Test and Evaluation of High Performance Micro Electro-Mechanical System Based Inertial Measurement Units

2006 ◽  
Author(s):  
S.J. Pethel
Keyword(s):  
Mechanical System ◽  
High Performance ◽  
Micro Electro Mechanical System ◽  
Inertial Measurement Units ◽  
Inertial Measurement ◽  
Test And Evaluation ◽  
Measurement Units

scholarly journals Auto-Correction of 3D-Orientation of IMUs on Electric Bicycles

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 589
Author(s):  
Jan Schnee ◽  
Jürgen Stegmaier ◽  
Tobias Lipowsky ◽  
Pu Li
Keyword(s):  
Barometric Pressure ◽  
Micro Electro Mechanical System ◽  
High Accuracy ◽  
Inertial Measurement Units ◽  
Inertial Measurement ◽  
Electric Bicycle ◽  
Measurement Units ◽  
Electric Bicycles ◽  
Mems Imu ◽  
2D And 3D

The application of inertial measurement units (IMU) in electronically power-assisted cycles (EPACs) has become increasingly important for improving their functionalities. One central issue of such an application is to calibrate the orientation of the IMU on the EPAC. The approach presented in this paper utilizes common bicycling motions to calibrate the 2D- and 3D-mounting orientation of a micro-electro-mechanical system (MEMS) IMU on an electric bicycle. The method is independent of sensor biases and requires only a very low computation expense and, thus, the estimation can be realized in real-time. In addition, the acceleration biases are estimated using a barometric pressure sensor. The experimental results show high accuracy of the calibrated orientation and estimated sensor biases.

Hybrid package for high performance Inertial Measurement Units

2020 ◽  
Author(s):  
Marco Del Sarto ◽  
Alex Gritti ◽  
Douglas Lodgson ◽  
David Cheng ◽  
Nicolo' Manca ◽  
...  
Keyword(s):  
High Performance ◽  
Inertial Measurement Units ◽  
Inertial Measurement ◽  
Measurement Units

scholarly journals An Examination of the Biomechanics of the Cross, Hook and Uppercut between Two Elite Boxing Groups

Proceedings ◽  
2020 ◽  
Vol 49 (1) ◽  
pp. 61
Author(s):  
Daniel Dinu ◽  
Benjamin Millot ◽  
Jean Slawinski ◽  
Julien Louis
Keyword(s):  
High Performance ◽  
Linear Velocity ◽  
Inertial Measurement Units ◽  
Inertial Measurement ◽  
Maximal Force ◽  
Measurement Units ◽  
Force Velocity ◽  
The Cross

In boxing, an efficient punch requires a combination of force, velocity and stability of the athlete. Being able to monitor these parameters has the potential to better inform training practices required to reach high performance. Hence, the aim of this study was to investigate the differences in punching execution between two groups of elite boxers (senior vs. junior) using three biomechanical indicators of performance in boxing. Each athlete was equipped with an instrumented suit composed of 17 inertial measurement units (IMU) and were asked to perform several series of punches with 3 standardized punching techniques (cross, hook and uppercut) on a punching bag with maximal force. Linear velocity, stability and punch forces were computed from the different sensors. Our findings show that senior boxers systematically produced more force and at a higher velocity for the three punching techniques compared to juniors. The IMU analysis also reveals differences of joint contributions between seniors and juniors, juniors presenting a higher contribution of the shoulder for the three punching techniques.

scholarly journals Analysis of ergonomic and unergonomic human lifting behaviors by using Inertial Measurement Units

2017 ◽  
Vol 3 (1) ◽  
pp. 7-10 ◽  
Author(s):  
Jan Kuschan ◽  
Henning Schmidt ◽  
Jörg Krüger
Keyword(s):  
Quality Of Life ◽  
Machine Learning ◽  
Angular Velocity ◽  
Musculoskeletal System ◽  
Occupational Diseases ◽  
Inertial Measurement Units ◽  
Inertial Measurement ◽  
Measurement Units ◽  
Main Components

Abstract:This paper presents an analysis of two distinct human lifting movements regarding acceleration and angular velocity. For the first movement, the ergonomic one, the test persons produced the lifting power by squatting down, bending at the hips and knees only. Whereas performing the unergonomic one they bent forward lifting the box mainly with their backs. The measurements were taken by using a vest equipped with five Inertial Measurement Units (IMU) with 9 Dimensions of Freedom (DOF) each. In the following the IMU data captured for these two movements will be evaluated using statistics and visualized. It will also be discussed with respect to their suitability as features for further machine learning classifications. The reason for observing these movements is that occupational diseases of the musculoskeletal system lead to a reduction of the workers’ quality of life and extra costs for companies. Therefore, a vest, called CareJack, was designed to give the worker a real-time feedback about his ergonomic state while working. The CareJack is an approach to reduce the risk of spinal and back diseases. This paper will also present the idea behind it as well as its main components.

scholarly journals Inertial measurement units to estimate drag forces and power output during standardised wheelchair tennis coast-down and sprint tests

2021 ◽  
pp. 1-19
Author(s):  
Thomas Rietveld ◽  
Barry S. Mason ◽  
Victoria L. Goosey-Tolfrey ◽  
Lucas H. V. van der Woude ◽  
Sonja de Groot ◽  
...  
Keyword(s):  
Power Output ◽  
Inertial Measurement Units ◽  
Inertial Measurement ◽  
Drag Forces ◽  
Measurement Units
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