A thermistor is "a thermally sensitive resistor" that is a
semiconductor whose resistance varies significantly with
temperature. In general, there are two types thermal senstive
resistor. One is PTC ( Postive Temperature Coefficient); the
resistance increases as temperature increases. The other is NTC
(Negative Temperature Coefficient); the resistance decreases as
temperature increases. The following description is applicable only
to NTC thermistors.
NTC thermistor is an sensitive elements widely used in information
system and control system, which is mainly used for temperature
measurements, control, protection and heating. Thermistors are
thermally sensitive elements of sintered fine ceramic semiconductor
composed of several transition metal oxides, primarily Mn, Co and
Ni. Their operating temperature range is from -50°C to +1000°C that
covers the whole range necessary for ordinary temperature control.
They are also small, stable and have great sensitivity. Thanks to
these features, they are used in large quantities as temperature
sensors and temperature compensation elements in consumer
electronic appliances and industrial equipment.
Cooker: Electric stove, Toaster, Rice cooker, Induction cooker, heatig
iron, Bread oven, Electric pan, Cofee maker, Gas stove.
Heating &Cooling: Air-conditioning, Heaters, Warm bed, Electric carpets, Electric
Home Applianance: Water heaters, Boilers, Warm water bidet, Refrigerator, Washing
machine, Room dryer, Bathtub, Washtand, Solar systems, Waste
disposal machine, Solar heater.
Other Sets: Thermometers, Electric iron, Hair dryer, Hair coloring device,
OA Set: Copier, Fax Machine, Inkjet printer, LCD printer, Laser printer,
Matrix printer, Watches, Camera.
Automobile: Intake air temperature, Exhasust temperature, Cooling water
temperature, Engine temperature, Transmission temperature, Auto air
conditioning (interior / exterior / surrounding), Body (thin plate)
Agriculture: Greehouse cultivation, Germination machine, Tobacco dryer, baking
utensils, Granary temperature regulation, Soil, fertilizer.
Industry: Industrial measuring instruments, Ice maker, developer thermostat,
oil temperature, warmer, food processing machines, Oil bath.
Fishing: Temperature control, water temperature measurement, Sonar, seaweed
Commercial: Refigerated display racks, vending machine, snow equipment, wine
filling machine, ash recycling machine, cold car, battery charger,
Medical: Skin surface temperature measurements, rectal, Raynaud's disease
diagnosis, incubators, infusion heater, dental amalgam insylation
Physical / Chemical Research: Temperature measuring, weather observation detectors, surface
temperature measurement, reversing (guide) detection devices,
satellites, geothermal temperature measurements, atmosphere
Other temperature sensors