In current market, there is an active demand for high stability, high precision and high heat-resistance NTC thermistor , such as thermistor for measuring exhaust gas for automobile. The working temperature is 400-500C. For liquefied petroleum gas temperature measurement, the temperature is rather high too. Therefore, the need for high temp. thermistor is very urgent. Mn-Co-No series thermistor temperature is about 300C. In order to increase the working temperature, there are some experiments fo...(more)
TEC is the abbreviation of thermoelectric cooler, which is a kind of heat pumps. It has many advantages of no sliding parts, no noise, long service lifetime, good reliability and flexible control. When supplying a power supply, TEC can be rapidly cooling, and when the current reverses, it can also be rapidly heating. Based on the above advantages, TECs have been widely used for mechanical fields and electronic fields. Here are some introductions to cooling characteristics of TECs. TEC consists o...(more)
1.Zero power resistance R T At a specified temperature, resistance value can be measured by measuring power value, which can be negligible comparing with the total error. 2. Rated zero power resistance R25 It is the designed resistance of NTC thermistor and in general, it refers to the measured resistance at the temperature of 25℃ 3. B value B is the thermal index of NTC thermistor, which is defined as the ratio of the natural number difference of zero power resistance under two temperatures an...(more)
NTC is the abbreviation of negative temperature coefficient, which refers to semiconductor materials of devices with large negative temperature coefficients. NTC thermistor is made of manganese, cobalt, nickel and copper and other metal oxide by ceramic manufacturing process. At the regular temperature, the range of NTC thermistor range is 10~1000000 and temperature coefficient is -2%~-6.5%. NTC thermistor has been widely used for temperature measurement, temperature control, temperature compens...(more)
With the development of technology and economy, thermal silicone pads have been widely used for electronic products, auto mechanics, computers, DVD, VCD and some other products, which need filling materials and heat dissipation. Thermal silica is a kind of thermal interface materials based on silica gel, metal oxide and other auxiliary materials. The main function of thermal silicone pads is to transfer heat by the gap. At the same time, it can also play roles of insulation, shock absorption and...(more)
With the promotion of computer performance, power consumption of CPU is increasing constantly. Due to technology improvement, the power consumption has been alleviated, but because of the enhancement of graphics performance, CPU power consumption is proportional to its performance. Therefore it is still a worthy of our attention that the power consumption is too large to result in higher temperature. Now there has been a very high degree of concern about the heat dissipation problem, however, th...(more)
II. The performance of thermistor With higher and higher precision requirement for temperature measurement and more and more harsh measurement environment requirement, high stability and precision thermistor has been developed and produced. This kind of thermistor has compact size, wide resistance, high precision, and short response time. III. The development of thermistor As the thermistor in high temperature application, it shall has the following conditions: a. Thermistor material is stable;...(more)
In industry and agriculture manufacture, national defense, scientific research and office equipment automation fields, temperature is a very critical data. Temperature sensor, i.e. thermistor is a kind of sensor with repeatability and regularity. Among all the temperature sensitive components, thermistor holds a very important position, accounting for 40% of the total temperature sensitive components. According to the characteristics of resistance change with changes in temperature, there are tw...(more)
