310002730002

Series:	3100
Part Status:	Obsolete
Circuit:	--
Switching Temperature:	--
Reset Temperature:	--
Current Rating - AC:	3A (240V), 7A (30V)
Current Rating - DC:	7A (30V)
Tolerance:	--
Switching Cycles:	5K
Termination Style:	--
Mounting Type:	--
Package / Case:	--

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Introduction

Temperature Sensors, also known as Thermostats or simply Thermometers, are electronic devices that are designed to measure the ambient temperature. They can be used in both residential and industrial applications, and can measure temperatures ranging from -200°C to +900°C. The most common type of temperature sensor is the mechanical type, which works by measuring the expansion or contraction of a metal strip when it changes temperature.

Types of Mechanical Temperature Sensors

There are many different types of mechanical temperature sensors. Some are designed to measure temperature by direct contact, while others are designed to be placed at a distance from the object to be measured. The most common types of mechanical temperature sensors are resistive thermal detector (RTD) and thermistor.

Resistive Thermal Detector (RTD)

A resistive thermal detector (RTD) is a type of mechanical temperature sensor that is made up of a metal coil which is normally made of copper. When the temperature changes, the resistance of the coil changes as well, allowing temperature to be measured. RTDs are accurate and reliable when measuring temperatures in the range of -200°C to +700°C.

Thermistor

A thermistor is a type of temperature sensor that consists of an oxidation-sensitive material in an open circuit. When the temperature changes, the resistance of the circuit changes as well, allowing temperature to be measured. Thermistors are accurate and reliable when measuring temperatures in the range of -50°C to +250°C.

Working Principle of Mechanical Temperature Sensors

The working principle of mechanical temperature sensors is based on the principle of thermal expansion and contraction. When the temperature of a material changes, the material will expand or contract depending on the temperature. This expansion or contraction is used to measure the temperature of the material.The most common type of mechanical temperature sensors are RTDs and thermistors. RTDs measure temperature by measuring the resistance of a metal coil when it changes in temperature. Thermistors measure the resistance of an open circuit when it changes in temperature. In both cases, the temperature is calculated by measuring the amount of expansion or contraction that occurs when the temperature changes.

Applications of Mechanical Temperature Sensors

Mechanical temperature sensors are used in many different applications such as industrial and residential applications. In the industrial field, these types of sensors are commonly used in manufacturing processes as well as in the medical field. In the residential field, these types of sensors are commonly used in thermostats, which allow people to adjust the temperature of a room quickly and accurately.

Conclusion

The working principle and applications of mechanical temperature sensors, such as RTDs and thermistors, should now be clear. As seen, these sensors can be used in both residential and industrial applications. The accuracy of the readings they provide make them essential tools not only in temperature measurement but also in many other applications.

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