The mathematical models of differential pressure transmitter of force-balanced type are presented. The general method of dynamic analysis of the instrument is discussed.

本文建立了力平衡式差压（压力）变送器的数学模型，论述了此仪表动态特性分析的一般方法。

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A leak detection and positioning system of oil pipeline based on dynamic pressure transmitter is designed, and the system composition and testing principle are specified.

设计了一套基于动态压力变送器的输油管道泄漏检测与定位系统，阐述了其系统组成和检测原理。

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And the inductance sensor is one kind of position transmitter widely used in the present dynamic measurement.

其中电感式传感器是目前动态测量中用途较广的一种位移传感器。

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