本參考設計是液位測量和控制系列的第一部分。第 1 部分介紹了現代壓力傳感器之間的差異，并強調了微機電 (MEMS) 溫度補償硅壓力傳感器的最新進展帶來的好處。這些傳感器現在價格合理，有多種封裝可供選擇，非常適合各種精密傳感應用，包括液位測量。然后，本文介紹了一種經濟高效、低功耗的液位測量數據采集系統 (DAS)，該系統使用補償硅壓力傳感器和高精度 delta-sigma ADC。本文將解釋如何選擇補償硅壓力傳感器。它將建議系統算法，分析噪聲，并提供校準思路，以提高系統性能，同時降低復雜性和成本。

This reference design is the first in a series on liquid-level measurement and control. Here in Part 1, differences among modern pressure sensors and emphasizes the benefits of recent advances in microelectromechanical (MEMS) temperature-compensated, silicon pressure sensors are described. Now reasonably priced and available in a variety of packages, these sensors are attractive for a wide variety of precision sensing applications, including liquid level measurements. The document then describes a cost-effective, low-power, liquid-level measurement data acquisition system (DAS) using a compensated silicon pressure sensor and a high-precision delta-sigma ADC. The article will explain how to select the compensated silicon pressure sensor. It will suggest system algorithms, analyze noise, and offer calibration ideas for improving system performance while reducing complexity and cost.