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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 ...
Solid-state relay. A solid state relay (SSR) is an electronic switching device that switches on or off when an external voltage (AC or DC) is applied across its control terminals. They serve the same function as an electromechanical relay, but solid-state electronics contain no moving parts and have a longer operational lifetime.
Control loop feedback mechanism. A proportional–integral–derivative controller(PID controlleror three-term controller) is a feedback-based control loopmechanism commonly used to manage machines and processes that require continuous control and automatic adjustment.
A thermostat can often be the main control unit for a heating or cooling system, in applications ranging from ambient air control to automotive coolant control. Thermostats are used in any device or system that heats or cools to a setpoint temperature. Examples include building heating, central heating, and air conditioners, kitchen equipment ...
Thermo-control systems are often used to regulate light cycles and heating, as well as humidity (coupled to built-in misting or rain systems). Light-dependent resistors or photo-diodes connected to the lighting are frequently used to simulate daytime, evening and nighttime light cycles, as well as timers to switch lighting and heating on and ...
DCS. SCADA. v. t. e. A programmable logic controller (PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, machines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis.
A marine aquarium is an aquarium that keeps marine plants and animals in a contained environment. Marine aquaria are further subdivided by hobbyists into fish only (FO), fish only with live rock (FOWLR), and reef aquaria. Fish only tanks often showcase large or aggressive marine fish species and generally rely on mechanical and chemical filtration.
September 11, 2024 at 6:24 PM. Caitlin Clark scored 16 points, but the favorite to win Rookie of the Year couldn’t lead her team to a win as the Indiana Fever dropped an 86-75 decision to the ...
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