. Volumetric flow rate - Wikipedia

    en.wikipedia.org/wiki/Volumetric_flow_rate

    Volumetric flow rate should not be confused with volumetric flux, as defined by Darcy's law and represented by the symbol q, with units of m 3 /(m 2 ·s), that is, m·s −1. The integration of a flux over an area gives the volumetric flow rate. The SI unit is cubic metres per second (m 3 /s). Another unit used is standard cubic centimetres per ...

  4. Cubic metre per second - Wikipedia

    en.wikipedia.org/wiki/Cubic_metre_per_second

    Cubic metre per second or cubic meter per second in American English (symbol m 3s −1 or m 3 /s) is the unit of volumetric flow rate in the International System of Units (SI). It corresponds to the exchange or movement of the volume of a cube with sides of one metre (39.37 in) in length (a cubic meter , originally a stere ) each second .

  5. Ultrasonic flow meter - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_flow_meter

    Schematic view of a flow sensor. An ultrasonic flow meter is a type of flow meter that measures the velocity of a fluid with ultrasound to calculate volume flow. Using ultrasonic transducers, the flow meter can measure the average velocity along the path of an emitted beam of ultrasound, by averaging the difference in measured transit time between the pulses of ultrasound propagating into and ...

  6. Water detector - Wikipedia

    en.wikipedia.org/wiki/Water_detector

    A water detector is an electronic device that is designed to detect the presence of water for purposes such as to provide an alert in time to allow the prevention of water leakage. A common design is a small cable or device that lies flat on a floor and relies on the electrical conductivity of water to decrease the resistance across two contacts.

  7. Air flow meter - Wikipedia

    en.wikipedia.org/wiki/Air_flow_meter

    Typically, mass air flow measurements are expressed in the units of kilograms per second (kg/s) or feet per minute (fpm), which can be converted to volume measurements of cubic metres per second (cumecs) [1] or cubic feet per minute (cfm). [2]