Analog Signal Isolator Price - Why do control systems need Signal isolators

In the process of processing, whether it is the control system or the monitoring system, it will encounter the influence of the complex natural environment, or short circuit fault, overvoltage, fuzzy monopulse and so on. Therefore, isolators with the ability to maintain the lower set control circuit, mitigate noise hazards, suppress the impact of grounding devices or machine equipment, limit the voltage current, maintain the control system I/O and communication jacks, become an essential part of the control system. Analog signal isolator price

Principle of signal isolator:

The principle of the signal isolator is to convert the signal of the intelligent transmitter or instrument panel according to the semiconductor material device, and then complete the isolation transformation according to the gloss or magnetic sensing device, and then implement the modulation and demodulation transformation back to the original signal before isolation, and implement the isolation solution for the switching power supply of the power supply system after isolation. Ensure that the converted signal, switching power supply, and ground center must be separate. In addition, the influence signal accumulated on the accurate measurement value is filtered, and the signal is paired according to the input and output regulations of the control system, so that isolation, enlargement, filter and pairing are the functions of the signal isolator. Analog signal isolator price

Some DCS control modules have a built-in optical isolation function, which can fully consider all normal working requirements in some systems; However, the system software is unlikely to be in a normal state of operation from beginning to end, and once a security accident leads to device destruction, replacing the isolator is more time-saving than replacing the DCS control module. Therefore, Xiaobian proposed that it should be clear whether to install isolators according to the specific situation. Analog signal isolator price