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Under what scenario uses NTC thermistor and its necessity
2021-06-04
什么场景下使用NTC热敏电阻探头及其必要性 上海维连电子Under what scenario uses NTC thermistor and its necessity
 
NTC thermistor probe was used to measure and analyze temperature as early as 1940, but now, they are indispensable from domestic electrical appliances to electric vehicles that need lithium ion batteries. From car electronics to medical technology to green energy, they have been used to measure liquid levels and temperatures. Their application is endless, and their purpose is important.
 
The heating resistance probe is made of naked beads. It is packaged with epoxy resin or glass. It is usually installed in a metal or plastic shell. There are two high -temperature insulation wires. These devices can be found everywhere we live and work, from the moment we wake up to cook coffee until we return home to sit in front of the TV to relax. They are indispensable for our car we drive to work, the computer necessary for work, and the electrical appliances that we prepare food after get off work.
什么场景下使用NTC热敏电阻探头及其必要性 上海维连电子NTC thermistor temperature sensors include closed metal oil pipes, threaded metal tubes, and shells of a threaded tip and hexagonal screw in all types of shells (as shown in the figure).

Understand the influence of thermal resistance probe
Due to the general existence of thermistor, understanding how thermistor is working, what capabilities, and their potential. Part of this understanding includes the electrical characteristics of the probe that follows a certain working principle, including resistance, capacitors, ultrasonic, radioactive, pressure and heat guidance. In view of the wide range of thermistor and the scope of application, although thermist resistance has a large size and shape, it is impossible to create a general thermal resistance probe. The thermistor type used to measure the temperature of the cooling agent is very different from the type of thermistor used in the measuring temperature used in the wind turbine.
 
The innovation of thermal resistance probe in the automotive field
If there are no thermistor detectors, many cars, electrical appliances, industrial equipment and anything that need electricity can basically not work normally, or even work at all. Engineers rely on these equipment as the energy, heat or cold, and need temperature measurement, control and accuracy. In 1966, about two thermal resistance per unit of the car reported to various instruments and electronic control modules. In the 1970s, this number increased to the 1980s to the 40s and 1990s, and there were 60 thermistor on the car. Today, 80 to 100 thermistor is used in cars. Over time, the complexity and refinement of automotive technology mainly promote the index growth of the thermistor. With the improvement and improvement of automotive technology, the demand for thermal resistance has also increased. In the car seat heater, air conditioner, oil thermometer, window and rearview mirrors, lithium ion batteries of electric vehicles, and even in the heating and cooling system of adjusting and controlling the temperature in the car Detection, adjustment and control of the temperature in the vehicle.
 
In addition, more functions and processes need to be sensing to improve vehicle performance, driver convenience, car safety, and reduce or control emissions. Today's car shows more artificial intelligence, one of which is the need for perception and adjusting temperature. For example, the thermostat used to measure the temperature of the coolant and the climate temperature of the cabin room has been replaced by thermal resistance, and the thermistor has a faster response time and more accurate. Another indispensable application of thermistor on the car is to detect the oil level and viscosity, and then remind the driver or operator when to change it.
 
Application of thermist resistance probe such as green energy and medical technology
In the field of medical care, thermistor temperature sensing probe is crucial due to its high sensitivity, high accuracy and interchangeability. The respirator is a good example. The air entering the patient's lungs must be 37 ° C, which is the same as the body temperature. Heat -sensitive resistance perception of air temperature and sending signals to the respirator to regulate and compensate.
 

At our home, thermistor resistance is everywhere, microwave oven, baking bread machine, dishwasher, air conditioner, portable heater, washing machine and dryer, bathtub, hot water bathtub, sauna, refrigerator, electric kettle, etc. Essence There is no thermistor to sensorize heat, and the microwave oven is prone to overheating. Similarly, the portable heater also uses thermal resistance, which may become too hot and cause fire.


什么场景下使用NTC热敏电阻探头及其必要性 上海维连电子

NTC thermistor probe is widely used in the field of green energy, including wind turbine and solar energy to monitor and control temperature in the cold climate of the ocean or receive ice and snow.

The application of heat -sensitive resistance in the field of green energy is making tremendous progress. Wind turbine is a good example, and the use of thermistor probe probe is essential. In cold countries or environments, wind turbines are easy to freeze. The thermistor on the fan blade has two long lead. It can adjust and perceive the air temperature, thereby controlling the switching movement of the wind turbine heater so that the leaves will not freeze. If the blade is frozen, it will cause low efficiency and cause the entire unit to run.

 
How to select and integrated thermistor probe in different applications
Different application scenarios require thermal resistance probe, so there are also unlimited ways to install them. Some thermistor can become a very complicated way, where they are placed and they are installed.
 
When it comes to probes, this refers to the metal or plastic component shell, covering different applications and functions of the beads with different thermistor. These probes have various shapes, size and installation options. Some probes are long and narrow, with stainless steel shells for vehicles to measure oil or water temperature. Other thermistor probes integrated threaded pipes for engine or medical equipment to detect and monitor temperature. The probe with ring -shaped convex ears is usually used with the radiator or lithium -ion battery.
 
The top of each thermistor resistance is a chip, and then packaged in glass or epoxy resin. According to the application, this kind of bead -shaped thermistor is then loaded into the metal or plastic shell, customized according to very specific requirements. When used with applications such as lithium -ion batteries, the heating resistance probe with ring -shaped convex ears can be easily installed on the battery terminal. This heating resistance probe can effectively monitor the battery temperature, so it does not rise to a certain degree.
In the chart below, we explain different thermistor and their compatible shells.
 
For more details and information about NTC thermistor solutions, visit Shanghai Victorian Electronics www.weilianchina.com.

The thermistor sensor of Vician Electronics, RTC temperature sensor, NTC temperature sensor, platinum resistance temperature sensor, PT100 temperature sensor, transmitter, digital instrument, etc., Vicannia albums develop, design, produce, and sales of electronics are all of the electrons. Component brand. Having more than 20 years of experience in the electronic industry, and cooperation of colleges and universities in the long -term institution; you can customize parameters and sizes according to customer requirements, pay attention to customer special needs (mechanical and electronic product transformation and upgrading, solution provision, etc.).

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