scholarly journals Multi-axis force sensing with pre-stressed resonant composite plates: An alternative to strain gauge force sensors

2014 ◽  
Author(s):  
Davinson Castano-cano ◽  
Mathieu Grossard ◽  
Arnaud Hubert
Keyword(s):  
Strain Gauge ◽  
Composite Plates ◽  
Force Sensing ◽  
Force Sensors

Force Sensing in Magnitude, Direction, and Position

1987 ◽  
Vol 109 (3) ◽  
pp. 286-290 ◽  
Author(s):  
K. F. Martin ◽  
H. Lockman
Keyword(s):  
Strain Gauge ◽  
Research Work ◽  
Force Sensing ◽  
Experimental Measurements ◽  
Dynamic Forces ◽  
Analogue To Digital ◽  
Force Characteristics

A sensing device is described which measures the magnitude, direction, and position of force in the plane of the sensor. The basic sensing method is by strain gauge bridges, the outputs of which are amplified and fed via Analogue to Digital (A/D) converters to a microcomputer for calculation of the force characteristics. The transducer system is shown to be capable of measuring quasi static forces; experimental measurements confirming the feasibility of the device. Further research work is planned to improve the accuracy of the system and to ascertain and improve its capability of measuring dynamic forces.

Design and Development of a 2-DOF Miniature Force Sensor for Surgical Procedures

2011 ◽  
Author(s):  
U-Xuan Tan ◽  
Jaydev P. Desai
Keyword(s):  
Surgical Procedures ◽  
Force Sensor ◽  
Force Sensing ◽  
Force Sensors ◽  
Design And Development ◽  
Tissue Interaction ◽  
Percutaneous Procedures ◽  
Surgical Tool ◽  
Microfabrication Technique

Force sensing is an important component for a number of surgical procedures as it can help to prevent undesirable damage to the tissue and at the same time provides the surgeons with a better “feel” of the tool-tissue interaction. However, most of the current commercially available multi-DOF force sensors are relatively large in size and it is a challenge to incorporate them into the surgical tool. Hence, a multi-DOF miniature force sensor is desired and this paper presents the design and development of a miniature 2-DOF force sensor. In order to achieve a miniature force sensor, microfabrication technique is used and the proposed force sensor is a capacitive-based sensor. The proposed force sensor can be used in a number of percutaneous procedures as well as catheter-based procedures. This paper presents the design and microfabrication process of the proposed miniature force sensor.

scholarly journals Anisotropy in mechanical unfolding of protein upon partner-assisted pulling and handle-assisted pulling

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Nisha Arora ◽  
Jagadish Prasad Hazra ◽  
Sabyasachi Rakshit
Keyword(s):  
Single Molecule ◽  
Complex Geometry ◽  
Protein Complexes ◽  
Dynamic Network ◽  
Force Sensing ◽  
Force Sensors ◽  
Mechanical Responses ◽  
End To End ◽  
Potential Energy Landscapes ◽  
Cadherin 23

AbstractProteins as force-sensors respond to mechanical cues and regulate signaling in physiology. Proteins commonly connect the source and response points of mechanical cues in two conformations, independent proteins in end-to-end geometry and protein complexes in handshake geometry. The force-responsive property of independent proteins in end-to-end geometry is studied extensively using single-molecule force spectroscopy (SMFS). The physiological significance of the complex conformations in force-sensing is often disregarded as mere surge protectors. However, with the potential of force-steering, protein complexes possess a distinct mechano-responsive property over individual force-sensors. To decipher, we choose a force-sensing protein, cadherin-23, from tip-link complex and perform SMFS using end-to-end geometry and handshake complex geometry. We measure higher force-resilience of cadherin-23 with preferential shorter extensions in handshake mode of pulling over the direct mode. The handshake geometry drives the force-response of cadherin-23 through different potential-energy landscapes than direct pulling. Analysis of the dynamic network structure of cadherin-23 under tension indicates narrow force-distributions among residues in cadherin-23 in direct pulling, resulting in low force-dissipation paths and low resilience to force. Overall, the distinct and superior mechanical responses of cadherin-23 in handshake geometry than single protein geometry highlight a probable evolutionary drive of protein-protein complexes as force-conveyors over independent ones.

Force sensing and its application in minimally invasive surgery and therapy: A survey

2010 ◽  
Vol 224 (7) ◽  
pp. 1435-1454 ◽  
Author(s):  
A L Trejos ◽  
R V Patel ◽  
M D Naish
Keyword(s):  
Minimally Invasive Surgery ◽  
Minimally Invasive ◽  
Invasive Surgery ◽  
Literature Search ◽  
Force Sensor ◽  
Alternative Methods ◽  
Force Sensing ◽  
Force Sensors ◽  
Haptic Information ◽  
The Impact

The reduced access conditions of minimally invasive surgery and therapy (MIST) impair or completely eliminate the feel of tool—tissue interaction forces. Many researchers have been working actively on the development of force sensors and sensing techniques to address this problem. The goal of this survey article is to summarize the state of the art in force sensing techniques for medical interventions in order to identify existing limitations and future directions. A literature search was performed from January to July 2009 using a combination of keywords relevant to the area, including force, sensor, sensing, haptics, and minimally invasive surgery. The literature search resulted in 126 articles with valuable content. This article presents a summary of the force sensing technologies, design specifications for force sensors in clinical applications, force sensors and sensing instruments that have been developed for MIST, and the experiments performed to determine the need for force information. Open areas of research include force sensor design, development of alternative methods of sensing, assessment of the impact of force information on performance, determination of the benefits of haptic information, and evaluation of the human factors involved in the processing and use of force information.

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