![]() ![]() Therefore, to ensure the stable and reliable operation of the system, the "ground loop" problem is a problem that must be solved in the process of system signal processing. Due to the potential difference between the signal reference points between the instrument and the equipment, it forms a “ground loop” which causes distortion during signal transmission. ![]() In this case, in addition to the performance reasons of each instrument and equipment itself, such as anti-electromagnetic interference, there is also a very important factor. When various devices form a system, it is often found that the signal transmission between the instrument and the device interferes with each other, causing the system to be unstable or even misoperation. There are both low-frequency DC signals and high-frequency pulse signals and so on. The signal transmission between them includes small signals ranging from weak to millivolts and micro-amps, and large signals of tens of volts, or even thousands of volts and hundreds of amperes. The realization of monitoring and control in the industrial production requires the use of various automated instruments, control systems and actuators. Therefore, today we going to introduce signal isolator to you and we hope that you can know how does it work after reading. Isolator, also known as signal isolators, is an important part of industrial control systems. Input, output and working power are isolated from each other, especially suitable for use with equipment and meters that require electrical isolation. The isolator uses a kind of linear optocoupler isolation principle, which converts the input signal and outputs it.
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