浮子式数字水位仪的设计与初步测试  

Design and initial test of float digital water level meter

作　　者：居海华[1] 夏忠[1] 瞿旻[1] 熊建伟[1] 

机构地区：[1]江苏省地震局,中国南京210014

出　　处：《地震地磁观测与研究》2013年第3期128-133,共6页Seismological and Geomagnetic Observation and Research

基　　金：2008年度中国地震局"地震监测;预报;科研三结合"课题;江苏省地震局青年基金(200906)

摘　　要：针对目前广泛应用于地下流体水位观测中的投入式水位仪存在稳定性差、零漂大等缺点,研制采用智能型绝对值多圈光电编码器的浮子式数字水位仪,介绍其工作原理和仪器结构,并给出仪器性能的实验测试结果,发现其具有高分辨率、高稳定性和低零漂的特点。Aimed at the problem of poor stability and large zero drift that exists in the putting-into- type water level meter, which has been widely used in the water level observation of under- ground fluid, we have developed the float digital water level meter by intelligent absolute multi-turn photoelectric shaft encoder. In this paper, its working principle and instrument structure is introduced. The experimental results of instrument performance are presented. It has high resolving power, stable property and small zero drift.

关 键 词：零漂 智能型绝对值多圈光电编码器 浮子水位仪 ARM9 嵌入式Linuxl水震波 

分 类 号：TH764[机械工程—仪器科学与技术]