导电滑环为自动化控制系统中极为重要的部件，它负责为系统提供能源、信息传输的通道。因此它的性能参数和质量以及影响质量的因素、质量控制就变得尤其重要。它的性能直接关乎整个系统运行的稳定性，甚至是正常运行。下面是杭州百旋动力科技就滑环主要电气性能做一些简单的介绍。以便大家在滑环选型时能够更全面的评估和选择。

一、首先是滑环的电接触性能

滑环的作用是电连接传输功率和信号，必须具备优良的电接触性能。由于导电环的接触方式是属于电气滑动接触，因此它需要具备耐磨性，抗电蚀性。

通过以上几点，我们可以发现导电滑环接触件需要具备优良的导电性、耐磨性好、抗电蚀性强的特点。我们知道导电性能最好是Ag，其次是Cu、Au、Al…但是这些金属硬度都很低，耐磨性差，为了弥补这个缺点，根据实际的应用需求，我们会在这些金属中添加其他金属元素来增加材料硬度以增强耐磨性，合金材料。除了材料的本身性能，我们还需要关注接触面的光洁度，一个粗糙接触面或是接触面上的一个瑕疵，都会影响电滑环的传输效果。

二、导电滑环的抗干扰性

滑环需要在限制的空间内传输各种不同的信号，有高频交流电、高压交流电、大电流交流电、弱小的直流小信号，由于环间距离很近，在信号传输过程中就会产生各种干扰，导致传输的信息失真。一般磁干扰，我们采用电磁屏蔽；电干扰，我们采用电场屏蔽，等方式来减少干扰。

三、电滑环的绝缘性能

绝缘性能是滑环安全性能，包括环道间绝缘、环道与外壳间绝缘，导线间绝缘、环道与导线间绝缘、环路和导线与外壳间的绝缘，绝缘性能取决于绝缘材料，也取决于滑环的生产工艺和使用环境，不同的生产工艺，我们所采用的绝缘材料的材质和形态都不一样，通常我们需要考虑绝缘材料的绝缘性、耐老化性、吸水率、防火等级、耐高温、以及机械强度等方面。针对不同的应用选择合适的绝缘材料至关重要。

以上几个方面是我们在选择导电环时，重点需要考虑的几个因素。

The conductive slip ring is an important part in the automatic control system, which is responsible for providing energy and information transmission channels for the system. Therefore, its performance parameters and quality, as well as the factors affecting the quality and quality control become particularly important. Its performance is directly related to the stability of the whole system, even normal operation. Here is a brief introduction to the main electrical performance of the slip ring by Hangzhou Baixuan power technology. So that we can make a more comprehensive evaluation and selection in the selection of slip ring.

1、 First, the electrical contact performance of slip ring

The function of slip ring is to transmit power and signal by electric connection, so it must have excellent electric contact performance first. Because the contact mode of the conductive ring belongs to electrical sliding contact, it needs to have wear resistance and corrosion resistance.

Through the above points, we can find that the conductive slip ring contact needs to have excellent conductivity, good wear resistance and strong resistance to electric erosion. We know that the best conductivity is AG, followed by Cu, Au, al But these metals have low hardness and poor wear resistance. In order to make up for this defect, according to the actual application demand, we will add other metal elements to these metals to increase the hardness of materials to enhance wear resistance, alloy materials. In addition to the performance of the material itself, we also need to pay attention to the smoothness of the contact surface. A rough contact surface or a flaw on the contact surface will affect the transmission effect of the electric slip ring.

2、 Anti interference of conductive slip ring

The slip ring needs to transmit various signals in the limited space, including high-frequency alternating current, high-voltage alternating current, large current alternating current and weak small direct current small signals. Due to the close distance between the rings, various interferences will occur in the process of signal transmission, resulting in the distortion of the transmitted information. For general magnetic interference, we use electromagnetic shielding; for electric interference, we use electric field shielding to reduce interference.

3、 Insulation performance of electric slip ring

The insulation performance is the safety performance of slip ring, including the insulation between the rings, between the rings and the shell, between the wires, between the rings and the wires, between the rings and the shell. The insulation performance depends on the insulation material, and also depends on the production process and the use environment of slip ring. Different production processes, the materials and shapes of the insulation materials we use are different Often we need to consider the insulation, aging resistance, water absorption, fire rating, high temperature resistance, mechanical strength and so on. It is very important to choose suitable insulating materials for different applications.

The above aspects are the key factors we need to consider when choosing the conductive ring.