Design and characterization of a silicon piezoresistive three-axial force sensor for micro-flapping wing MAV applications

2015 ◽  
Author(s):  
Wei Zhang ◽  
Van T. Truong ◽  
Kim B. Lua ◽  
A. S. Kumar ◽  
Tee Tai Lim ◽  
...  
Keyword(s):  
Axial Force ◽  
Force Sensor ◽  
Flapping Wing

DEVELOPMENT AND CHARACTERIZATION OF A SILICON-BASED THREE AXIAL FORCE SENSOR

2005 ◽  
Author(s):  
F. VALVO ◽  
P. VALDASTRI ◽  
S. ROCCELLA ◽  
L. BECCAI ◽  
A. MENCIASSI ◽  
...  
Keyword(s):  
Axial Force ◽  
Force Sensor ◽  
Silicon Based

Design and characterization of a novel, robust, tri-axial force sensor

2013 ◽  
Vol 192 ◽  
pp. 101-110 ◽  
Author(s):  
Péter Baki ◽  
Gábor Székely ◽  
Gábor Kósa
Keyword(s):  
Axial Force ◽  
Force Sensor

Characterization of a novel hybrid silicon three-axial force sensor

2005 ◽  
Vol 123-124 ◽  
pp. 249-257 ◽  
Author(s):  
P. Valdastri ◽  
S. Roccella ◽  
L. Beccai ◽  
E. Cattin ◽  
A. Menciassi ◽  
...  
Keyword(s):  
Axial Force ◽  
Force Sensor ◽  
Hybrid Silicon

Development of a Novel Micro-Gripper Integrating Tri-Axial Force Sensor

2007 ◽  
Author(s):  
Jiachou Wang ◽  
Weibin Rong ◽  
Lining Sun ◽  
Hui Xie ◽  
Wei Chen
Keyword(s):  
Axial Force ◽  
Crystalline Silicon ◽  
Force Sensor ◽  
Calibration Method ◽  
Deep Reactive Ion Etching ◽  
Micro Gripper ◽  
The Cross ◽  
Silicon Frame ◽  
High Level ◽  
Cross Structure

A novel micro gripper integrating tri-axial force sensor and two grades displacement amplifier is presented in this paper, which bases on the technology of Piezoresistive detection and use PZT as its micro driving component. The micro tri-axial force sensor is fabricated on a single-crystalline-silicon by the technology of MEMS and consists of a flexible cross-structure realized by deep reactive ion etching (DRIE). The arms of the cross-structure are connected to a silicon frame and to the central part of the cross-structure. After modeling the amplifier structure of micro gripper and the sensor, finite element method (FEM) is used to analyze the displacement of the micro gripper and the deformation of the cross-structure elastic cantilever. A calibration method of tri-axial sensor based on the technology of microscopic vision and the principle of bending deflection cantilever is proposed. The experimental verified that the sensor are high level of intrinsic decoupling of the signals from strain gauge, high resolutions in all three axes, high linearity and repeatability and simple produce of calculation. And also show the micro gripper is reasonable and practical. The sensor is capable of resolving forces up to 10mN with resolution of 2.4μN in x axis and y axis and up to 10mN with resolution of 4.2μN in z axis; the gripping displacement of the micro gripper is from 20μm to 300μm.

Performance Characterization of Multifunctional Wings With Integrated Solar Cells for Unmanned Air Vehicles

2014 ◽  
Author(s):  
Ariel Perez-Rosado ◽  
Adrian G. J. Griesinger ◽  
Hugh A. Bruck ◽  
Satyandra K. Gupta
Keyword(s):  
Solar Cells ◽  
Flapping Wing ◽  
Image Correlation ◽  
Unmanned Air Vehicles ◽  
University Of Maryland ◽  
Battery Power ◽  
Cell Test ◽  
The University ◽  
Air Vehicles

Flapping wing unmanned air vehicles (UAVs) are small light weight vehicles that typically have short flight times due to the small size of the batteries that are used to power them. During longer missions, the batteries must be recharged. The lack of nearby electrical outlets severely limits the locations and types of missions that these UAVs can be flown in. To improve flight time and eliminate the need for electrical outlets, solar cells can be used to harvest energy and charge/power the UAV. Robo Raven III, a flapping wing UAV, was developed at the University of Maryland and consists of wings with integrated solar cells. This paper aims to investigate how the addition of solar cells affects the UAV. The changes in performance are quantified and compared using a load cell test as well as Digital Image Correlation (DIC). The UAV platform reported in this paper was the first flapping wing robotic bird that flew using energy harvested from on-board solar cells. Experimentally, the power from the solar cells was used to augment battery power and increase operational time.

A Novel Bi-Stable Force Sensor: Theory and Modeling

2009 ◽  
Author(s):  
Pezhman A. Hassanpour ◽  
Patricia M. Nieva ◽  
Amir Khajepour
Keyword(s):  
Analytical Model ◽  
Axial Force ◽  
Applied Voltage ◽  
Electrostatic Force ◽  
Force Sensor ◽  
Time Response ◽  
Constant Rate ◽  
New Type ◽  
Linear And Nonlinear ◽  
Theory And Modeling

In this paper, a novel sensing mechanism is introduced. This mechanism consists of a clamped-clamped beam and two parallel electrodes. An analytical model of the system, that takes into account the mechanical linear and nonlinear stiffnesses as well as the nonlinear electrostatic force, is developed. The time response of the system to a disturbance is derived while the applied voltage is increasing at a constant rate. It has been shown that the voltage, that destabilize the beam, can be used as a measure of the axial force in the beam. This technique can be used in the development of new type of sensors.

Sign in / Sign up

Export Citation Format

Share Document