Absorption analysis of a single microparticle by optical force measurement

2001 ◽  
Vol 89 (10) ◽  
pp. 5438-5441 ◽  
Author(s):  
Yasutaka Matsuo ◽  
Hidehisa Takasaki ◽  
Jun-ichi Hotta ◽  
Keiji Sasaki
Keyword(s):  
Force Measurement ◽  
Optical Force ◽  
Absorption Analysis

scholarly journals PUT-Hand—Hybrid Industrial and Biomimetic Gripper for Elastic Object Manipulation

Electronics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 1147
Author(s):  
Tomasz Mańkowski ◽  
Jakub Tomczyński ◽  
Krzysztof Walas ◽  
Dominik Belter
Keyword(s):  
Force Measurement ◽  
Reaction Force ◽  
Sensory System ◽  
Optical Force ◽  
Source Codes ◽  
Usb Communication ◽  
System Node ◽  
3D Printed ◽  
High Level ◽  
Elastic Object

In this article, the design of a five-fingered anthropomorphic gripper is presented specifically designed for the manipulation of elastic objects. The manipulator features a hybrid design, being equipped with three fully actuated fingers for precise manipulation, and two underactuated, tendon-driven digits for secure power grasping. For ease of reproducibility, the design uses as many off-the-shelf and 3D-printed components as possible. The on-board controller circuit and firmware are also presented. The design includes resistive position and angle sensors in each joint, resulting in full joint observability. The controller has a position-based controller integrated, along with USB communication protocol, enabling gripper state reporting and direct motor control from a PC. A high-level driver operating as a Robot Operating System node is also provided. All drives and circuitry of the PUT-Hand are integrated within the hand itself. The sensory system of the hand includes tri-axial optical force sensors placed on fully actuated fingers’ fingertips for reaction force measurement. A set of experiments is provided to present the motion and perception capabilities of the gripper. All design files and source codes are available online under CC BY-NC 4.0 and MIT licenses.

Design and testing of fibre Bragg grating force transducers for the measurement of pantograph–catenary contact force

2018 ◽  
Vol 233 (4) ◽  
pp. 396-409 ◽  
Author(s):  
Marco Bocciolone ◽  
Giuseppe Bucca ◽  
Andrea Collina ◽  
Lorenzo Comolli
Keyword(s):  
Contact Force ◽  
Force Measurement ◽  
Force Transducer ◽  
Optical Force ◽  
Bragg Grating ◽  
Fibre Bragg Grating ◽  
Fibre Optic ◽  
Design Development ◽  
Force Transducers ◽  
Set Up

This paper deals with the design, development and testing of a novel force transducer based on fibre-optic technology, for the measurement of contact force between a pantograph and an overhead line. Due to the particular application, in which part of the measurement chain is at high voltage and part is at ground potential, fibre-optic technology has the advantage of making the set-up easier to install and to manage with respect to the adoption of classical electrical-based transducers. Fibre Bragg grating is used as detectors in strain-based force transducers developed for this purpose. Considering that the force transducers become part of the connection between each collector of the pan head and the suspension, a proper design matching many conflicting requirements, such as encumbrance, mass, static and fatigue strength and sensitivity, is necessary. Laboratory tests and in-line tests proved the suitability of the optical force transducers. In particular, tests demonstrated that optical transducers represent an alternative to the classical electrical-based transducers for pantograph–catenary force measurement, reducing the complexity of the complete measurement set-up.

Video microscopy-based accurate optical force measurement by exploring a frequency-changing sinusoidal stimulus

2020 ◽  
Vol 59 (8) ◽  
pp. 2452
Author(s):  
Tan Xu ◽  
Shangquan Wu ◽  
Zhaoxiang Jiang ◽  
Xiaoping Wu ◽  
Qingchuan Zhang
Keyword(s):  
Force Measurement ◽  
Video Microscopy ◽  
Optical Force ◽  
Sinusoidal Stimulus

Optical force measurement system with mirror probe for nanoprobing inside a scanning electron microscope

2010 ◽  
Vol 87 (5-8) ◽  
pp. 1410-1412 ◽  
Author(s):  
Kai Arstila ◽  
Thomas Hantschel ◽  
Stephan Kleindiek ◽  
Jochen Sterr ◽  
Quentin Vaquette ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Measurement System ◽  
Force Measurement ◽  
Optical Force ◽  
Force Measurement System ◽  
Scanning Electron

Development of a Knee-gap Force Measurement Device to Evaluate Quantitative Lower Limb Muscular Strength of the Elderly

2010 ◽  
Vol 130 (2) ◽  
pp. 267-274 ◽  
Author(s):  
Kazuhiko Yamashita ◽  
Kazuya Imaizumi ◽  
Yumi Iwakami ◽  
Mitsuru Sato ◽  
Sawako Nakajima ◽  
...  
Keyword(s):  
Lower Limb ◽  
Muscular Strength ◽  
Force Measurement ◽  
The Elderly ◽  
Measurement Device
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