CHY-1型便携式测氦仪的研制和应用

Development and applications of CHY-1 portable helium measurement instrument

研制成功一种超小型便携式质谱计。仪器能够在野外现场测定样品中的氮气和氢气浓度及二者的比值,已经用于首都圈(河北省、天津市和北京市)地区20处地下流体流动观测点地下水、断层气样品的测定工作。测定数据按照测定点的经纬度、测定点名称、测定号、测定日期和时间保存。利用计算机将数据从仪器中取出进行编辑与处理。各种供电采用了DC-DC的模块,简化了由变压器整流滤波的供电方式。仪器具有灵敏度高,操作简便,稳定性好、数字显示、测定过程由单片机控制及便于携带的特点。

Based on mass spectrometric technique, a portable helium measurement instrument was developed. It can perform in-situ measurement of concentrations of helium and hydrogen in samples and their ratios at field observation points. The measurement process is controlled by a single chip computer. The power supply is provided by a DC-DC module. The measurement results are displayed digitally and the data are able to be stored according to latitude and longitude of measurement point, measurement location, measurement number, and measurement date and time. These data are edited and processed with computer. The instrument has already been used for detecting concentrations of helium and hydrogen in samples of underground hot waters and geological fault gases from 20 observation points of Hebei province, Tianjin and Beijing. The instrument is sensitive, easy-to-operate and stable.