with full details PLEASE
2006-12-22 12:25:57 · 12 answers · asked by George 3 in Science & Mathematics ➔ Physics
I think you mean thermistor. A thermistor is semiconductor device with a resistance that is very sensitive to temperature, resistance decreasing as the temperature increases.
2006-12-22 12:32:34 · answer #1 · answered by cheasy123 3 · 0⤊ 0⤋
Another use for a thermistor is underwater, but again, to measure temperature. A "Thermistor chain" can be dangled in the water to measure the temperature of the water from the surface to a depth below the bottom of the thermocline (where the water stops changing temperature). The fascinating thing about this is that knowing the temperature of the water allows you to know the speed of sound in water, which can help you understand how marine mammals like whales and dolphins communicate, and also how to hunt for submarines listening to the noise they make.
2006-12-22 12:34:44 · answer #2 · answered by firefly 6 · 0⤊ 0⤋
Basicaly a thermister is a heat dependant resistor.
ie a resistor whoes resistance changes proportionaly
with its temperature.
Two types exist
1. Resistance increases as temperature increases
2. Resistance decreases as temperature increases
Sorry but full details would take ages
Look at manufacturers data sheets
The most common application is a thermostat.
RS catalogue is a very good reference
2006-12-22 12:49:15 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I think you mean a thermistor, used for temperature measurement. I have found these on Combi boilers. They were small screw in electronic sensors. they were located in the domestic hot water flow pipework and in the central heating pipework, within the boiler housing. They can be tested by applying a meter to the terminal and inserting the thermistor in hot water. The resistance changes according to the temperature of the water.
2006-12-22 19:08:21 · answer #4 · answered by Daddybear 7 · 0⤊ 0⤋
It is a solid state device and its main purpose is to sense and report temperature to some sort of processor. I dealt with them in many cases in the electronics equipment that is used to make wafers in a manufacturing devices. There are other devices that can do this such as Jk thermocouples, which respond faster but are less accurate, and less repeatable. Thermistors will stay calibrated better, their down side is that they don't have an immediate response time, if you needed that, they wouldn't be selected.
2006-12-22 12:33:24 · answer #5 · answered by Robert D 4 · 0⤊ 0⤋
A thermistor is an electronic device which is similar to a 'thermostat'(in function).A thermistor works in accordance to 'resistance(ohms) compared to temperature(*C).----- The higher the 'temp.' the lower the 'resistance'.
This days the uses are in air-conditioning systems. i.e. Room - temp. thermistor, which measures the air temp.leaving or entering the indoor unit.
Indoor unit 'pipe thermistor',which senses the temp. of the pipes
of the indoor heat-exchanger.
Also,an outdoor unit thermistor is located in the 'outdoor' unit.
2006-12-22 13:42:10 · answer #6 · answered by JoJo 1 · 0⤊ 0⤋
Here is the link to wikipedia for the thermistor, it has load of details and scientific equations explaining how it works, should keep you happy for hours.
http://en.wikipedia.org/wiki/Thermistor
2006-12-22 12:33:23 · answer #7 · answered by colin.christie 3 · 0⤊ 0⤋
It is a resistance that changes with temperature. It is used for thermometer applications- to change current flow with temperature.
2006-12-22 17:01:24 · answer #8 · answered by Anonymous · 0⤊ 0⤋
measures heat,usually attached to a hot water tank.
2006-12-22 12:35:03 · answer #9 · answered by Alfred E. Newman 6 · 0⤊ 0⤋
its used to measure temperature, usually in electronics. try wikipedia or google.
2006-12-22 12:30:32 · answer #10 · answered by Critical Mass 4 · 1⤊ 0⤋