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  2. Bang–bang control - Wikipedia

    en.wikipedia.org/wiki/Bang–bang_control

    In control theory, a bang–bang controller (hysteresis, 2 step or on–off controller), is a feedback controller that switches abruptly between two states. These controllers may be realized in terms of any element that provides hysteresis. They are often used to control a plant that accepts a binary input, for example a furnace that is either ...

  3. Induction heater - Wikipedia

    en.wikipedia.org/wiki/Induction_heater

    Induction heating is a non contact method of heating a conductive body by utilising a strong magnetic field.Supply (mains) frequency 50 Hz or 60 Hz induction heaters incorporate a coil directly fed from the electricity supply, typically for lower power industrial applications where lower surface temperatures are required.

  4. Sail switch - Wikipedia

    en.wikipedia.org/wiki/Sail_switch

    A sail switch, vane switch or flow switch is a mechanical switch that is actuated on or off in response to the flow or non-flow of a fluid such as air or water. [1] A sail switch typically operates through the use of a paddle or a diaphragm which gets displaced due to the force of fluid or air moving past it.

  5. Piping and instrumentation diagram - Wikipedia

    en.wikipedia.org/wiki/Piping_and_instrumentation...

    Actuator, driver or unclassified final control element For reference designation of any equipment in industrial systems the standard IEC 61346 ( Industrial systems, installations and equipment and industrial products — Structuring principles and reference designations ) can be applied.

  6. Fan heater - Wikipedia

    en.wikipedia.org/wiki/Fan_heater

    The heat (wattage) selector switch is at the top right. The switch at the bottom is a normally open switch that serves as a "tipover switch" safety device: as long as the heater is standing upright, the switch is engaged and the circuit is closed. The grip for the power cord is at the bottom right. Overheat cutouts

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    Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.

  8. 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 .

  9. IN THE UNITED STATES DISTRICT COURT FOR THE NORTHERN DISTRICT ...

    images.huffingtonpost.com/2011-08-05-Joliet...

    2 the City’s actions will force hundreds of African-American families out of their housing, leaving many with nowhere in the City to live. The City’s actions have the purpose and effect

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