关键词:加速度计;光探测器;原子干涉仪;ATV(全地形车)
摘 要:The unparalleled accuracies of accelerometers, gyroscopes and gravity sensors based on light-pulse atom interferometry methods hold great promise for a broad range of demanding military and commercial applications in navigation and geophysical exploration. Previous atom optic (AO) sensor development efforts have validated the technology for high-accuracy applications. This program assessed the suitability of the technology for navigation-grade sensors operating on Army platforms. First, we developed a preliminary design for a single-axis AO accelerometer for use on an Army all- terrain vehicle (ATV). Various trade studies guided the mechanical, optical, electrical and operational designs of the accelerometer. Sensitivity and error models predicted that the Army accelerometer would meet the specified performance objectives. We experimentally tested innovative technologies that could potentially simplify the accelerometer design. More refined simulations informed the final selection of the techniques for generating cold atoms in sensors operating on moving platforms. Based on the results of the preceding analysis and the technology validation studies, we iterated the accelerometer design and supported a critical design review for the Army accelerometer. Future efforts should build and test the prototype accelerometer.