When faced with thousands of NTC thermistor types, choosing the right one can be quite overwhelming. In this technical article, I will walk you through some of the important parameters to keep in mind when selecting a thermistor. This is especially true when deciding between the two common types of thermistors used for temperature sensing: negative temperature coefficient NTC thermistors or silicon-based linear thermistors.
Commonly used NTC thermistors for air conditioner
There are three types: indoor ambient temperature NTC, indoor coil NTC, and outdoor coil NTC. Higher-end air conditioners also use external ambient temperature NTC, compressor suction and exhaust NTC, и т.н.
How does the car reflect the temperature of the car engine coolant? It is through the water temperature sensor, which is also called the water temperature sensor plug. So where is the specific location of the car water temperature sensor? The water temperature sensor enables the control unit to identify engine overheating or an unusual rise in temperature. How much does a car water temperature sensor cost?
DS18B20 е често използван цифров температурен сензор. It outputs digital signals, has the characteristics of small size, ниски хардуерни разходи, силна способност против смущения, висока точност, and is widely used.
DS18B20 is a digital temperature sensor that uses a single bus timing to communicate with the host. Only 1 Wire is needed to complete the temperature data reading;
DS18B20 has a built-in 64-bit product serial number for easy identification. Multiple DS18B20 sensors can be connected to 1 Тел, and through 64-bit identity authentication, the temperature information collected from different sensors can be read separately.
В различни индустрии се използват висока точност и прецизна NTC термистори сензори, От медицински до индустриални приложения. Медицинската индустрия разчита на NTC в различни приложения, включително катетри, диализно оборудване, и наблюдение на пациентите. Тази част от медицинския сензор е 1355 Ома при 37 ° C с бета 25/85 на 3976.
Метални термични резистори като никел, copper and platinum resistors have a positive correlation with the change in resistance with temperature. Платината има най-стабилни физични и химични свойства и е най-широко използвана. The temperature measurement range of the commonly used platinum resistor Pt100 is -200～850 ℃. Освен това, the temperature measurement ranges of Pt500, Pt1000, и т.н. последователно се намаляват. Pt1000, temperature measurement range -200～420 ℃. Съгласно международния стандарт IEC751, температурните характеристики на платинения резистор Pt1000 отговарят на следните изисквания:
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