The Application of NTC Thermistor in Arm Type Intelligent Thermometer.Radar Microwave Induction Sensor Switch Production

　　Smart thermometers can be divided into smart electronic thermometers, smart infrared thermometers and wearable smart thermometers according to their different functions. The arm type intelligent thermometer belongs to the wearable intelligent thermometer.

　　We all know that in every family with children, during their growth process, especially during infant development, fever and colds are a common occurrence. When children are still young, measuring body temperature has become a difficult topic. At this point, the arm type intelligent thermometer is the best invention.

　　The working principle of arm type intelligent thermometers is usually to use Internet of Things RFID technology to convert the body temperature data collected by NTC thermal temperature sensors into analog to digital, and then transmit the data through Bluetooth or WiFi technology. The arm type intelligent thermometer is similar to the watch type, and is bound to the upper arm of a person when used. It can continuously monitor body temperature for 24 hours and has high-precision characteristics.

　　The arm type intelligent thermometer uses NTC thermistor as the temperature sensor, and NTC represents "negative temperature coefficient". NTC thermistor is a resistor with a negative temperature coefficient, which means that the resistance decreases with the increase of temperature. They are mainly used as resistance temperature sensors and current limiting devices.

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