Analyzes the characteristics of vortex signal, designs a differential charge amplifier with gain adaptive function, and analyzes its operational principle.
分析了涡街流量信号的特点，设计了增益自适应差动电荷放大器并介绍了它的工作原理。
The size of the hollow core of vortex beam has close relationship with the topological charge.
涡旋光束的空心大小与光束的拓扑荷数有密切关系。
The multi-vortex beam with identical topological charge presents rotation, which can be suppressed by changing the sign of the topological charge alternately.
具有相同拓扑荷的多重涡旋光束表现出旋转现象，但交替改变拓扑荷的符号可以压制该旋转现象。
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