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Introduction

A temperature sensor is a device that gathers data concerning the temperature from a source and converts it to a form that can be understood either by an observer or anther device. It measures the temperature of a medium. The sensors are used for different purposes from the simple home use to extremely accurate and precise scientific use.

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Even human and most animals  have biological temperature sensors in their body which works as the same function as the artificial does. It collects data and transfers it into a understandable form. For eg, human sensory nerves sends sensory information from the skin to the brain in the form of electrical impulses. 

Types

Types: Temperature Sensors measure the amount of heat that produces from the object. It detects the changes of the temperature either as output of analog or digital. The temperature consists of two basic types of features:

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        The thermistor can be placed anywhere in the bridge with three constant resistors, but different placements can produce different behaviour in the bridge.  For example, different placements might cause the output voltage to go in different directions as the temperature changes.

References

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http://www.electronics-tutorials.ws/io/io_3.html

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