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NTC thermistors, or Negative Temperature Coefficinet (NTC) thermistors are temperature sensors that measure negative temperature changes. They are widely used in various applications and industries, with their popularity due to their accuracy, reliability, and durability. In this article, we\'ll discuss the application fields, working principle, and other properties of NTC thermistors.

Applications and Industries

NTC thermistors can be used in a variety of different applications and industries, some of the most popular including:

• Consumer electronics: NTC thermistors are used in temperature sensing systems in many consumer electronics, including laptops, tablets, cell phones, TVs, and more.
• Industrial: NTC thermistors are commonly used in industrial applications, including in the automobile, aerospace, mining, and power industries.
• Medical: This type of thermistor is used in many medical applications, such as temperature sensing and monitoring in syringes, thermometers, and incubators.

NTC thermistors can be found in many other industries and applications as well, making them a versatile tool for temperature sensing and control.

Working Principle

The working principle of NTC thermistors is fairly simple. When temperatures drops, the resistance of the thermistor decreases, making it more sensitive to temperature changes. Conversely, as temperatures increase, the resistance increases, making it less sensitive to temperature changes. This change in resistance is what makes NTC thermistors ideal for temperature sensing and control.

NTC thermistors are made up of two types of materials, the base material and the thermistor material itself. The base material is typically ceramic, while the thermistor material, which is the active part that responds to temperature changes, can be either a metal alloy or a polymeric material. The base material acts as a insulator, which helps to keep the thermistor material and the body of the thermistor at the same temperature.

The change in resistance in the thermistor material is caused by changes in thermal energy. At higher temperatures, the thermal energy is higher, causing the resistance of the thermistor material to increase. At lower temperatures, the thermal energy decreases and the resistance decreases.

Other Properties

NTC thermistors have several other beneficial properties that make them useful for temperature sensing and control. The first is high precision. NTC thermistors are highly accurate, allowing them to sense temperature changes with a high degree of accuracy. They also have a long-term stability, meaning they can maintain their accuracy and functioning for long periods of time.

NTC thermistors are also resistant to shock and vibration. This makes them ideal for use in environments that are subjected to extreme vibrations, shock, and other sources of disruption. Additionally, they have a wide temperature range, allowing them to be used in a variety of different applications.

Finally, NTC thermistors are relatively inexpensive compared to other temperature sensors, making them a great cost-effective option for temperature sensing and controlling needs.

Conclusion

NTC thermistors are a popular temperature sensor that are used in a variety of applications and industries. Their working principle involves the resistance of the thermistor material changing as a result of thermal energy changes, and they have several other beneficial properties including high precision, long-term stability, resistance to shock and vibration, and a wide temperature range. They are relatively inexpensive compared to other temperature sensors, making them a great cost-effective option for temperature sensing and controlling needs.

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