What is a thermostat?
Q: What is a thermostat?
A: A thermostat is a sensor or control system that keeps a heating or cooling device near a desired temperature or setpoint.
Q: How does a thermostat work?
A: A thermostat works by switching heating or cooling devices on or off to maintain the set temperature. In some systems, it switches a heat transfer fluid on or off as needed.
Q: What is the origin of the name thermostat?
A: The name thermostat is derived from the Greek words thermos "hot" and statos "a standing."
Q: What is the simplest kind of thermostat?
A: The simplest kind of thermostat is a bimetal strip that bends as the temperature rises, and at a set point, breaks the circuit of an electrical current.
Q: What kind of devices use a bimetal strip as a thermostat?
A: Kitchen toasters use a bimetal strip as a thermostat.
Q: What do thermostats control?
A: Thermostats control a system and are examples of feedback devices that maintain a steady local environment against temperature changes outside the system.
Q: What is the thermostat an example of in cybernetics?
A: In cybernetics, the thermostat is an example of a machine that uses feedback to maintain the stability of a heating system.
