表面温度测量使用光学效应或直接接触来检测技术组件的表面温度。在合适的工艺条件下，可以从管子表面温度足够准确地推断出管子内部介质的温度。与侵入式温度测量相比，这种方法可降低安装成本并减少过程中断(流量限制、污染风险)。

　　原文：

　　Surface temperature measurement uses optical effects or direct contact to detect the surface temperature of a technical component. Under suitable process conditions, it is possible to infer the temperature of the medium inside a tube from the temperature of the tube’s surface with sufficient accuracy. This method causes lower installation costs and fewer disruptions of the process (flow restrictions, risks of pollution) as opposed to invasive temperature measurement.