Number vs voltage recording data set for Schumann's resonance analysis at 250 samples per second

In this study background environmental Schumann's resonance was recorded utilizing a portable coil antenna and detection circuit. The detection circuit was battery powered and enclosed in a metal box. 19mm PVC pipe and fittings were used to build a regular octagonal antenna frame with side length of 40cm. The coil antenna was oriented east to west and located at 10.66457701467502 degrees north latitude, 61.11573950258856 degrees west longitude in the northern range of Trinidad away from the 60Hz national electricity grid. 50 independent 35-minute data sets were obtained during the local time period of 09:30 AM to 6:30 PM on different days between the dates 20th February 2022 and 11th May 2022. These data sets were utilized to derive estimates of the first 4 Shumann's resonance frequency peaks. In addition, the input to the Schumann's resonance detection circuit used in this study was connected to ground and the corresponding noise output was recorded for 35 minutes at a sample frequency of 250 samples per second. This noise file is also included. The data files are labeled R1 to R50. A folder-note file is also included indicating the date that each data file was recorded.

本研究借助便携式线圈天线与检测电路，完成了背景舒曼共振（Schumann's resonance）的录制工作。该检测电路由电池供电，封装于金属盒内。研究人员采用19毫米聚氯乙烯（PVC）管材及管件，搭建了边长为40厘米的正八边形天线框架。线圈天线朝向东西向，布设点位位于特立尼达北部区域，地理坐标为北纬10.66457701467502度、西经61.11573950258856度，该区域远离60Hz制式的国家电网。在2022年2月20日至2022年5月11日期间的不同日期，于当地时间上午9:30至下午6:30时段内，采集得到50组独立的35分钟时长数据集。上述数据集被用于推导前4个舒曼共振频率峰值的估算结果。此外，本研究所用舒曼共振检测电路的输入端接入接地端，并以每秒250个采样点的采样率，录制了35分钟的对应噪声输出，该噪声文件亦包含于本数据集之中。所有数据文件均以R1至R50进行编号命名。数据集同时附带一份文件夹说明文件，用于标注每份数据文件的录制日期。