Crossword clues for thermistor
Wiktionary
n. a resistor whose resistance varies rapidly and predictably with temperature and as a result can be used to measure temperature.
WordNet
n. a semiconductor device made of materials whose resistance varies as a function of temperature; can be used to compensate for temperature variation in other components of a circuit [syn: thermal resistor]
Wikipedia
A thermistor is a type of resistor whose resistance is dependent on temperature, more so than in standard resistors. The word is a portmanteau of thermal and resistor. Thermistors are widely used as inrush current limiter, temperature sensors (Negative Temperature Coefficient or NTC type typically), self-resetting overcurrent protectors, and self-regulating heating elements. (Positive Temperature Coefficient or PTC type typically).
Thermistors are of two opposite fundamental types:
- With NTC, resistance Decreases with temperature to protect against inrush overvoltage conditions. Installed parallel in a circuit.
- With PTC, resistance Increases with temperature to protect against overcurrent conditions. Installed series in a circuit.
Thermistors differ from resistance temperature detectors (RTDs) in that the material used in a thermistor is generally a ceramic or polymer, while RTDs use pure metals. The temperature response is also different; RTDs are useful over larger temperature ranges, while thermistors typically achieve a greater precision within a limited temperature range, typically −90°C to 130°C.
Usage examples of "thermistor".
Pyramids understood: wires, relays, generators, electron tubes, transistors, thermistors, spacistors, transformers and whatever depended utterly on them.
It uses a plastic rocket vehicle with a miniaturized radio transmitter in its nose, a bead thermistor to measure air temperature, and a modularized factory-loaded solid-propellant rocket motor made by Flight Systems, Inc.
The LARS radio telemetry transmitter is completely enclosed in the nose section of the vehicle with only the thermistor bead sticking out into the airstream from the nose tip.
The nose thermistor busily converts temperature to an electrical voltage which modulates the transmitter which squirts the signal back to the suitcase ground system on the 403 mHz.
LARS radio telemetry transmitter is completely enclosed in the nose section of the vehicle with only the thermistor bead sticking out into the airstream from the nose tip.
I wiggle my toes as hard as I can-despite vacuum insulation, thermistor environmental control and loose, fluffy socks, I think my feet are beginning to get cold.
But a system that consists of a few crystals, thermistors, or other simple elements, can be destroyed without serious effects, because it will be replaced immediately by one of a billion similar systems.
Pyramids understood: wires, relays, generators, electron tubes, transistors, thermistors, spacistors, transformers and whatever depended utterly on them.