Full Text:   <941>

Summary:  <174>

CLC number: TN965

On-line Access: 2017-10-25

Received: 2016-01-21

Revision Accepted: 2016-05-01

Crosschecked: 2017-09-25

Cited: 0

Clicked: 1860

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Rui Weng

http://orcid.org/0000-0003-3830-7385

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Frontiers of Information Technology & Electronic Engineering  2017 Vol.18 No.9 P.1430-1436

http://doi.org/10.1631/FITEE.1600035


Ball-disk rotor gyroscope adaptive quick-start technique


Author(s):  Xiao-wei Liu, Rui Weng, Hai Li, Hai-feng Zhang

Affiliation(s):  MEMS Center, Harbin Institute of Technology, Harbin 150001, China; more

Corresponding email(s):   hit00@126.com

Key Words:  Rotor gyroscope, Magnetically driven, Quick start, Piecewise algorithm, Closed-loop control


Xiao-wei Liu, Rui Weng, Hai Li, Hai-feng Zhang. Ball-disk rotor gyroscope adaptive quick-start technique[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(9): 1430-1436.

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Abstract: 
Rotating speed is a critical parameter affecting the performance of rotor gyroscopes. rotor gyroscopes must operate at the rated rotating speed. To shorten the start time of the ball-disk rotor gyroscope, this paper presents a new design of the drive system for a ball-disk rotor gyroscope. The drive system is monitored by a microcontroller. First, the microcontroller generates a sine pulse width modulation signal to drive the permanent magnet rotor. Second, the position of the rotor is detected according to the back electromotive force in the non-energized coil. Third, a piecewise closed-loop control algorithm is implemented to keep the angular acceleration of the rotor within the safe range automatically during the acceleration process and when running at a constant speed. This control algorithm can avoid rotor stalling due to loss of steps. Experimental result shows that with the help of adaptive quick-start technique, the start time of the device can be shortened by up to 36.6%.

球碟转子式微陀螺自适应快速启动技术

概要:转速是影响转子式微陀螺性能的关键因素,因此转子式微陀螺必须工作在较高转速下。为缩短转子式微陀螺的启动时间,提出了一种适用于球碟转子式微陀螺的新型驱动系统。该系统以微控制器为核心。首先,微控制器作为正弦脉冲宽度调制信号发生器,产生驱动永磁转子旋转的驱动磁场。其次,利用反电动势检测方法,通过检测转子在空闲驱动线圈中感应的反电动势,判定转子实时位置。之后,运用微控制器中的控制算法,保证转子在加速过程中加速度始终处于安全范围,并在达到设定转速时保证转子恒速运行。利用该控制算法,可以预防系统运行中出现失步现象而导致转子停转。实验结果表明,在自适应快速启动技术支持下,该器件启动速度可以提高36.6%。

关键词:转子式陀螺;电磁驱动;快速启动;分时复用算法;闭环控制

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