Ad
related to: bimetallic strips in thermostats
Search results
Results From The WOW.Com Content Network
Diagram of a bimetallic strip showing how the difference in thermal expansion in the two metals leads to a much larger sideways displacement of the strip A bimetallic coil from a thermostat reacts to the heat from a lighter, by uncoiling and then coiling back up when the lighter is removed.
Mechanical thermostats commonly use bimetallic strips, converting a temperature change into mechanical displacement, to actuate control of the heating or cooling sources. Electronic thermostats, instead, use a thermistor or other semiconductor sensor, processing temperature change as electronic signals, to control the heating or cooling equipment.
A bimetal bar is usually made of brass and iron. Shows the principle of non-heated (left) and heated (right) bimetal. Bimetallic strips and disks, which convert a temperature change into mechanical displacement, [1] are the most recognized bimetallic objects due to their name. However, there are other common bimetallic objects.
Sometimes, special circuits are built for the purpose of sensing and controlling the temperature or voltage status. Devices such as thermistors, voltage-dependent resistors, thermostats and sensors such as infrared thermometers are used to modify the current upon different conditions such as circuit-temperature and input voltage.
Energy regulator of an electric stove with a glass-ceramic hob. 1: Electric contacts (here closed); 2: Bimetal; 3: Heater for Bimetal. 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 ...
The integrated circuit sensor may come in a variety of interfaces — analogue or digital; for digital, these could be Serial Peripheral Interface, SMBus/I 2 C or 1-Wire.. In OpenBSD, many of the I 2 C temperature sensors from the below list have been supported and are accessible through the generalised hardware sensors framework [3] since OpenBSD 3.9 (2006), [4] [5]: §6.1 which has also ...
bimetallic strip A temperature sensing element made of two metals that have different coefficients of expansion intimately bonded together. Biot–Savart law The mathematical relationship between a magnetic field and the current producing that field. bipolar junction transistor A type of transistor with two kinds of charge carriers. blocked ...
Some 240V bimetallic thermostats have 3 wires, live (in), neutral (in), and control (out). They also have a resistor (typically 220 kOhm) between the wall (high thermal inertia) and the bimetallic strip, which is turned on by the thermostat, and dissipates about 1/4 Watt. The purpose of this is to reduce hysteresis.