Temperature sensor
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Mechanical temperature sensors

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Thermometer A thermometer is a device that measures temperature or a temperature gradient (the degree of hotness or coldness of an object). A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer ...
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Therm The therm (symbol, thm) is a non- SI unit of heat energy equal to 100,000 British thermal units (BTU), and approximately megajoules, kilowatt-hours, kilocalories and thermies. One therm is the energy content of approximately of natural gas a ...


Electrical temperature sensors

* Thermistor- Thermistors are thermally sensitive resistors whose prime function is to exhibit a large, predictable and precise change in electrical resistance when subjected to a corresponding change in body temperature. Negative Temperature Coefficient (NTC) thermistors exhibit a decrease in electrical resistance when subjected to an increase in body temperature and Positive Temperature Coefficient (PTC) thermistors exhibit an increase in electrical resistance when subjected to an increase in body temperature. * Thermocouple * Resistance thermometer * Silicon bandgap temperature sensor


Integrated circuit sensors

The integrated circuit sensors may come in a variety of interfaces — analogue or digital; for digital, these could be
Serial Peripheral Interface The Serial Peripheral Interface (SPI) is a synchronous serial communication interface specification used for short-distance communication, primarily in embedded systems. The interface was developed by Motorola in the mid-1980s and has become a ...
, SMBus/ I2C or
1-Wire 1-Wire is a device communications bus system designed by Dallas Semiconductor Corp. that provides low-speed (16.3 kbit/s) data, signaling, and power over a single conductor. 1-Wire is similar in concept to I²C, but with lower data rates and ...
. In OpenBSD, many of the I2C temperature sensors from the below list have been supported and are accessible through the generalised hardware sensors framework since OpenBSD 3.9 (2006), which has also included an ad-hoc method of automatically scanning the I2C bus by default during system boot since 2006 as well. In NetBSD, many of these I2C sensors are also supported and are accessible through the envsys framework, although none are enabled by default outside of Open Firmware architectures like macppc, and a manual configuration is required before first use on i386 or amd64. Remote uncooled IR thermal radiometer sensors are also commonly used in integrated circuits.


List

Non-exhaustive list of products classified by manufacturer. ;Legend * Manufacturer : IC Manufacturer * Part Number : IC Part Number * Output Type : We can find 3 different Output types : Analog, Digital and Switch * Designation : IC Designation * Temperature Range : Die temperature range where the IC can operate. * Accuracy (Typical) : Typical IC accuracy * Accuracy (Max) : Maximum IC accuracy * Linear Temperature Slope : Linear temperature slope (available for Analog output ICs). Generally expressed in μA/°C or mV/°C Units * Input Voltage Range : Input voltage range where the IC can operate * Supply Current : IC supply current * Output Voltage Range : Output voltage range (available for some Analog output ICs). It generally depends on the temperature range and the linear temperature slope values. * Package : IC package(s) Availability * Datasheet : Manufacturer's datasheet link ;Table Contents are extract from the manufacturer datasheet. Each manufacturer may have different method with different accuracy processes, so it can be difficult to compare these self-reported values directly.


See also

* Celsius, Fahrenheit,
Kelvin The kelvin, symbol K, is the primary unit of temperature in the International System of Units (SI), used alongside its prefixed forms and the degree Celsius. It is named after the Belfast-born and University of Glasgow-based engineer and ...
* Conversion of units of temperature *
List of LM-series integrated circuits The following is a list of LM-series integrated circuits. Many were among the first analog integrated circuits commercially produced since late 1965; some were groundbreaking innovations. As of 2007, many are still being used. The LM series orig ...


References

{{Reflist Sensors Temperature sensors