Guide to the Literature of Piezoelectricity and Pyroelectricity. 23

Lang, Sidney B.

doi:10.1080/00150190500259707

Cited by 22 publications

(18 citation statements)

References 1,870 publications

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“…69 Piezoelectric materials are used, for example, for production of disposable patient monitors, ultrasonic imaging, and MR-compatible devices. 123 Actuators based on the piezoelectric principle have been developed and applied commercially. 53,54,124,125 For instance, aluminum housing for the piezoelectric ceramic was made; however, smaller components were made of brass and titanium to meet the requirements of MR-compatibility.…”

Section: Selection Of Proper Actuation and Sensory Systemsmentioning

confidence: 99%

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Challenges in developing a magnetic resonance–compatible haptic hand-controller for neurosurgical training

Maddahi

Zareinia

Tomanek

et al. 2018

Proc Inst Mech Eng H

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A haptic device is an actuated human-machine interface utilized by an operator to dynamically interact with a remote environment. This interaction could be virtual (virtual reality) or physical such as using a robotic arm. To date, different mechanisms have been considered to actuate the haptic device to reflect force feedback from the remote environment. In a low-force environment or limited working envelope, the control of some actuation mechanisms such as hydraulic and pneumatic may be problematic. In the development of a haptic device, challenges include limited space, high accuracy or resolution, limitations in kinematic and dynamic solutions, points of singularity, dexterity as well as control system development/design. Furthermore, the haptic interface designed to operate in a magnetic resonance imaging environment adds additional challenges related to electromagnetic interference, static/variable magnetic fields, and the use of magnetic resonance-compatible materials. Such a device would allow functional magnetic resonance imaging to obtain information on the subject's brain activity while performing a task. When used for surgical trainees, functional magnetic resonance imaging could provide an assessment of surgical skills. In this application, the trainee, located supine within the magnet bore while observing the task environment on a graphical user interface, uses a low-force magnetic resonance-compatible haptic device to perform virtual surgical tasks in a limited space. In the quest to develop such a device, this review reports the multiple challenges faced and their potential solutions. The review also investigates efforts toward prototyping such devices and classifies the main components of a magnetic resonance-compatible device including actuation and sensory systems and materials used.

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Section: Selection Of Proper Actuation and Sensory Systemsmentioning

confidence: 99%

“…69 Piezoelectric materials are used, for example, for production of disposable patient monitors, ultrasonic imaging, and MR-compatible devices. 123…”

Section: Technical Considerations In Designing Mr-compatible Hhcmentioning

confidence: 99%

Challenges in developing a magnetic resonance–compatible haptic hand-controller for neurosurgical training

Maddahi

Zareinia

Tomanek

et al. 2018

Proc Inst Mech Eng H

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“…For example, techniques of utilizing soft actuators are being actively studied, and discussion and cooperation among researchers are being promoted regarding their properties and applications 1, 2. Also, the study of piezoelectric polymers has bright prospects 3–7. In particular, the study of the piezoelectricity of chiral polymers is promising.…”

Section: Introductionmentioning

confidence: 99%

“…Chiral polymers with molecular chains consisting of chiral molecules that form a helical structure have recently become of major interest because they exhibit very distinct characteristics depending on the particular chiral molecules 4–12. For example, the well‐known ferroelectric polymer poly(vinylidene fluoride) (PVDF) exhibits highly tensile piezoelectricity; in contrast, a chiral polymer exhibits shear piezoelectricity 1–7. Furthermore, PVDF requires a poling treatment to realize piezoelectricity throughout an entire polymer membrane 1, 3, 4, 6.…”

Section: Introductionmentioning

confidence: 99%

“…For example, the well‐known ferroelectric polymer poly(vinylidene fluoride) (PVDF) exhibits highly tensile piezoelectricity; in contrast, a chiral polymer exhibits shear piezoelectricity 1–7. Furthermore, PVDF requires a poling treatment to realize piezoelectricity throughout an entire polymer membrane 1, 3, 4, 6. However, the poling of PVDF having a complex shape is very difficult.…”

Section: Introductionmentioning

confidence: 99%

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New design of actuator using shear piezoelectricity of a chiral polymer, and prototype device

Sawano

Tahara

Orita

et al. 2010

Polymer International

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Chiral polymers have been known to exhibit small shear piezoelectricity for about fifty years. However, recently, we reported that poly(L-lactic acid) treated with supercritical carbon dioxide (sc-PLLA), which is a type of chiral polymer, exhibits much higher shear piezoelectricity than other chiral polymers. On the other hand, we found an important difference between motion due to shear piezoelectricity and that due to tensile piezoelectricity in piezoelectric materials through computer simulations. On the basis of these results, we fabricated a new type of electrically controlled tweezers constructed from a pair of sc-PLLA sheets with shear piezoelectricity. In general, when conventional tweezers open to the left and right, the trajectory of their motion becomes fanlike at the center of the connection (one end of the tweezers). In the new tweezers, the two small sheets making up the tweezers open parallel to each other, without the motion of parts near the connection. Moreover, a prototype 'finger' system using sc-PLLA sheets to realize complex motion in which the finger curled upon stretching of the sc-PLLA sheets was manufactured as a trial device. Using the prototype finger system, we demonstrated the firm grasping of a sample, but the sample could not be removed from a vessel. Thus, sc-PLLA increases the likelihood of realizing a device with highly operational pick-up in a very small region by using the shear piezoelectricity of a chiral polymer.

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Poly(lactic acid) for Sensing Applications

Tajitsu

2017

Industrial Applications of Poly(lactic Acid)

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Guide to the Literature of Piezoelectricity and Pyroelectricity. 23

Cited by 22 publications

References 1,870 publications

Challenges in developing a magnetic resonance–compatible haptic hand-controller for neurosurgical training

Challenges in developing a magnetic resonance–compatible haptic hand-controller for neurosurgical training

New design of actuator using shear piezoelectricity of a chiral polymer, and prototype device

Poly(lactic acid) for Sensing Applications

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