气压传动.压缩空气调压阀和带过滤器的调压阀.第3部分:调压器的流量率特性测量用交替试验方法

[中文适用范围]： ISO 6953 的这一部分规定了测试使用可压缩流体（即气体）的气动流体动力组件的替代测试方法。 ISO 6953的本部分仅适用于正向流量和溢流流量特性的滞回曲线的递减流量部分。 该方法适用于以下情况： ——与充电和放电测试期间压力变化的响应相比，被测部件的压力调节动态足够快，可以忽略不计； ——压力响应没有表现出任何超调或任何振荡行为。 ISO 6953 的这一部分规定了测试安装、测试程序和结果呈现的要求。 给出了测试结果的示例，以及各种数据处理方法，以及数据处理过程的可视化。 还给出了调节压力响应的过冲和下冲以及入口压力的大变化的说明。 ISO 6953 的本部分适用于以下组件： ——符合 ISO 6953-1 的压缩空气压力调节器和过滤调节器； ——符合 ISO 10094 的电动气动压力控制阀； ——其他部件，例如安全阀。 注：如果需要压力调节特性，则适用 ISO 6953-2。 [外文原描述]： ISO 6953-3:2012 specifies alternative test methods for testing pneumatic fluid power components that use compressible fluids, i.e. gases. This part of ISO 6953 is applicable only to the decreasing flow rate part of the hysteresis curve of forward flow and relief flow characteristics. This method can be applied when: the pressure regulation dynamics of a component under test is rapid enough to be negligible, compared to the response of pressure changes during charge and discharge tests; the pressure response does not show any overshoot or any oscillating behaviour. ISO 6953-3:2012 specifies requirements for the test installation, the test procedure and the presentation of results. Examples of test results are given, as well as various data processing methods, and visualization of data processing procedures. Illustrations of overshoot and undershoot on regulated pressure response and large variations on inlet pressure are also given. ISO 6953-3:2012 applies to the following components: compressed air pressure regulators and filter-regulators according to ISO 6953-1; electro-pneumatic pressure control valves according to ISO 10094; other components such as relief valves.