scholarly journals A Novel Tilt and Acceleration Measurement System Based on Hall-Effect Sensors Using Neural Networks

2022 ◽  
Vol 2022 ◽  
pp. 1-13
Author(s):  
Majid Nour ◽  
Nihat Daldal ◽  
Mehmet Fatih Kahraman ◽  
Hatem Sindi ◽  
Adi Alhudhaif ◽  
...  

A tilt sensor is a device used to measure the tilt on many axes of a reference point. Tilt sensors measure the bending position according to gravity and are used in many applications. Slope sensors allow easy detection of direction or slope in the air. These tilt gauges have become increasingly popular and are being adapted for a growing number of high-end applications. As an example of practical application, the tilt sensor provides valuable information about an aircraft’s vertical and horizontal tilt. This information also helps the pilot understand how to deal with obstacles during flight. In this paper, Hall-effect effective inclination and acceleration sensor design, which makes a real-time measurement, have been realized. 6 Hall-effect sensors with analog output (UGN-3503) have been used in the sensor structure. These sensors are placed in a machine, and the hall sensor outputs are continuously read according to the movement speed and direction of the sphere magnet placed in the assembly. Hall sensor outputs produce 0–5 Volt analog voltage according to the position of the magnet sphere to the sensor. It is clear that the sphere magnet moves according to the inclination of the mechanism when the mechanism is moved angularly, and the speed of movement from one point to the other changes according to the movement speed. Here, the sphere magnet moves between the hall sensors in the setup according to the ambient inclination and motion acceleration. Each sensor produces analog output values in the range of 0–5 V instantaneous according to the position of the spheroid. Generally defined, according to the sphere magnet position and movement speed, the data received from the hall sensors by the microcontroller have been sent to the computer or microcomputer unit as UART. In the next stage, the actual sensor has been removed. The angle and acceleration values have been continuously produced according to the mechanism’s movement and output as UART. Thanks to the fact that the magnet is not left idle and is fixed with springs, problems such as vibration noises and wrong movements and the magnet leaning to the very edge and being out of position even at a slight inclination are prevented. In addition, the Hall-effect sensor outputs are given to an artificial neural network (ANN), and the slope and acceleration information is estimated in the ANN by training with the data obtained from the real-time slope and accelerometer sensor.

Author(s):  
Tingting Yin ◽  
Zhong Yang ◽  
Youlong Wu ◽  
Fangxiu Jia

The high-precision roll attitude estimation of the decoupled canards relative to the projectile body based on the bipolar hall-effect sensors is proposed. Firstly, the basis engineering positioning method based on the edge detection is introduced. Secondly, the simplified dynamic relative roll model is established where the feature parameters are identified by fuzzy algorithms, while the high-precision real-time relative roll attitude estimation algorithm is proposed. Finally, the trajectory simulations and grounded experiments have been conducted to evaluate the advantages of the proposed method. The positioning error is compared with the engineering solution method, and it is proved that the proposed estimation method has the advantages of the high accuracy and good real-time performance.


2019 ◽  
Vol 70 (5) ◽  
pp. 406-411
Author(s):  
Yavuz Öztürk ◽  
Ismail Yariçi

Abstract In this study, a simple, adjustable, bidirectional tilt sensor was designed using a pair of linear Hall effect sensors and magnets. Theoretical analysis and experimental results of the sensor system were presented. The working principle of the designed sensor is based on sensing the magnetic field of a mobile magnet which displaces with respect to the tilt angle. Two magnet sets were placed at the two ends of the system to apply repulsive restoring forces on the mobile magnet. The mobile magnet was coated with a light hydrocarbon based ferrofluid as a lubricant to reduce friction. Fixed Hall effect sensors were placed face to face at the two sides of the mobile magnet to monitor the magnetic field of the mobile magnet. It was shown that both experimentally and theoretically, it is possible to measure the approximate tilt angle linearly and quadratically by calculating the sum and difference of the Hall sensor voltages for the relatively small movements of the mobile magnet. Moreover, the system was also examined for the different sets of side magnets. For three different side magnet configurations, approximately 0.7, 1.1 and 1.68 V/rad sensitivity values were observed in the linear range.


Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1268
Author(s):  
Xi Zhang ◽  
Yiyun Zhao ◽  
Hui Lin ◽  
Saleem Riaz ◽  
Hassan Elahi

The Hall sensor is the most commonly used position sensor of the permanent magnet brushless direct current (PMBLDC) motor. Its failure may lead to a decrease in system reliability. Hence, this article proposes a novel methodology for the Hall sensors fault diagnosis and fault-tolerant control in PMBLDC motor drives. Initially, the Hall sensor faults are analyzed and classified into three fault types. Taking the Hall signal as the system state and the conducted MOSFETs as the system event, the extended finite state machine (EFSM) of the motor in operation is established. Meanwhile, a motor speed observer based on the super twisting algorithm (STA) is designed to obtain the speed signal of the proposed strategy. On this basis, a real-time Hall sensor fault diagnosis strategy is established by combining the EFSM and the STA speed observer. Moreover, this article proposes a Hall signal reconstruction strategy, which can generate compensated Hall signal to realize fault-tolerant control under single or double Hall sensor faults. Finally, theoretical analysis and experimental results validate the superior effectiveness of the proposed real-time fault diagnosis and fault-tolerant control strategy.


RSC Advances ◽  
2021 ◽  
Vol 11 (13) ◽  
pp. 7257-7270
Author(s):  
Hua Fan ◽  
Jiangming Wang ◽  
Quanyuan Feng ◽  
Qiang Hu ◽  
Siming Zuo ◽  
...  

Integrated magnetic Hall effect sensors have been widely used in people's lives over the past decades. They are still gaining enormous attention from researchers to establish novel applications, especially in biochemistry and biomedical healthcare.


2016 ◽  
Vol 817 ◽  
pp. 271-278 ◽  
Author(s):  
Anna Sibilska-Mroziewicz ◽  
Sławomir Czubaj ◽  
Edyta Ładyżyńska-Kozdraś ◽  
Krzysztof Sibilski

This paper presents a new method of non-contact measurement and control of the magnetic field strength. The article discusses at first magnetic levitation phenomena and commercial Mag-Lev suspensions systems. Then it explains the Hall effect physics and example use of Hall effect sensor in educational magnetic levitation device. Next it lists some example constructions of Hall effect sensors. Finally it reveals potential new use of Hall-sensor in control system of unmanned aircraft catapult using Meissner effect.


Author(s):  
Harris Kristanto ◽  
Prathamesh Sathe ◽  
Alexander Schmitz ◽  
Chincheng Hsu ◽  
Tito Pradhono Tomo ◽  
...  

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