Технологија контроле температуре

When selecting a thermistor, it is indeed necessary to comprehensively consider many key parameters and packaging (epoxy resin Encapsulation, Glass Bead Encapsulation, thin film Encapsulation, SMD Encapsulation, stainless steel probe sensor Encapsulation, injection molding coating). Let me tell you in detail:

‌ The resistance range of thermistors is wide, and the resistance of NTC thermistors can range from tens of ohms to ten thousand ohms, and even special devices can be customized according to needs. Commonly used resistance values ​​are 2.5Ω, 5Ох, 10Ох, итд., and common resistance errors are ±15%, ±20%, ±30%, итд. The resistance range of PTC thermistors is usually from 1KΩ to hundreds of KΩ.

‌Reasonable arrangement of temperature sensors‌: The location and arrangement of temperature sensors will also affect the response time. If the contact area between the sensor and the object being measured is large, the heat exchange will be faster and the response time will naturally be shorter. Међутим, please note that too large a contact area may also lead to increased measurement errors, so we have to make a trade-off based on the actual situation.

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 thermistors:

Начин повезивања НТЦ термистора температурног сензора треба да се одреди према стварном сценарију примене и захтевима мерења. Током процеса ожичења, обавезно обратите пажњу на поларитет пинова, избор жице, температурни опсег, филтрирање и раздвајање, третман уземљења, и верификација и калибрација како би се осигурала тачност и поузданост мерења.