空气负离子测量误差分析和评估  

Error Analysis and Evaluation of Air Negative Ion Measurement

作　　者：罗昶[1] 丁妙增 杨安良[1] 黄鹏良[1] 葛永华[1] 章焕 LUO Chang;DING Miaozeng;YANG Anliang;HUANG Pengliang;GE Yonghua;ZHANG Huan(Zhejiang Atmospheric Sounding Technical Support Center,Hangzhou 310018)

机构地区：[1]浙江省大气探测技术保障中心,杭州310018

出　　处：《气象科技》2020年第6期795-800,共6页Meteorological Science and Technology

基　　金：华东区域气象科技协同创新基金合作项目(QYHZ201806)资助。

摘　　要：为有效评估空气负离子测量误差,根据空气负离子测量方法,分析了离子收集器、微电流测量和空气流量引起的仪器测量误差。在离子收集器确定的情况下,微电流测量和空气流量是产生测量误差的主要因素。仪器集中比对和野外现场核查表明,不同类型仪器的测量结果基本能反映负离子浓度的变化趋势,但负离子浓度测量值相差较大,部分仪器超过了200%。通过风速和空气湿度的实验室模拟试验,说明了空气湿度对仪器影响较小,环境风速对仪器测量结果有较大影响。In order to effectively evaluate the measurement errors of air negative ions,this paper analyzes the measurement errors caused by the ion collector,micro-current measurement and air flow according to the measurement method of air negative ions.In the case that the ion collector is determined,the microcurrent measurement and air flow are the main factors that cause measurement errors.The centralized comparison of instruments and field inspections show that the measurement results of different types of instruments can basically reflect the change trend of negative ion concentration,but the measured values of negative ion concentration are quite different;some instruments exceed 200%.Laboratory simulation tests show that the influence of air humidity on the instrument measurement is small,and the environmental wind speed has a large impact on the instrument measurement.

关 键 词：空气负离子 测量误差 分析评估 影响因素 微电流测量 

分 类 号：P412.1[天文地球—大气科学及气象学]