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  2. Infrared thermometer - Wikipedia

    en.wikipedia.org/wiki/Infrared_thermometer

    The most common infrared thermometer is the spot infrared pyrometer or infrared pyrometer, which measures the temperature at a spot on a surface (actually a relatively small area determined by the D:S ratio). These usually project a visible red dot onto the center of the area being measured that identifies the spot being measured, but plays no ...

  3. Level sensor - Wikipedia

    en.wikipedia.org/wiki/Level_sensor

    Ultrasonic level sensor used in a water treatment plant. Ultrasonic level sensors are used for non-contact level sensing of highly viscous liquids, as well as bulk solids. They are also widely used in water treatment applications for pump control and open channel flow measurement.

  4. Thermometer - Wikipedia

    en.wikipedia.org/wiki/Thermometer

    A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical value (e.g. the visible scale that is marked on a mercury ...

  5. These Infrared Thermometers Can Check Temperatures Without ...

    www.aol.com/infrared-thermometers-check...

    Mobi Non-Contact Forehead Thermometer. Price: $45 from Walmart Buy It This infrared thermometer is a top seller at Walmart, and most buyers give it positive marks (including some business owners ...

  6. Active thermography - Wikipedia

    en.wikipedia.org/wiki/Infrared_non-destructive...

    This principle can be used also for non-contact [1] infrared non-destructive testing (IRNDT) of materials. [2] The IRNDT method is based on an excitation of a tested material by an external source, which brings some energy to the material. Halogen lamps, flash-lamps, ultrasonic horn or other sources can be used as the excitation source for the ...

  7. List of sensors - Wikipedia

    en.wikipedia.org/wiki/List_of_sensors

    Fuel level sensor; Fuel pressure sensor ... Heat flux sensor; Infrared thermometer; ... Proximity sensor; Passive infrared sensor; Reed switch; Stud finder ...

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