The experimental study of a precision parallel manipulator with binary actuation: With application to MRI cancer treatment

Tadakuma, Kenjiro; DeVita, Lauren M.; Plante, Jean‐Sébastien; Yan, Shaoze; Dubowsky, Steven

doi:10.1109/robot.2008.4543589

Cited by 34 publications

(27 citation statements)

References 10 publications

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“…Outside of biomimetics, DEs may still be of use in other human-related applications including refreshable Braille devices, [259,[281][282][283] hand-rehabilitation splints, [284] MRIcompatible machines, [246,[285][286][287] microfluidic devices, [288][289] force-feedback, [249] and wearable tactile interfaces. [283,290] Other potential applications include actuators for lighterthan-air vehicles, [291,292] tunable phononic crystals, [293][294][295] and variable phase retarders.…”

Section: De Actuator Applicationsmentioning

confidence: 99%

Advances in Dielectric Elastomers for Actuators and Artificial Muscles

Brochu¹,

Pei²

2009

Macromol. Rapid Commun.

1,241

1,130

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A number of materials have been explored for their use as artificial muscles. Among these, dielectric elastomers (DEs) appear to provide the best combination of properties for true muscle-like actuation. DEs behave as compliant capacitors, expanding in area and shrinking in thickness when a voltage is applied. Materials combining very high energy densities, strains, and efficiencies have been known for some time. To date, however, the widespread adoption of DEs has been hindered by premature breakdown and the requirement for high voltages and bulky support frames. Recent advances seem poised to remove these restrictions and allow for the production of highly reliable, high-performance transducers for artificial muscle applications.

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Section: De Actuator Applicationsmentioning

confidence: 99%

Advances in Dielectric Elastomers for Actuators and Artificial Muscles

Brochu¹,

Pei²

2009

Macromol. Rapid Commun.

1,241

1,130

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“…They serve as very efficient diagnostic methods to identify the tumors [13] and other structural deformations [14] and enable perfect tracing of the contours of the abnormalities [15]. This is of great assistance in surgical removal [16] of them, as it requires exact demarcation of the boundaries.…”

Section: B Applicationsmentioning

confidence: 99%

A Review on Image Reconstruction through MRI k-Space Data

Jhamb¹,

Rejathalal²,

Govindan³

2015

IJIGSP

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Abstract-Image reconstruction is the process of generating an image of an object from the signals captured by the scanning machine. Medical imaging is an interdisciplinary field combining physics, biology, mathematics and computational sciences. This paper provides a complete overview of image reconstruction process in MRI (Magnetic Resonance Imaging). It reviews the computational aspect of medical image reconstruction.

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“…The ideal actuator must be simple, lightweight, inexpensive and low-powered [3]. Some examples, already present in literature, show bistable mechanisms actuated by shape memory alloys (SMAs) [7], and dielectric elastomer actuators (DEAs) [8,9]. A SMA based mechanism has the advantage of maintaining compactness and lightness thanks to the high power density of the alloy, but a precise and reliable use of this technology is still subject of several ongoing studies.…”

Section: Introductionmentioning

confidence: 99%

Design of a compact bistable mechanism based on dielectric elastomer actuators

2015

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Bistable mechanisms are widely used in the applications where two stable positions must be held for long time without energy consumption. The main advantage of bistable mechanisms is a sensible reduction in bulkiness and energy cost. Among the possible active triggering systems, dielectric elastomer actuators (DEAs) are gaining attention, for their efficiency and strain rate, as a viable alternative to traditional technologies. In the present work, a novel design of a bistable system is proposed, counting on a cross-like shape bistable element coupled with two axially arranged conical DEAs. Analytical and FEM models have been used to implement and analyze the behavior of the single components and the final coupled system. The obtained results confirm the feasibility of the switching process between the equilibrium points and the capability to capture and numerically describe the interactions between the actuators and the bistable beams. A specific device has been finally envisaged to exemplify the possibility to develop a light-weight and compact system able to sustain and passively maintain a linear displacement which equals the 46 % of its own total length

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The experimental study of a precision parallel manipulator with binary actuation: With application to MRI cancer treatment

Cited by 34 publications

References 10 publications

Advances in Dielectric Elastomers for Actuators and Artificial Muscles

Advances in Dielectric Elastomers for Actuators and Artificial Muscles

A Review on Image Reconstruction through MRI k-Space Data

Design of a compact bistable mechanism based on dielectric elastomer actuators

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