地下水溶解气数字化观测程控定量自动脱气装置  

Programmable quantitative automatic degassing device applying in the digital obs ervation of the groundwater solution

作　　者：蔡作馨 史华 杨鼎鸿 程庆斌 李毓[2] 邓宁 林仙坎[2] 

机构地区：[1]福建省宁德地震台,福建宁德352101 [2]福建省地震局,福建福州350003

出　　处：《地震》2003年第3期121-125,共5页Earthquake

摘　　要：介绍了一种适于与气体自动观测仪器配套、应用于地震地下水前兆数字化观测的定量自动脱气装置。该装置根据气体溶解平衡原理设计而成,采用了交联双循环技术,由单板机实现程序控制,可利用连续流经该装置的被测水样,周期性制备定量体积的与被测水样具有确定浓度关系的气态样品,供气体自动观测仪器进一步测量,并按照给定的理论公式,对被测水样中相关溶解气的真实浓度给出精确的定量表达。专门设置的"稳压功能"和"除水功能"使该装置具有较稳定的工作性能。A kind of automatic quantitative degassing device, which is suitable for automat ic gas observation instrument and applied in the seismic groundwater precursor d igital observation, is introduced in this paper. This device is designed based o n the method of gas solution balance. The cross-linked bi-circulating technolo gy is used and mono-plate processor controls the program of this device. The co ntinuously measured water sample, which flows through the device, is used to per iodically prepare quantitative volume gaseous sample which concentration is defi nitely relative to the measured water sample. The gaseous sample is furthermore measured by automatic gas observation instrument, and the real concentration of the solution gas of measured water sample is accurately given based on the theor etical formula. Furthermore the 'regulated voltage function' and 'dewater fun ction' are specially designed to make the working performance of this device mo re stable.

关 键 词：地下水溶解气 数字化观测 地震前兆 程序控制 定量自动脱气装置 地震观测仪器 

分 类 号：P315.62[天文地球—地震学] P315.723[天文地球—固体地球物理学]