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  2. Operating temperature - Wikipedia

    en.wikipedia.org/wiki/Operating_temperature

    An operating temperature is the allowable temperature range of the local ambient environment at which an electrical or mechanical device operates. The device will operate effectively within a specified temperature range which varies based on the device function and application context, and ranges from the minimum operating temperature to the maximum operating temperature (or peak operating ...

  3. Room temperature - Wikipedia

    en.wikipedia.org/wiki/Room_temperature

    Retrieved 4 April 2018. 1.2.3.3 Definition of Room Temperature: According to the United States Pharmacopeia National Forumlary [ sic] (USP-NF), the definition of room temperature is between 15 and 30 °C in the United States. However, in the EU, the room temperature is defined as being 15 to 25 °C, while in Japan, it is defined being 1 to 30 °C.

  4. Optical power meter - Wikipedia

    en.wikipedia.org/wiki/Optical_power_meter

    An optical power meter ( OPM) is a device used to measure the power in an optical signal. The term usually refers to a device for testing average power in fiber optic systems. Other general purpose light power measuring devices are usually called radiometers, photometers, laser power meters (can be photodiode sensors or thermopile laser sensors ...

  5. Heating element - Wikipedia

    en.wikipedia.org/wiki/Heating_element

    A heating element is a device used for conversion of electric energy into heat, consisting of a heating resistor and accessories. [ 1] Heat is generated by the passage of electric current through a resistor through a process known as Joule Heating. Heating elements are used in household appliances, industrial equipment, and scientific ...

  6. Bubble column reactor - Wikipedia

    en.wikipedia.org/wiki/Bubble_column_reactor

    A bubble column reactor is a chemical reactor that belongs to the general class of multiphase reactors, which consists of three main categories: trickle bed reactor (fixed or packed bed), fluidized bed reactor, and bubble column reactor. [ 1] A bubble column reactor is a very simple device consisting of a vertical vessel filled with water with ...

  7. Temperature measurement - Wikipedia

    en.wikipedia.org/wiki/Temperature_measurement

    A medical/clinical thermometer showing the temperature of 38.7 °C (101.7 °F) Temperature measurement (also known as thermometry) describes the process of measuring a current temperature for immediate or later evaluation. Datasets consisting of repeated standardized measurements can be used to assess temperature trends.

  8. Infrared thermometer - Wikipedia

    en.wikipedia.org/wiki/Infrared_thermometer

    Infrared thermometer. An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called black-body radiation emitted by the object being measured. They are sometimes called laser thermometers as a laser is used to help aim the thermometer, or non-contact thermometers or temperature guns ...

  9. Temperature - Wikipedia

    en.wikipedia.org/wiki/Temperature

    Temperature is a physical quantity that quantitatively expresses the attribute of hotness or coldness. Temperature is measured with a thermometer.