Multi-channel data acquisition system with absolute time synchronization
Multi-channel data acquisition system with absolute time synchronization
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DOI：
10.1016/j.nima.2014.05.126
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发表时间：
2013-11
影响因子：
1.4
通讯作者：
P. Wlodarczyk;S. Pustelny;D. Budker;M. Lipi'nski
中科院分区：
文献类型：
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作者：
P. Wlodarczyk;S. Pustelny;D. Budker;M. Lipi'nski
我们提出了一个低成本，独立的全球时间同步数据采集系统。我们的原型允许记录多达四个模拟信号，在可变范围内具有16位分辨率，最大采样率为1000 S/s。该系统同时获取外部传感器的读数，例如磁力计或温度计。完整的数据集，包括包含时间戳的报头，存储在安全数字（SD）卡上或使用通用串行总线（USB）传输到计算机。数据采集的估计时间精度优于±200 ns。该设备旨在用于全球光学磁力计网络（用于奇异物理学的全球光学磁力计网络- GNOME），该网络旨在搜索预示标准模型之外的物理学的信号，这些信号可以通过普通自旋耦合到奇异粒子或异常自旋相互作用产生。
We present a low-cost, stand-alone global-time-synchronized data acquisition system. Our prototype allows recording up to four analog signals with a 16-bit resolution in variable ranges and a maximum sampling rate of 1000 S/s. The system simultaneously acquires readouts of external sensors e.g. magnetometer or thermometer. A complete data set, including a header containing timestamp, is stored on a Secure Digital (SD) card or transmitted to a computer using Universal Serial Bus (USB). The estimated time accuracy of the data acquisition is better than ±200 ns. The device is intended for use in a global network of optical magnetometers (the Global Network of Optical Magnetometers for Exotic physics – GNOME), which aims to search for signals heralding physics beyond the Standard Model, that can be generated by ordinary spin coupling to exotic particles or anomalous spin interactions.