关键词:汽车工程;发动机;空气质量流量;热膜传感器;动态响应 [gap=998]Key words: automobile engineering; engine; air mass flow; hot-film sensor; frequency response
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为了实现流场壁面剪应力等动态定点分布测量,提出了一种新的柔性热膜传感器阵列结构,并介绍了其制作工艺。
In order to measure dynamically the local temperature or wall shear stress of a flow, a new structure of flexible hot-film sensor array and its fabrication process are proposed.
在对两种分离点在线检测方法比较和分析的基础上,采用了基于热交换原理的微型热膜传感器作为系统的测量元件。
Two methods of online measurement principle were compared, and micro thermal film sensor based on thermal exchange principle was adopted.
建模结果表明,动态非线性模型比线性模型更为准确地描述了热膜(线)式空气质量流量传感器的动态特性。
The modeling results show that the nonlinear dynamic models are more accurate than the linear dynamic models to describe the sensor characteristics.
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