Application of a force feedback method using air jetting to hand position guidance

2021 ◽  
Vol 2021 (0) ◽  
pp. 1A1-H02
Author(s):  
Manabu OKUI ◽  
Takumi YASUI ◽  
Rie NISHIHAMA ◽  
Taro NAKAMURA
Keyword(s):  
Force Feedback ◽  
Hand Position ◽  
Feedback Method

DAYA TAHAN ROTAN YANG DIAWETKAN DENGAN CUKA KAYU GALAM TERHADAP SERANGAN BUBUK Dinoderus minutus Farb.

2010 ◽  
Vol 2 (2) ◽  
pp. 8
Author(s):  
Evy Setiawati
Keyword(s):  
Force Feedback ◽  
Test Results ◽  
Dry Powder ◽  
Degree Of Protection ◽  
Wood Vinegar ◽  
Dinoderus Minutus ◽  
Test Parameters ◽  
Feedback Method ◽  
Reduction Percentage ◽  
Insect Attack

Rattan on frequently attacked by the powder post beetle (Tellu, 2001). The prevention of dry powder attacks is done by preservation. The increasing resistant of rattan from insect attack can be done by an environmentally friendly preservative, the Galam wood vinegar. This research  aims to determine the most effective concentration of preservative that shows the lowest attacks level of D. Farb minutus powder. The rattan used is green rattan (Calamus sp.) The concentration of preservative that are used:10%, 40%, 70% and 100%. The testing of dry powder attack  used force feedback method. The effectiveness test parameters of wood vinegar to dry powder attacks  included degree of protection Dinoderus minutus Farb. powder,  reduction percentage of rattan weight and the mortality of dry powder Dinoderus sp for toxicological testing of wood vinegar. The test results showed that the degree of protection powder in rattan growing along with the increased concentration of preservatives. The higher the concentration of  wood vinegar, the smaller the reduction of rattan weight and the higher the mortality rate of dry powder. Keywords: resistant of rattan, wood vinegar, Dinoderus minutus.

1A1-I09 Force feedback method of relaying proprioception in telexistence systems

2008 ◽  
Vol 2008 (0) ◽  
pp. _1A1-I09_1-_1A1-I09_3
Author(s):  
Souichiro Fukamachi ◽  
Kouta Minamizawa ◽  
Kouichi Watanabe ◽  
Naoki Kawakami ◽  
Susumu Tachi
Keyword(s):  
Force Feedback ◽  
Feedback Method

scholarly journals Contact Force Control of Three-Dimensional Flexible Manipulator

2020 ◽  
Author(s):  
Minoru Sasaki ◽  
Shunta Ito ◽  
Daiki Maeno ◽  
Waweru Njeri ◽  
Muguro Josephh ◽  
...  
Keyword(s):  
Contact Force ◽  
Force Control ◽  
Degrees Of Freedom ◽  
Force Feedback ◽  
Three Dimensional ◽  
Flexible Manipulator ◽  
Force Tracking ◽  
Feedback Method ◽  
Three Degrees Of Freedom ◽  
Contact Force Control

This paper proposes a contact force controller for a constrained flexible manipulator in three-dimensional motion. This controller used the conversion formula obtained empirically and experimental results showed the effectiveness of the proposed contact force controller. First, the manipulator was operated with the tip of the second link restrained, then, time response of the root strain, joint angles and contact force were used to derive the relational between the three quantities. The effectiveness of the relational expression was verified by conducting a target contact force tracking experiment by inputting the angle from the relational expression. The contact force control using the strain feedback method was proposed with the strain amount estimated from the target contact force as the target value, and its effectiveness was verified by experiments. From the results obtained, controller using the strain feedback method was designed for the purpose of controlling the contact force at the tip of a flexible manipulator with two links and three degrees of freedom that performs three-dimensional spatial motion, and its effectiveness was shown by comparison with the contact force feedback method.

scholarly journals The Effect of Dissociation between Proprioception and Vision on Perception and Grip Force Control in a Stiffness Judgment Task

2018 ◽  
Author(s):  
Stephanie Hu ◽  
Raz Leib ◽  
Ilana Nisky
Keyword(s):  
Visual Feedback ◽  
Grip Force ◽  
Force Feedback ◽  
Judgment Task ◽  
Hand Position ◽  
Sensorimotor System ◽  
Mixed Effect ◽  
Sensory Modalities ◽  
Teleoperation Systems ◽  
Visual Delay

AbstractOur sensorimotor system estimates stiffness to form stiffness perception, such as for choosing a ripe fruit, and to generate actions, such as to adjust grip force to avoid slippage of a scalpel during surgery. We examined how temporal manipulation of the haptic and visual feedback affect stiffness perception and grip force adjustment during a stiffness discrimination task. We used delayed force feedback and delayed visual feedback to break the natural relations between these modalities when participants tried to choose the harder spring between pairs of springs. We found that visual delay caused participants to slightly overestimate stiffness while force feedback delay caused a mixed effect on perception; for some it caused underestimation and for some overestimation of stiffness. Interestingly and in contrast to previous findings without vision, we found that participants increased the magnitude of their applied grip force for all conditions. We propose a model that suggests that this increase was a result of coupling the grip force adjustment to their proprioceptive hand position, which was the only modality which we could not delay. Our findings shed light on how the sensorimotor system combines information from different sensory modalities for perception and action. These results are important for the design of improved teleoperation systems that suffer from unavoidable delays.

Application of Surface Display into Shape Forming Task

1997 ◽  
Vol 9 (3) ◽  
pp. 185-192
Author(s):  
Koichi Hirota ◽  
◽  
Jun Saito ◽  
Michitaka Hirose ◽  
◽  
...  
Keyword(s):  
Force Feedback ◽  
Surface Display ◽  
Surface Force ◽  
Modeling Environment ◽  
Feedback Method

The sensation of Touch and force is generated or conducted through the phenomenon of contact. This fact make us aware of a new force feedback method, which was named the concept of Surface Display. In this concept, we are remarking not on the force between the user and the object but on the surface and existence of the object. The force feedback device based on this concept presents the surface of an object, the user interact with surface. Force is caused only as a result and it is measured by the device for the simulation of the behavior of the object. In this paper, the application of the device into a shape forming task is discussed. We have developed a kind of the virtual clay modeling environment, in which the shape of the surface can be changed by pushing directly on the surface. Sensation of making contact with the surface and the sensation of force caused by the elas ticity of the clay is fedback by using the device. From an experiment in the environment, the importance and effectiveness of force feedback were made clear.

System analysis of the force-feedback method for force curve measurements

1999 ◽  
Vol 70 (5) ◽  
pp. 2402-2407 ◽  
Author(s):  
Nobuhiro Kato ◽  
Hisao Kikuta ◽  
Takashi Nakano ◽  
Toshiro Matsumoto ◽  
Koichi Iwata
Keyword(s):  
System Analysis ◽  
Force Feedback ◽  
Force Curve ◽  
Feedback Method

Manipulating Virtual Objects With a Haptic Glove Based on Soft Pneumatic Muscles

2009 ◽  
Author(s):  
Jukka Kuusisto ◽  
Asko Ellman ◽  
Joonas Reunamo ◽  
Joonatan Kuosa
Keyword(s):  
Virtual Environments ◽  
Force Feedback ◽  
Haptic Feedback ◽  
Hand Position ◽  
Position Information ◽  
Data Glove ◽  
Virtual Objects ◽  
University Of Technology ◽  
Pneumatic Muscles ◽  
Magnetic Tracker

In mechanical engineering, hardware mock-ups are increasingly being replaced by virtual models. Virtual environments enable the testing of different designs with considerable savings on time and money. Haptic feedback helps the user in getting a realistic conception about the cabin dimensions and how different controls actually look and feel. The haptic interface must be convenient to use and give realistic feedback on the functioning of the controls. The haptic force-feedback glove “SPM Glove” with soft pneumatic muscles — SPMs for short — on the palm side has been developed at the Department of Mechanics and Design at Tampere University of Technology. The glove provides force feedback to the thumb, index, and middle fingertips. In this paper, the usability of the SPM Glove for grasping, moving, and comparing the size of virtual objects is investigated. For achieving finger position information, the SPM Glove was worn over a data glove. Hand position was tracked with a magnetic tracker. The results indicate that users find manipulating cylindrical objects easier, more comfortable, and more natural with force feedback provided by the SPM Glove than without it. Moreover, all test users managed to arrange three invisible virtual cylinders of different sizes in order of increasing thickness using the SPM Glove.

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