subject: Linear Guide Ntc Temperature Sensor - Temperature Sensor - Electronics Industry - Flanged Ball Valve [print this page] Thermal component, it is actually a linear temperature - voltage conversion device, that is in communication with operating current (100uA) under the conditions of the voltage component changes linearly with temperature in order to achieve the non-electricity to power linear transformation.
2. Linear NTC temperature Sensor What are the main features?
This temperature sensor whose main characteristic is the temperature in the working temperature range - voltage relationship as a straight line, which for the secondary development of temperature measurement, temperature control circuit design, without linearization, temperature measurement can be completed or temperature control circuit, thereby simplifying the design and debug instrument.
3. Linear NTC temperature sensor Temperature range for it?
The general, the temperature can range between -200 ~ +200, but consider the actual needs of the general need not be so wide temperature range, which provides three different sections to accommodate different package design, while the choice of the extension cord is also different. For the linear thermal temperature compensation specific components, only the set temperature range is -40 ~ +80. Fully meet the general circuit of temperature compensation purposes.
4. Choose to extend the line of what principles should be followed?
General in the -200 ~ +20, -50 ~ +100 wish to use an ordinary Shuangjiao line; in the range of 100 ~ 200 high temperature wire should be used.
5. Reference voltage mean? Reference voltage is 0 of temperature sensors placed in field (ice water mixture), in communication with operating current (100 A) of the conditions, the sensor voltage. Voltage is actually 0:00. The said symbol V (0), the value of the factory calibration, the sensor temperature coefficient S as the same value as long as that reference voltage V (0), knowledge can point to any temperature sensor voltage, without sensor for indexing. The formula is:
V (T) = V (0) + ST (the curve below)
Example: If the reference voltage V (0) = 700mV; temperature coefficient S =- 2mV /, then at 50, the sensor output voltage V (50) = 700? 250 = 600 (mV). This linear temperature sensor is better than other temperature sensors a society.
6. Temperature coefficient of S's mean?
Temperature coefficient S is the required operating conditions, the sensor output voltage change and temperature change ratio, which changes every 1 temperature sensor output voltage changes in the value: S = V / T ( mV /).
Temperature coefficient of linear temperature sensor is used as the physical basis of temperature measurement devices, their role and Thermistor B-values similar to the parameters in the entire operating temperature range is the same value, that is-2mV /, and various types of sensors are the same values that the traditional thermistor temperature sensor is unparalleled.
7. Swap accuracy What is the significance of this argument?
Swap accuracy is in the same working conditions (the same current, the same temperature field) for an ideal fit with a fixed line, every sensor voltage V (T)? Temperature T curve and the straight line maximum deviation, the deviation usually in the temperature sensor? voltage conversion factors to express S converted into temperature.
