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What is the range of the temperature sensor and the range error that can be accommodated

elecfans | 27/07/2021

Measuring range

Depending on the manufacturing process, the measurement range of the temperature sensor is also different.

Ceramic platinum thermal resistance can measure the widest temperature range, -200~800℃, and now it can reach -250~850℃.

Due to the characteristics of mica, the temperature measurement range of mica platinum thermal resistance is -200~420℃.

Because of its packaging and manufacturing characteristics, the temperature measurement range of thin-film platinum thermal resistance is -50~500℃.

The accuracy of temperature sensors with different principles and processes will vary.

Allowable error

Temperature sensors have a wide range of applications, and there are many types, roughly including the following types:

Thermal resistance, thermocouple, PN junction temperature sensor, integrated temperature sensor, acoustic temperature sensor, infrared sensor and microwave sensor.

1. The accuracy of PT100 is high.

In the national standard, pt100 is divided into two levels, A and B;

Measuring range: -200℃~+850℃

Class A accuracy is (0.15+0.002*|t|) degrees Celsius;

Class B accuracy is (0.30+0.005*|t|) degrees Celsius; where |t| is the absolute value of the actual temperature.

2. The integrated temperature sensor has a higher accuracy of ±0.2°C.

3. The general accuracy of temperature sensors used in clinical thermometers can reach ±0.1°C.

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