High-precision attitude angle measuring system based on Talbot interferometry

2017 ◽  
Author(s):  
Juan Du ◽  
Jian Bai ◽  
Xiao Huang ◽  
Yujie Luo ◽  
Yupeng Luo
Keyword(s):  
High Precision ◽  
Measuring System ◽  
Attitude Angle ◽  
Angle Measuring ◽  
Talbot Interferometry

An Angle Measuring System for Knife Blade Based on Laser and Electronic Clinometer

2011 ◽  
Vol 339 ◽  
pp. 80-83
Author(s):  
Fen Ju An ◽  
Yu Jun Feng ◽  
Zhong Ming Tan ◽  
Wen Qing Shi ◽  
Zheng Ye Xiong ◽  
...  
Keyword(s):  
High Precision ◽  
Low Cost ◽  
Measuring System ◽  
Practical Application ◽  
Blade Angle ◽  
Angle Measuring ◽  
Knife Blade ◽  
Easy Operation

In order to measure the knife blade angle, which has a great impact on sharpness and sharpness retentivity of knives and scissors, an angle measuring system for knife blade based on laser and electronic clinometer is presented. Practical running and testing proved the system's feasibility, reliability and great value in practical application. Meanwhile, the system has many advantages, such as easy operation, low cost, high precision, small errors, non-contact, etc.

An Opto-Electronic Integrated Non-Contact Angle Measuring System for Knife Blade Angle

2011 ◽  
Vol 317-319 ◽  
pp. 1016-1019
Author(s):  
Wen Qing Shi ◽  
Yu Jun Feng ◽  
Wen Hua Wang ◽  
Yong Qiang Li ◽  
Cun You Huang ◽  
...  
Keyword(s):  
Contact Angle ◽  
Cost Saving ◽  
High Precision ◽  
Measuring System ◽  
Blade Angle ◽  
Laser Technology ◽  
Angle Measuring ◽  
Knife Blade ◽  
Safety And Stability ◽  
Operation Cost

in order to measure knife blade angle, which has a serious influence on the sharpness and sharpness retentivity of knives and scissors, a knife blade angle measuring system based on electronics and laser technology is established. This system has many advantages such as a high precision (±1°), convenient and simple operation, cost saving, non-contact, safety and stability, etc. The system is very helpful to improve the product qualities of knives and scissors.

Noncontact Angle Measuring System Based on Laser and Capacitive Sensor

2011 ◽  
Vol 308-310 ◽  
pp. 469-472
Author(s):  
Yu Jun Feng ◽  
Zheng Ye Xiong ◽  
Yong Qiang Li ◽  
Cun You Huang ◽  
Wen Qing Shi ◽  
...  
Keyword(s):  
Real Time ◽  
High Precision ◽  
Capacitive Sensor ◽  
Measuring System ◽  
Blade Angle ◽  
Angle Measuring ◽  
On Line

Based on laser and capacitive sensor, a method of measuring deflectable angle is presented, and a noncontact angle measuring system is established. This system has the advantages of simple constitution, real-time, on-line measuring, non-contact and high precision. It can be widely used in engineering, especially in blade angle detection of knife and scissors.

Error Analysis of Attitude Angle Measuring System Based on Photoelectric Collimation and Virtual Extension Imaging

2011 ◽  
Vol 31 (1) ◽  
pp. 0112002
Author(s):  
江洁 Jiang Jie ◽  
王昊予 Wang Haoyu ◽  
张广军 Zhang Guangjun
Keyword(s):  
Error Analysis ◽  
Measuring System ◽  
Attitude Angle ◽  
Angle Measuring

Yaw Angle Measuring System of Omni-Directional Mobile Robot Based on EKF

2016 ◽  
Vol 835 ◽  
pp. 693-697
Author(s):  
Fang Jia ◽  
Yi Feng Ji
Keyword(s):  
Error Control ◽  
Inertial Sensor ◽  
Angular Rate ◽  
Micro Electro Mechanical System ◽  
Measuring System ◽  
Mems Sensor ◽  
Attitude Angle ◽  
Angle Measuring ◽  
Angle Data ◽  
Yaw Angle

For MEMS (Micro-Electro-Mechanical System) inertial sensor low precision, high noise and the characteristics of the gyroscope error accumulating, this paper designed a kind of yaw angle measuring system based on EKF (Extended Kalman Filter) by STM32 microcontroller and MEMS sensor. The EKF applys the attitude angle quaternion as the filter state variable, the angular rate as the filter time update. And application of the carrier location's gravitational field and geomagnetic data, complete filter measurement update, suppress divergent attitude error, obtain high accuracy and reliability of the attitude angle (pitch angle, roll angle, yaw angle) data. Experimental results show that the practical application of error control heading within ± 1º, with high practical value.

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