Fujian wireless communication company inquire current temperature sensor

Current temperature sensor applications

current temperature sensor used in wind power, wind power as a kind of clean renewable energy, more and more get the attention of the countries all over the world. The great amount of the aggregates, global wind power is about 2. 74 x 109 gigawatts (gw), which can use wind power to 2 x 107 gw, than on the earth can be 10 times larger amount of water development and utilization. Have long been used - wind - Mainly by windmills pumping, mill and so on, and in the new century, people are interested in how to use the wind to generate electricity, and how electricity is used. Current temperature sensor as the main detecting element, play a crucial role in it.

current temperature sensor in the use of the superiority

the traditional detecting element provisions frequency, waveform, the limitation of response lag and so on many factors, can't adapt to the development of high power converter technology, the application of a new generation of current voltage temperature sensor, voltage and current temperature sensor and true effective branches AC/DC converter combined into integrated temperature sensor, has become known as better detection module. In addition, electronic power devices to high-frequency, modular, modular and intelligent development, makes the plant designer, it will be a landmark on electronic power technology of radical change.

current temperature sensor using load resistance choose

load resistance refers to the resistance on the temperature sensor output end, output current signal is often limit the larger value of load resistance, the output voltage signal when the limit load resistance smaller values, when the temperature sensor output signal to current signal, usually needs to be converted to voltage signal at the sampling, then need to be in the output of the temperature sensor and measuring the resistance matching between OV, selection of current temperature sensor resistance by the size of the temperature sensor power supply voltage and the size of the measured signal have limitations, not randomly selected.

under the same power supply voltage, measure the resistance value will affect the temperature sensor can measure the size of the original edge signal range, the smaller the resistance, the measured signal, the greater the measuring range is larger, the greater the resistance, the smaller the measured signal, large measuring range is smaller, however, it is important to note that some resistance temperature sensor measurement can not be infinite, otherwise it will damage the temperature sensor.

are usually in the specification, the manufacturer will indicate the scope of measuring the resistance number, including the smaller and larger value, the resistance value as long as within the limits prescribed in the specification, the temperature sensor can work normally, meet the specifications of the parameters of the commitment.

current temperature sensor main characteristic parameters of the

1, the standard rating ISN IPN and rated output current.

IPN refers to the current temperature sensor can test the standard rating, expressed in RMS ( 武器) Product model, the size of IPN and the temperature sensor, ISN refers to the current temperature sensor rated output current, generally is 10 ~ 400 ma, of course, according to certain models may be different.

2, the offset current ISO.

offset current is also called the residual current and residual current, it is mainly by the components or electronic operational amplifier working state of the temperature sensor circuit of current instability, caused by the current temperature sensor in the production, at 25 ℃, IP = 0, the offset current is modulated to smaller, but the temperature sensor production line when you leave, will produce certain size of the offset current.

3, linearity.

linearity determines the temperature sensor output signal, Vice side current IS) With the input signal, Primary side current IP) Within the measuring range is proportional to the degree.

4, temperature drift.

offset current ISO is calculated in 25 ℃, when electrode surrounding environment temperature change, ISO can produce change, therefore, consider the large variation of the offset current ISO is very important, among them, the IOT is refers to the temperature drift in the current temperature sensor performance table values.