A Study on the Extraction of Balance Information based on the Biological Evolving Mechanism

基于生物进化机制的平衡信息提取研究

• 批准号: 08650312
• 负责人: OKADA Tokuji
• 金额: $ 1.6万
• 依托单位: Niigata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08650312/
• 关键词: Sensor of Balance; Magnetic Flux; Magnetic Potential; Spherical Vessel; Floating Board; Hall-Effect Device; Gauss Meter; Circular Permanent Magnet; Sensor of Balance; Magnetic Flux; Magnetic Potential; Spherical Vessel; Floating Board; Hall-E

This paper proposes a magnetic measurement principle to develop a balance sensor. Basically, the sensor is composed of a spherical vessel sealing certain amount of liquid, a mushroom-shaped float and a permanent magnet. The circular plated magnet is fixed on the root of the float stem. According as the liquid moves in the vessel, the float changes the position of the magnet. And the Hall effect devices located around the vessel sense the change of balance with the aid of a signal processor.At first, the density of the Hall effect devices and the algorithm for determining the direction of the resultant acceleration are considered. Also, the results of experiments for magnet's position and the angle of balance are shown. Then, the measurement error is analized since the magnet is free to move on the float in the vessel and the measurement error is caused not only by the position eror of the Hall-Effect device located at the vessel exterior, but also by the clearance betweeen the float an … More d the vessel interior. In particular, the errors produced by the changes of the float's height, position on the liquid surface. and inclination are investigated and calculated by supposing possible changes of the sensor parameters in the practical application.Finally, we extend the measurement principle so that we can sense not only the direction of acceleration but also the azimus in 3-D space. Basically, the sensor is composed of a spherical vessel filling a considerable amount of liquid, a mushroom-shaped float moving freely with a small clearance in the vessel, two permanent magnets fixed at the float's cap and stem, and Hall-effect devices located around the vessel exterior. We describe the structural mechanism of the sensor head and investigate the mathematical formulation to estimate the magnetic flux intensity sensed by the Hall devices, and also the signal processing algorithm for determining the magnet position as a common point of magnetic potential curves depicted by using the Hall output. The data of magnetic flux intensity obtained by calculation and experiment are compared to verify the validity of the measurement principle. The proposed method is effective in detecting all directions of the resultant acceleration of motion and gravity with uniform resolution, since the sensor has no rotation axes. Less

本文提出了一种磁测量原理，开发了一种平衡传感器，该传感器基本上由密封一定量液体的球形容器、蘑菇形浮子和固定在其根部的圆形板磁体组成。浮子杆随着液体在容器中移动，浮子改变磁铁的位置，位于容器周围的霍尔效应装置借助信号处理器感知平衡的变化。霍尔效应器件和确定方向的算法此外，还考虑了磁体位置和平衡角度的实验结果，然后分析了由于磁体在容器中的浮子上自由移动而引起的测量误差。位于容器外部的霍尔效应装置的位置误差，以及浮子和容器内部之间的间隙，特别是浮子高度、液体上位置的变化所产生的误差。表面和。通过假设实际应用中传感器参数可能发生的变化来研究和计算倾角。最后，我们扩展了测量原理，使得我们不仅可以感知加速度的方向，还可以感知3D空间中的方位角。基本上，传感器它由一个充满大量液体的球形容器、一个在容器中自由移动且间隙很小的蘑菇形浮子、固定在浮子帽和阀杆上的两个永磁体以及位于容器外部的霍尔效应装置组成。我们描述一下结构机制传感器头的结构和估计霍尔器件感测的磁通量强度的数学公式，以及用于确定磁体位置作为研究通过使用霍尔磁通量强度描绘的磁势曲线的公共点的信号处理算法。将计算结果与实验结果进行比较，验证了该测量原理的有效性，由于传感器没有旋转轴，因此该方法能够以均匀的分辨率有效地检测各个方向的运动和重力合成加速度。