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  2. Resistance thermometer - Wikipedia

    en.wikipedia.org/wiki/Resistance_thermometer

    Resistance thermometers, also called resistance temperature detectors (RTDs), are sensors used to measure temperature. Many RTD elements consist of a length of fine wire wrapped around a heat-resistant ceramic or glass core but other constructions are also used.

  3. Resonant-tunneling diode - Wikipedia

    en.wikipedia.org/wiki/Resonant-tunneling_diode

    A resonant-tunneling diode (RTD) is a diode with a resonant-tunneling structure in which electrons can tunnel through some resonant states at certain energy levels. The current–voltage characteristic often exhibits negative differential resistance regions.

  4. Real Time Digital Simulator - Wikipedia

    en.wikipedia.org/wiki/Real_Time_Digital_Simulator

    Real Time Digital Simulator or RTDS as the abbreviation recommended by IEEE committee on real-time simulator applied for power systems provides power systems simulation technology for fast, reliable, accurate, and cost-effective study of power systems [citation needed] with complex High Voltage Alternating Current (HVAC) and High Voltage Direct Current (HVDC) networks.

  5. Four-terminal sensing - Wikipedia

    en.wikipedia.org/wiki/Four-terminal_sensing

    Four-point measurement of resistance between voltage sense connections 2 and 3. Current is supplied via force connections 1 and 4. In electrical engineering, four-terminal sensing (4T sensing), 4-wire sensing, or 4-point probes method is an electrical impedance measuring technique that uses separate pairs of current-carrying and voltage-sensing electrodes to make more accurate measurements ...

  6. Thermistor - Wikipedia

    en.wikipedia.org/wiki/Thermistor

    Thermistors differ from resistance temperature detectors (RTDs) in that the material used in a thermistor is generally a ceramic or polymer, while RTDs use pure metals. The temperature response is also different; RTDs are useful over larger temperature ranges, while thermistors typically achieve a greater precision within a limited temperature ...

  7. Callendar–Van Dusen equation - Wikipedia

    en.wikipedia.org/wiki/Callendar–Van_Dusen_equation

    The Callendar–Van Dusen equation is an equation that describes the relationship between resistance (R) and temperature (T) of platinum resistance thermometers (RTD).. As commonly used for commercial applications of RTD thermometers, the relationship between resistance and temperature is given by the following equations.

  8. PragmaDev Studio - Wikipedia

    en.wikipedia.org/wiki/PragmaDev_Studio

    PragmaDev Studio is a modeling and testing software tool introduced by PragmaDev in 2002 dedicated to the specification of communicating systems. [1] It was initially called Real Time Developer Studio or RTDS. [1]

  9. RTD - Wikipedia

    en.wikipedia.org/wiki/RTD

    Real-time data; Residence time distribution; Resonant-tunneling diode; Round-trip delay time, in telecommunications; Research and development, Research and Technical (or Technological) Development