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1.前言在许多生产过程中都需要准确测定流量。这种测量通常分成两步进行,先由主装置把流量转换成某一物理量(例如差压或频率),然后用辅助传感器予以检测,转换成电测量信号。
1. INTRODUCTION Accurate flow measurement is required in many production processes. This measurement is usually done in two steps. First, the main unit converts the flow to a certain physical quantity (such as differential pressure or frequency), which is then detected by an auxiliary sensor and converted into an electrical measurement signal.