Température et résistance des applications de capteurs de température NTC

Le capteur de température NTC est un capteur à thermistance (plage de température de mesure: -30°C à +200°C (-22°F à +392°F) sonde étanche). Sa valeur de résistance change avec la température. CTN (Coefficient de température négatif) signifie que sa valeur de résistance est négativement corrélée à la température, c'est, à mesure que la température augmente, la valeur de la résistance diminuera; inversement, à mesure que la température diminue, la valeur de la résistance augmentera. Cette caractéristique rend le capteur de température NTC très approprié pour mesurer la température.

The working principle of NTC temperature sensor is based on the characteristic that the resistance of semiconductor materials changes with temperature. En général, the resistance of NTC temperature sensor decreases rapidly with the increase of temperature. This fast response speed makes it widely used in temperature control and monitoring.

There is a relationship between the resistance value and temperature of NTC temperature sensors, which is usually expressed as the Steinhart-Hart equation:

T = 1 / (R * ln(R / Rt)) – 1 / (Rt * ln(R / Rt))

Where (T) is the absolute temperature (K), (R) is the resistance value of the sensor (Oh), and Rt is the reference resistance value of the thermistor (Oh). This equation relates the resistance value of the thermistor to the temperature. By measuring the resistance value of the thermistor, we can calculate the corresponding temperature value using the Steinhart-Hart equation.

One of the key advantages of NTC temperature sensors is that they can provide high-precision temperature measurement while having a fast response time. This makes them widely used in many fields. Par exemple, appareils électroménagers, automobiles, medical equipment, etc.. En outre, NTC temperature sensors are more cost-effective than other types of temperature sensors, which is one of the reasons for their popularity.

NTC temperature sensors are used for energy temperature acquisition

Energy storage temperature acquisition

En outre, NTC temperature sensors also have the characteristics of small size, fast response speed and low cost, which makes them widely used in modern electronic devices. Par exemple, in portable devices such as smartphones and tablets, NTC temperature sensors can be used to monitor the temperature inside the device to ensure that the device operates within a safe temperature range and avoid problems caused by overheating or overcooling.

Les capteurs de température NTC sont utilisés dans l'acquisition de la température des appareils électriques

Electrical appliance temperature acquisition

NTC temperature sensors are also widely used in the field of industrial automation. In the industrial production process, temperature is a critical parameter and is essential for the control and monitoring of many production processes. NTC temperature sensors can help industrial equipment monitor temperature changes in real time, adjust process parameters in time, and ensure the stable production process.

En outre, NTC temperature sensors also play an important role in the medical field. In medical equipment, such as thermometers and blood glucose meters, NTC temperature sensors are used to measure human body temperature and monitor the health of patients. Accurate temperature measurement can help medical staff quickly detect abnormal conditions of patients and take timely measures to ensure the safety of patients.

NTC temperature sensors are used for electrical temperature acquisition

Industrial medical temperature acquisition

En général, NTC temperature sensors have been widely used in various industries due to their accuracy, fast response and cost-effectiveness. As an important temperature measurement device, NTC temperature sensors play an indispensable role in various fields of modern society, and play an important role in improving production efficiency, ensuring equipment safety, monitoring health status, etc.. With the continuous advancement of science and technology and the continuous expansion of application fields, NTC temperature sensors will have a broader development space in the future, providing more reliable and accurate temperature solutions for the development of various industries.