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为电信传输地震台网研制的768数字式水氡仪可以观测地下水氡浓度的连续变化,该仪器由二次自动连续式玻璃脱气装置和采用 CMOS 集成电路的脉冲计数器组成,与全国电信传输地震台网配接可将观测结果自动传输至分析记录中心。仪器的主要性能是:测量范围1～200埃曼,测量灵敏度为800脉冲/分/埃曼,脱气效率>50%,响应时间<5分钟,稳定度为±5%,工作环境的温度为-15℃～+45℃、湿度<90%,功耗<20W。该仪器经过各种性能试验和长期使用,基本上能满足地震前兆研究中水氡观测的需要。
The 768 digital water radonometer developed for telecom transmission seismic network can observe the continuous variation of radon concentration in groundwater. The instrument consists of secondary automatic continuous glass degassing device and pulse counter with CMOS integrated circuit, which is connected with the national telecommunication transmission earthquake Network connection with the observation results can be automatically transmitted to the analysis records center. The main performance of the instrument is: measurement range of 1 ~ 200 Aman, measurement sensitivity of 800 pulses / min / Eman, degassing efficiency> 50%, response time <5 minutes, the stability of ± 5%, the working environment temperature -15 ℃ ~ +45 ℃, humidity <90%, power consumption <20W. The instrument through various performance tests and long-term use, basically able to meet the needs of water radon observations in the study of earthquake precursors.