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How the temperature sensor works

A temperature sensor is a device that measures temperature and converts it into an electrical signal. It is widely used in various industrial, scientific and consumer fields. If you want to know more about temperature sensors, you can read the articles below this topic.

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How the temperature sensor works Temperature sensors use various principles to measure temperature and convert it into an electrical signal. How they work includes: Thermocouples utilize the thermal electromotive force between dissimilar metals; RTDs measure resistance as a function of temperature; NTC/PTC thermistors change semiconductor resistance; Temperature diodes have a forward bias voltage proportional to temperature; Infrared sensors detect Infrared radiation from a target object; silicon sensors convert temperature using analog or digital technology.

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What types of temperature sensors are there? There are many types of temperature sensors including: thermocouple, RTD, semiconductor, infrared, laser, bimetal, liquid expansion, and fiber optic sensors. Factors such as measurement accuracy, temperature range, response time, durability, environmental conditions, cost, and availability should be considered when selecting.

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The role of temperature sensor The function of a temperature sensor is to convert temperature changes into electrical signals that can be processed by electronic systems. Its working principle is based on resistance changes, voltage generation or resonant frequency changes. Major types include thermistors, thermocouples, piezoelectric sensors, infrared sensors, and fiber optic sensors. They are widely used in industrial, consumer electronics, medical, environmental monitoring and automotive fields. When selecting a temperature sensor, consider temperature range, accuracy, response time, size, cost, and environmental compatibility.

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