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2. 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.

3. 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 ...

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. Control system - Wikipedia

   en.wikipedia.org/wiki/Control_system

   On–off control uses a feedback controller that switches abruptly between two states. A simple bi-metallic domestic thermostat can be described as an on-off controller. When the temperature in the room (PV) goes below the user setting (SP), the heater is switched on. Another example is a pressure switch on an air compressor.

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

7. Bears fire OC Shane Waldron; passing coordinator Thomas Brown ...

   www.aol.com/sports/bears-reportedly-fire-oc...

   The Chicago Bears have finally made a change after this weekend's awful 19-3 loss to the New England Patriots. The Bears announced Tuesday morning that offensive coordinator Shane Waldron is out ...

8. 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.

9. Infinite switch - Wikipedia

   en.wikipedia.org/wiki/Infinite_switch

   An infinite switch, simmerstat, energy regulator or infinite controller is a type of switch that allows variable power output of a heating element of an electric stove. It is called "infinite" because its average output is infinitely variable rather than being limited to a few switched levels.