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Development of a man-portable room-temperature gradiometer--phase II: portable and fieldable prototype

机译：便携式室温梯度仪的开发-第二阶段：便携式现场原型

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Abstract: In Phase II of a Small Business Innovation Research (SBIR) contract funded through the Office of Secretary of Defense (OSD), Quantum Magnetics is developing a fieldable room- temperature gradiometer (RTG). The RTG uses an innovative sensor configuration, called the three-sensor gradiometer (TSG), invented at IBM. The TSG affords unprecedented dynamic range that enables detection of signals near fluxgate sensor noise while the system is in motion int eh earth's field. Sensor enhancements undertaken in this Phase II program include: incorporation of ancillary sensors to enable gradiometer balancing in the presence of ambient field gradients; improved feedback linearity and use of a wideband reference fluxgate sensor to reduce motion noise; and improved filter matching between channels. Operational developments in progress include reduction of the sensor electronics package for man-portability and implementation of real-time operating and target localizing software. The Phase II system will be used for land-based operations to locate unexploded ordnance, and the sensor is being integrated with differential global position satellite navigation to locate targets in geographical coordinates. Separately funded programs will adapt the RTG for use by divers or AUVs in finding naval mines and obstacles. !2
机译：摘要：在由国防部长办公室（OSD）资助的小型企业创新研究（SBIR）合同的第二阶段，Quantum Magnetics正在开发一种可现场使用的室温梯度仪（RTG）。 RTG使用一种创新的传感器配置，称为IBM发明的三传感器梯度仪（TSG）。 TSG提供了前所未有的动态范围，可在系统处于大地运动状态时检测通量门传感器噪声附近的信号。在第二阶段计划中进行的传感器增强包括：合并辅助传感器，以在存在环境场梯度的情况下实现梯度计平衡；改善反馈线性度，并使用宽带参考磁通门传感器来减少运动噪声；并改善了通道之间的滤波器匹配。正在进行的操作开发包括减少用于便携性的传感器电子设备包，以及实施实时操作和目标定位软件。第二阶段系统将用于陆基作业，以定位未爆炸弹药，该传感器与差分全球定位卫星导航集成在一起，可在地理坐标中定位目标。单独资助的计划将使RTG适应潜水员或AUV在寻找海军​​地雷和障碍物时的使用。 ！2

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