20 papers · ranked by Valyu relevance
Guangjun Liu, Feng Yang, Xiaofan Bao, Tao Jiang + 1 more
A robust optimization approach for a MEMS accelerometer to minimize the effects of temperature variations is presented. The mathematical model of the accelerometer is built. The effects of temperature variations on the output performance of the accelerometer are determined, and thermal deformation of the accelerometer…
Jae Keon Kim, Maeum Han, Shin-Won Kang, Seong Ho Kong + 1 more
'Daewoong Jung'] A thermal convection-based accelerometer was fabricated, and its characteristics were analyzed in this study. To understand the thermal convection of the accelerometer, the Grashof and Prandtl number equations were analyzed. This study conducted experiments to improve not only the sensitivity, but also…
Sara Stančin, Sašo Tomažič
We propose calibration methods for microelectromechanical system (MEMS) 3D accelerometers and gyroscopes that are efficient in terms of time and computational complexity. The calibration process for both sensors is simple, does not require additional expensive equipment, and can be performed in the field before or…
Akarapu Ashok, Adarsh Ganesan
—This paper presents a comprehensive analytical and simulation-based study of curved electrode geometries for enhancing the sensitivity of MEMS capacitive accelerometers. Expressions for the capacitance between a planar movable electrode and six distinct fixed electrode profiles (biconvex, biconcave, concavo-convex…
Aurelio Agliolo Gallitto, Lucia Lupo
In the recent literature, an increasing number of papers are devoted to the use of mobile media devices (smartphones, tablets, etc.) as laboratory tools for school physics experiments [1, 2, 3, 4], since they are usually equipped with several sensors that can be controlled by appropriate software (apps) [5]. Beside…
Hansong Zeng, Yi Zhao
Recognition of body posture and motion is an important physiological function that can keep the body in balance. Man-made motion sensors have also been widely applied for a broad array of biomedical applications including diagnosis of balance disorders and evaluation of energy expenditure. This paper reviews the…
Zakriya Mohammed, Ibrahim (Abe) M. Elfadel, Mahmoud Rasras
With the continuous advancements in microelectromechanical systems (MEMS) fabrication technology, inertial sensors like accelerometers and gyroscopes can be designed and manufactured with smaller footprint and lower power consumption. In the literature, there are several reported accelerometer designs based on MEMS…
S. Veena, Newton Rai, H L Suresh, Veda Sandeep Nagaraja
- This paper presents the design, simulation, and analytical modeling of the single proposed axis MEMSbased capacitive accelerometer. Analytical modeling has been done for frequency and displacement sensitivity. The performance of the accelerometer was tested for both static and dynamic conditions, and the…
Marta Karas, Jiawei Bai, Marcin Strączkiewicz, Jaroslaw Harezlak + 5 more
Wearable accelerometers provide detailed, objective, and continu-ous measurements of physical activity (PA). Recent advances in technology and the decreasing cost of wearable devices led to an explosion in the popula-rity of wearable technology in health research. An ever increasing number of studies collect…
Nozomi Nishiumi, Ayane Matsuo, Ryo Kawabe, Nicholas Payne + 3 more
Animal-borne accelerometers are effective tools for quantifying the kinematics of animal behaviors, such as swimming, running, and flying, under natural conditions. However, quantifying burst movements of small and agile aquatic animals (e.g., small teleost fish), such as during predatory behavior, or while fleeing…
Qiuping Wu, Ruonan Wu, Fengtian Han, Rong Zhang
As a specific force sensor, the tri-axis accelerometer is one of the core instruments in an inertial navigation system (INS). During navigation, its measurement error directly induces constant or alternating navigation errors of the same order of magnitude. Moreover, it also affects the estimation accuracy of gyro…
Max A. Little, Sami Volotinen, Brad Sanderson, Ulla Huopaniemi + 3 more
The modern ubiquity of smartphones which incorporate sensors such as inertial measurement units (IMU) and global positioning system (GPS) receivers, raises the possibility that they might be used as inexpensive devices for clinical performance testing. Here, we report on the development and testing of an app and…
Baptiste Garde, Rory P. Wilson, Adam Fell, Nik Cole + 10 more
Accelerometers in animal-attached tags have proven to be powerful tools in behavioural ecology, being used to determine behaviour and provide proxies for movement-based energy expenditure. Researchers are collecting and archiving data across systems, seasons and device types. However, in order to use data repositories…
Christopher Isaac Larnder, Brian Larade
A review of recent accelerometry experiments points to the need for a careful consideration of the question of where, exactly, the accelerometer sensor itself is located within the device that hosts the services required for its operation. We propose a simple measure for characterising the regime of experimental…
Darren Wilkinson, Adam Kane, Mark Jessopp, John L. Quinn
Biologging has transformed ecological research, yet studying the at-sea behaviour of small seabirds remains challenging due to trade-offs between device size and data resolution. Miniature GPS devices (<1 g) have been deployed on storm-petrels but their coarse temporal resolution limits behavioural classification…
Jing Zhang, N. Mokus, J. Casoli, Antonin Eddi + 1 more
field measurements Authors: ['Jing Zhang' 'N. Mokus' 'J. Casoli' 'Antonin Eddi' "St 'ephane Perrard"] Smartphones are widespread objects that have been used as physics sensors for the general public thanks to their availability, high connectivity and built-in sensors. Here, we present the use of a fleet of smartphones…
Yoshino Sugita, Gilles Clément
The acceleration of the head and hip along the x-, y-, and z-axis of 14 healthy subjects was recorded during two sessions of 12 consecutive hours. The magnitude, frequency content, and root mean square of the acceleration signals were used to determine the type of physical activity (sitting, standing, walking, etc.)…
William T. Conlin
Applications of inertial measurement units are extremely diverse, and are expected to see a further increase in number due to current trends in robotics as well as recent advances in Micro Electromechanical sensors (MEMS). The traditional method of inertial measurement has depended on costly, power-intensive…
Tomasz Ursel, Michał Olinski, Angelo Maria Sabatini
This article aims to develop a system capable of estimating the displacement of a moving object with the usage of a relatively cheap and easy to apply sensors. There is a growing need for such systems, not only for robots, but also, for instance, pedestrian navigation. In this paper, the theory for this idea, including…
Anandhu Suresh, Karnam Venkata Manga Raju
— Most of the advanced control systems use sensorbased feedback for robust control. Tilt angle estimation is key feedback for many robotics and mechatronics applications in order to stabilize a system. Tilt angle cannot be directly measured when the system in consideration is not attached to a stationary frame. it is…