Broad-Band, Wide Dynamic Range Fiber-Optic Accelerometer System for Ground Motion Surveys

地震预报研究需要改进的、适合在地震台阵中广泛部署的可靠加速度计。为了响应这一需求，光学技术公司(Optech)提出了一种光纤加速度计系统，该系统提供了宽带、宽动态范围和低功耗的所需性能改进，以及其他显著优势和特性：o宽带响应(0.1赫兹至100赫兹)O宽动态范围(140至160分贝)低功耗坚固的结构(无移动部件)能在任何方向运行低维护成本O高可靠性(无活动部件)o高辐射耐受性(适用于核电站部署)o数字输出(第二阶段)

Improved reliable accelerometers suitable for wide deployment in seismic arrays are needed for earthquake prediction studies. In response to this need Optical Technologies, Inc. (OPTECH) is proposing a fiber-optic accelerometer system that provides the desired performance improvements of broad-band, wide dynamic range, and low power consumption, as well as other significant benefits and features: o Broad-band response ( 0.1 Hz to 100 Hz) o Wide dynamic range (on the order of 140 to 160 dB) o Low power consumption o Robust construction (no moving parts) o Capability to operate in any orientation o Low maintenance cost o High reliability (no moving parts) o High radiation tolerance (suitable for nuclear plant deployment) o Digital out (in Phase II)