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  2. Pyrometer - Wikipedia

    en.wikipedia.org/wiki/Pyrometer

    A pyrometer, or radiation thermometer, is a type of remote sensing thermometer used to measure the temperature of distant objects. Various forms of pyrometers have ...

  3. Disappearing-filament pyrometer - Wikipedia

    en.wikipedia.org/.../Disappearing-filament_pyrometer

    The disappearing-filament pyrometer is an optical pyrometer, in which the temperature of a glowing incandescent object is measured by comparing it to the light of a heated filament. [ 1 ] [ 2 ] [ 3 ] Invented independently in 1901 by Ludwig Holborn and Ferdinand Kurlbaum in Germany and Everett Fleet Morse in the United States, [ 1 ] it was the ...

  4. Brown Instrument Company - Wikipedia

    en.wikipedia.org/wiki/Brown_Instrument_Company

    The company was founded in 1857 in Philadelphia by Edward Brown, inventor of the first pyrometer of American design. [2] In 1934, the firm became a division of Honeywell . The company was a large employer in North Philadelphia during most of the 20th century.

  5. Exhaust gas temperature gauge - Wikipedia

    en.wikipedia.org/wiki/Exhaust_gas_temperature_gauge

    An exhaust gas temperature gauge (EGT gauge or EGT sensor) is a meter used to monitor the exhaust gas temperature of an internal combustion engine in conjunction with a thermocouple-type pyrometer. EGT gauges are found in certain cars and aeroplanes. By monitoring EGT, the driver or pilot can get an idea of the vehicle's air-fuel ratio (AFR).

  6. Thermometer - Wikipedia

    en.wikipedia.org/wiki/Thermometer

    An infrared thermometer is a kind of pyrometer . All objects above absolute zero emit blackbody radiation for which the spectra is directly proportional to the temperature. This property is the basis for a pyrometer or infrared thermometer and thermography. It has the advantage of remote temperature sensing; it does not require contact or even ...

  7. Temperature measurement - Wikipedia

    en.wikipedia.org/wiki/Temperature_measurement

    Pyrometer; Langmuir probes (for electron temperature of a plasma) Infrared thermometer; Other thermometers; One must be careful when measuring temperature to ensure that the measuring instrument (thermometer, thermocouple, etc.) is really the same temperature as the material that is being measured.

  8. 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 ...

  9. Timeline of temperature and pressure measurement technology

    en.wikipedia.org/wiki/Timeline_of_temperature...

    1864 — Henri Becquerel suggests an optical pyrometer; 1866 — Thomas Clifford Allbutt invented a clinical thermometer that produced a body temperature reading in five minutes as opposed to twenty. [14] 1871 — William Siemens describes the Resistance thermometer at the Bakerian Lecture; 1874 — Herbert McLeod invents the McLeod gauge

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