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Temperature and Humidity Sensors

Thermistor- Thermistors are thermally sensitive resistors whose prime function is to exhibit a large, predictable and precise change in electrical resistance when subjected to a corresponding change in body temperature. Negative Temperature Coefficient (NTC) thermistors exhibit a decrease in electrical resistance when subjected to an increase in body temperature and Positive Temperature Coefficient (PTC) thermistors exhibit an increase in electrical resistance when subjected to an increase in body temperature. For applications where cost, space, or fragility are relevant, other types of electronic sensors are used, at the price of a lower accuracy. In capacitive humidity sensors, the effect of humidity on the dielectric constant of a polymer or metal oxide material is measured. With calibration, these sensors have an accuracy of ±2% RH in the range 5–95% RH. Without calibration, the accuracy is 2 to 3 times worse. Capacitive sensors are robust against effects such as condensation and temporary high temperatures.Capacitive sensors are subject to contamination, drift and aging effects, but are suitable for many applications. In resistive humidity sensors, the change in electrical resistance of a material due to humidity is measured.Typical materials are salts and conductive polymers. Resistive sensors are less sensitive than capacitive sensors - the change in material properties is less, so they require more complex circuitry. The material properties also tend to depend both on humidity and temperature, which means in practice that the sensor must be combined with a temperature sensor. The accuracy and robustness against condensation vary depending on the chosen resistive material. Robust, condensation-resistant sensors exist with an accuracy of up to ±3% RH. In thermal conductivity humidity sensors, the change in thermal conductivity of air due to humidity is measured. These sensors measure absolute humidity rather than relative humidity.

Sensors > Temperature and Humidity Sensors

Наименование детали	DS	Производитель	Дата выпуска	Кол-во	Регион	Активный
AD22100KR		ADI	-	196	Hong Kong	Связаться с продавцом
AD22100KR		ADI	2013+	1071	Hong Kong	Связаться с продавцом
AD22100KR		ADI	199543+	542	Hong Kong	Связаться с продавцом
AD22100KR		ADI	2021+	5000	South Korea	Связаться с продавцом
AD22100KR		ADI	2016+	3600	China	Связаться с продавцом
AD22100KRZ		ADI	-	73	Hong Kong	Связаться с продавцом
AD22100KRZ		ADI	2024+	3676	China	Связаться с продавцом
AD22100KRZ		ADI	2024+	5000	Hong Kong	Связаться с продавцом
AD22100KRZ		ADI	-	94	Poland	Связаться с продавцом
AD22100KRZ		ADI	2021+	5000	South Korea	Связаться с продавцом
AD22100KRZ-REEL7		ADI	-	81	Hong Kong	Связаться с продавцом
AD22100KRZ-REEL7		ADI	201811+	89	China	Связаться с продавцом
AD22100KRZ-REEL7		ADI	2021+	5000	South Korea	Связаться с продавцом
AD22100KRZ-REEL7		ADI	201811+	87	Japan	Связаться с продавцом

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