Vários casos de aplicação de sensores termistores

As a component that can change the resistance value according to temperature changes, thermistors have a wide range of applications (such as temperature measurement, temperature control, temperature compensation, temperature alarm, battery thermal protection). Let me share with you several application cases of thermistor sensors:

Application Cases of Thermistor Sensors

Battery thermal protection of thermistor sensor

Alarme de temperatura do sensor termistor

‌Temperature measurement‌: This is one of the most basic applications of thermistors. By measuring the change in the resistance value of the thermistor, we can infer the temperature of the object being measured. This application is very common in industrial automation, medical equipment, and household appliances. Por exemplo, in the medical field, NTC temperature sensors (i.e. temperature sensors using NTC thermistors) are used in ventilators to monitor temperature changes in the respiratory tract in real time to ensure that the ventilator can continuously and accurately maintain the patient’s respiratory function.
‌Temperature control‌: Thermistors can be used in conjunction with thermostats or control systems to achieve precise temperature control. Por exemplo, in air conditioners, temperature sensors use thermistors to monitor and control indoor temperature. When the temperature exceeds or falls below the set threshold, the thermistor can trigger the control system to take corresponding measures, such as turning on or off the cooling equipment.
‌Temperature compensation‌: The performance of some electronic components is greatly affected by temperature. In order to ensure the stability of their operation, thermistors can be used for temperature compensation. Through the changes in thermistors, we can correct the deviation of the components and improve the accuracy and stability of the system. This is very important in some systems that need to maintain stable temperature.
‌Temperature alarm‌: In some occasions where strict temperature monitoring is required, thermistors can trigger the alarm system when the temperature exceeds or falls below the set safety range. Por exemplo, in a fire alarm system, when the temperature exceeds the set threshold, the thermistor will trigger an alarm to remind people to take countermeasures.
‌Battery protection‌: Thermistors are also suitable for short-circuit and overheating protection of lithium-ion batteries and nickel-metal hydride batteries in laptops and mobile phones. When the battery is overcharged or short-circuited, the battery will heat up. At this time, the thermistor resistance on the internal circuit board of the battery will rise, limiting the current to a safe range, thereby protecting the battery from damage.

Temperature compensation of thermistor sensor

Temperature control of thermistor sensor

Temperature measurement of thermistor sensor

These are just some of the cases where thermistors are used. In fact, its applications are far more than these. Thermistors play an important role in various fields with their unique performance and wide application areas. I hope these cases can help you better understand the application of thermistors!