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Protect NTC thermistor with epoxy resin
2021-06-23
用环氧树脂保护NTC热敏电阻 上海维连电子Use epoxy resin to protect NTC thermistor


A common method that protects NTC thermistor that is not damaged by possible damage performance is to encapsulate or encapsulate it in epoxy resin. This chemical characteristics are used to protect the industrial -grade epoxy resin that protects NTC thermistor.
 
A radial wires with two tear -like temperature sensors have two tear -like temperature sensors negative temperature coefficients . Generally, these types of NTC thermistor temperature sensors are used to apply near humidity. Some of these applications include medical equipment that measures air flow and air temperature. Epoxy resin bead -sensitive resistance is also often used in automotive application monitoring cabin air conditioners and seat heating.
 
Green energy like wind turbine will encounter potential destructive conditions in a cold climate. Frozen rain or lower temperature of the freezing point can cause the leaves to freeze, resulting in a decrease in power output and increased rotor load. NTC thermistor detection monitoring and controlling the temperature of the blades to make the turbine's automatic/off control quickly respond.
 
The key is to protect NTC thermistor does not directly contact liquid, such as water or oil. To achieve this, thermal conductivity epoxy resin is used as a sealing agent called "sealing". middle. This epoxy resin not only protects the NTC sensor is not moisture, but also has good thermal conductivity between the measured medium and thermistor sensor. Thermal conductivity epoxy resin provides work efficiency without degeneration.
 
A stainless steel sensor probe can measure the oil temperature, oil level and viscosity of the car engine and the cooling fluid temperature of the engine. Another NTC thermistor that is encapsulated in the probe component is a ring -shaped convex ear probe. This thermal resistance component is used to measure the surface temperature.
 
Circular convex ears thermistor temperature sensor probe is usually installed on the radiator to measure the working temperature of the power component. They are also increasingly used for lithium -ion battery terminals to monitor the temperature of the battery in the charging and discharge cycle to improve efficiency and safety.

Four reasons for epoxy resin seals
 
1. Thermistor resistance
Epoxy coating or sealing provides a moisture -proof layer to prevent water vapor from invading thermistor resistance sensor. This helps wet -sensitivity level 1 rated value, indicating that thermistor is not affected by water penetration in an infinitely long period of time.
The level of humidity sensitivity is not sensitive, one year, 4 weeks, and 1 day.
 
2. The physical protection of thermal resistance
Sealing NTC thermistor in epoxy resin can protect the sensors from accidental impact during manufacturing and operation. Without this protection, the impact may cause the critical tolerance for thermistor to lose long -term accuracy. Epoxy resin coating or sealing can also provide effective protection in the application of high energy or high -frequency vibrations in thermal resistance probe, such as applications related to mining equipment, industrial vehicles and aircraft.
 
3. Electrical insulation of thermistor
This epoxy resin type is used for sealing and coating NTC thermistor can also provide protection in the form of electrical insulation. The accidental electrical contact with other components, metal cases or chassis parts may damage thermistor. Epoxy resin coating can also prevent the surface of thermal resistance from oxidation.
 
4. Flame retardant thermistor
The flame retardant and flame retardant of epoxy resin coating. This important feature of industrial -grade epoxy resin comes from additives in epoxy coatings. The additive helps improve the overall safety of the product Essence

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