There are many different thermometers for many applications—the common mercury thermometer is used for measuring to within a degree, the thermocouple is used to electrically measure temperatures within a very wide range, and the pyrometer is used...

A semiconductor in which electrical resistance is inversely correlated to temperature, i.e. the greater the temperature the less the electrical resistance. This capacity is employed in using thermistors as temperature sensors, their small size making...

A thermistor is a type of resistor used to measure temperature changes, relying on the change in its resistance with changing temperature. The word is a combination of thermal and resistor. Samuel Ruben invented the thermistor in 1930, and was awarded...

By Jon Titus, Contributing Writer Thermocouples measure temperatures over a broad range and at high temperatures. But when a task calls for precision measurements over a smaller, lower temperature range, somewhere from about -80 to 300C, thermistors do the trick. And because...

Thermistors are thermally sensitive resistors. Several semi-conducting oxide ceramics exhibit large changes in resistivity ([sim]100 to 1000 ohm-cm) over a temperature span of [sim]100[degrees]C. In most such materials, the resistance falls as temperature increases. Consequently, they are known as negative temperature coefficient (NTC)...