相关实验视频
Updated: Jun 6, 2025

11:41
Magnetic Tweezers for the Measurement of Twist and Torque
Published on: May 19, 2014
23.2K
基于塔尔博特效应的高精度二维角度传感器
Liuxing Song1, Xiaoyong Wang2, Jinping He2
1College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
Sensors (Basel, Switzerland)
|November 27, 2024
概括
本研究介绍了一种新的3D打印格子方法,用于精确的二维角度传感. 它为高精度角测量提供了具有成本效益的解决方案,这对于机器人和光学对齐至关重要.
科学领域:
- 光学和光子学 在光学和光子学.
- 机械工程 机械工程
- 计量学 计量学 计量学
背景情况:
- 二维角感应对于导航,机器人和光学对齐至关重要.
- 现有的方法在平衡精度,动态范围和成本方面面临挑战.
研究的目的:
- 为高精度角测量引入一种新且具有成本效益的方法.
- 为了利用塔尔博特效应和3D打印用于角度传感.
主要方法:
- 使用3D打印技术制造一个格子原型.
- 在Talbot自成像位置检测振幅格子位移的检测.
- 应用频率过算法以提高准确度.
主要成果:
- 实现了0.4弧秒的检测分辨率.
- 显示动态范围超过1400弧秒.
- 通过模拟和物理实验验验证.
结论:
- 开发的方法为高精度角探测提供了具有成本效益的解决方案.
- 潜在的应用包括精密机械组装和光学对齐.
相关概念视频
Relating Angular And Linear Quantities - I
6.5K
If the rotational definitions are compared with the definitions of linear kinematic variables from motion along a straight line and motion in two and three dimensions, we can observe a mapping of the linear variables to the rotational ones.
When comparing the linear and rotational variables individually, the linear variable of position has physical units of meters, whereas the angular position variable has dimensionless units of radians, as it is the ratio of two lengths. The linear velocity...
When comparing the linear and rotational variables individually, the linear variable of position has physical units of meters, whereas the angular position variable has dimensionless units of radians, as it is the ratio of two lengths. The linear velocity...
6.5K
Relating Angular And Linear Quantities - II
5.4K
In the case of circular motion, the linear tangential speed of a particle at a radius from the axis of rotation is related to the angular velocity by the relation:
5.4K
Two-Dimensional Force System
873
A two-dimensional system in mechanical engineering involves the analysis of motion and forces in a plane. A two-dimensional force vector can be resolved into its components as:
873

