Article analysis - temperature sensor characteristics and body temperature measurement

"Temperature" is an important thermal physical quantity. It is not only closely related to our living environment. In scientific research and production process, temperature changes are crucial to the results of experiments and production. In medicine, Temperature Measurement and temperature The error is very important for the judgment of the disease. This experimental instrument is not only suitable for ordinary physical experiments, but also suitable for Medical physics experiments. Temperature sensors are made of some metals, semiconductors and other materials with temperature-related properties. For the thermal resistance, the semiconductor thermal resistance is called the thermistor. After the instrument is energized, in addition to the measuring instrument and the experimental power supply, the experimental circuit should be plugged into the experimental power supply before it can work. Adjust the temperature controller before heating (set the predetermined temperature For the first time, PID adaptive tuning is performed at 60.0 °C. Medical students should perform PID adaptive tuning at 37.0 °C and calibration with a mercury thermometer at 37.0 °C. The experiment can be performed by inserting the experimental circuit according to the panel circuit diagram.

Temperature Sensor characteristics and human body temperature measurement experiment instrument by high accuracy temperature control constant temperature heating system, DC regulated power supply, Pt100 Temperature sensor, NTC1K Thermistor Temperature Sensor, PN junction temperature sensor, voltage type integrated temperature sensor LM35, digital voltmeter , adjustable amplifier, patch cord and other components. Due to the consideration of experiments suitable for medical physics, the instrument has been fully designed for temperature correction of temperature sensor applications. The temperature measurement accuracy of the instrument in the human body temperature range (35.0 °C - 42.0 °C) is ± 0.10 °C.

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