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  2. Thermopile - Wikipedia

    en.wikipedia.org/wiki/Thermopile

    Thermocouples can be connected in series as thermocouple pairs with a junction located on either side of a thermal resistance layer. The output from the thermocouple pair will be a voltage directly proportional to the temperature difference across the thermal resistance layer and also to the heat flux through the thermal resistance layer.

  3. Thermocouple - Wikipedia

    en.wikipedia.org/wiki/Thermocouple

    A thermocouple, also known as a "thermoelectrical thermometer", is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction.A thermocouple produces a temperature-dependent voltage as a result of the Seebeck effect, and this voltage can be interpreted to measure temperature.

  4. Gardon gauge - Wikipedia

    en.wikipedia.org/wiki/Gardon_gauge

    While heat flux sensors can be made according to various designs, the sensor of a Gardon gauge consists of a foil connected to the sensor body at its external radius, and connected to a thin wire at the center, named after its originator Robert Gardon. [1] The foil center and side are the hot- and cold joint of a thermocouple respectively. When ...

  5. Heat flux sensor - Wikipedia

    en.wikipedia.org/wiki/Heat_flux_sensor

    Heat flux sensors can be used like this to determine the R-value or U-value of building envelope materials while they are still installed in buildings. A heat flux sensor is a transducer that generates an electrical signal proportional to the total heat rate applied to the surface of the sensor.

  6. Pirani gauge - Wikipedia

    en.wikipedia.org/wiki/Pirani_gauge

    A special form of the Pirani gauge is the pulsed Pirani vacuum gauge where the sensor wire is not operated at a constant temperature, but is cyclically heated up to a certain temperature threshold by an increasing voltage ramp. When the threshold is reached, the heating voltage is switched off and the sensor cools down again.

  7. File:Thermocouple circuit Ktype including voltmeter ...

    en.wikipedia.org/wiki/File:Thermocouple_circuit...

    English: Circuit diagram for K-type thermocouple, including all three block temperatures. Date: ... This diagram was created with an unknown SVG tool.

  8. Thermopile laser sensor - Wikipedia

    en.wikipedia.org/wiki/Thermopile_laser_sensor

    Figure 2: [8] Working principle of a thermal laser sensor (Adapted from figure 3 with permission) As shown in Fig 2, a thermopile laser sensor consists of several thermocouples connected in series with one junction type (hot junction at temperature T 1) being exposed to an absorption area and the other junction type (cold junction at temperature T 2) being exposed to a heat sink.

  9. Thermostat - Wikipedia

    en.wikipedia.org/wiki/Thermostat

    Start draft inducer fan/blower (if the furnace is relatively recent) to create a column of air flowing up the chimney; Heat ignitor or start spark-ignition system; Open gas valve to ignite main burners; Wait (if furnace is relatively recent) until the heat exchanger is at proper operating temperature before starting main blower fan or ...