Signal isolator

Signal isolator, as an important role in the industrial control system, it can use the linear optocoupler signal isolation principle to complete the signal input, conversion and output, because of its very low energy consumption, has a strong anti-interference ability, so it is widely loved by various industries. You may have felt the convenience of the signal isolator, but do you know how to choose a good signal isolator? Here are some tips to share with you.

First, look at its accuracy

When selecting the signal isolator, its accuracy must be optimistic, which is an important parameter to measure the performance of the signal isolator. Whether the signal isolator can be used normally has a direct correlation with the level of accuracy, and its manufacturing level and design level can also be reflected from the accuracy parameters of the signal isolator, so we should choose a high accuracy coefficient when choosing the signal isolator.

Second, look at its output ripple

A parameter that has an important impact on the accuracy of the signal isolator is output ripple. The existence of high-frequency AC component in the signal isolator is mainly caused by the output ripple. This AC component has many harmonics and high frequency, which pollenes the signal greatly and is difficult to fully understand. Therefore, when choosing a signal isolator, you should choose a smaller output ripple.

Third, look at its temperature drift

Temperature drift means that the signal isolator will produce a lot of heat when it continues to work, and these heat will cause the output value of the signal isolator to change, and this change is the so-called temperature drift, the smaller the temperature drift indicates that the energy consumption of the signal isolator is lower, the more the heat of the signal isolator can be reduced, so as to ensure that the performance of the signal isolator is better. Therefore, when choosing a signal isolator, we should choose a signal isolator with small temperature drift.

In addition to looking at the above three parameters when selecting the signal isolator, the power consumption and response time of the signal isolator is also to look at, low power consumption and response time is too short signal isolator can not only ensure the accuracy of the values and parameters, but also make engineering costs and use cost savings, but also to ensure that the input changes get a true and accurate response.

The introduction of how to choose a good signal separator is here, and I believe you have some understanding. We will continue to update the relevant information of the signal isolator in the future, please pay attention to it.