Design and implementation of electrostatic micro-actuators in ultrasonic frequency on a flexible substrate, PEN (polyethylene naphthalate)

Kim, S.; Zhang, X.; Daugherty, Robin; Lee, E.; Kunnen, George R.; Allee, David R.; Forsythe, Eric; Chae, Junseok

doi:10.1016/j.sna.2012.10.010

Cited by 11 publications

(8 citation statements)

References 22 publications

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“…35 flexible substrates in wearable sensors for health monitoring. 39 Most of the polymeric materials are soft, lightweight, RF-transparent, and low cost, and hence can address the current challenges associated with metallic and ceramic materials for implantable electronics. 40 Table 2 summarizes the list of applications of several important polymeric materials in flexible electronics.…”

Section: Materials Used For Wearable Health Care Devicesmentioning

confidence: 99%

“…In this respect, polyurethane, PDMS, polyethylene terephthalate, Ecoflex, and polyethylene naphthalate are the most commonly used flexible substrate in wearable sensors for health monitoring. 39 As most of the wearable health sensors are in connection with human skin, utilizing biocompatible materials is a vital issue. In this area, both inorganic piezoelectric materials (e.g., zinc oxide, lead zirconate titanate, and lithium niobate) and organic ones (e.g., poly-l-lactic acid, polyvinylidene fluoride, and poly-d-lactic acid) are biocompatible.…”

Section: Materials Used For Wearable Health Care Devicesmentioning

confidence: 99%

“…In this respect, polyurethane, polydimethylsiloxane (PDMS), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), and polyimide (PI) are most commonly used flexible substrates in wearable sensors for health monitoring. 39 Most of the polymeric materials are soft, lightweight, RF-transparent, and low cost, and hence can address the current challenges associated with metallic and ceramic materials for implantable electronics. 40 …”

Section: Materials Used For Wearable Health Care Devicesmentioning

confidence: 99%

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Advanced materials used in wearable health care devices and medical textiles in the battle against coronavirus (COVID-19): A review

Сабер

El-Aziz

2021

Journal of Industrial Textiles

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The novel coronavirus disease (COVID-19) has generated great confusion around the world, affecting people’s lives and producing a large number of deaths. The development of portable and wearable devices is of great importance in several fields such as point-of-care medical applications and environmental monitoring. Wearable devices with an ability to collect various types of physiological records are progressively becoming incorporated into everyday life of people. Physiological indicators are essential health indicators and their monitoring could efficiently enable early discovery of disease. This would also help decrease the number of extra severe health problems, in disease avoidance, and lower the overall public sector health cost. Protective clothing is nowadays a main part of textiles classified as technical or industrial textiles. Protective clothing aims to protect its wearer from the harsh environmental impacts that may result in injury or death. Providing protection for the common population has also been taken seriously considering the anticipated disaster due to virus attacks. This review highlights the properties of the materials that are used in wearable health care device and medical textiles.

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Section: Materials Used For Wearable Health Care Devicesmentioning

confidence: 99%

Section: Materials Used For Wearable Health Care Devicesmentioning

confidence: 99%

Section: Materials Used For Wearable Health Care Devicesmentioning

confidence: 99%

See 1 more Smart Citation

Advanced materials used in wearable health care devices and medical textiles in the battle against coronavirus (COVID-19): A review

Сабер

El-Aziz

2021

Journal of Industrial Textiles

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“…Limited by its working principle and mechanical structure, traditional linear motor is unable to meet the requirements of ultraprecision and high precision. Then, a variety of linear actuators, using new functional materials' physical effect, arise at the historic moment, which includes magnetostrictive actuator, electrostrictive actuator, electrostatic actuator, electrorheological actuator, 4 shape memory alloy actuator, piezoelectric actuator, and so on.…”

Section: Introductionmentioning

confidence: 99%

A piezoelectric inchworm actuator of linear type using symmetrical lever amplification

Xiao

Zhou

et al. 2014

Proceedings of the Institution of Mechanical Engineers, Part N:

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Piezoelectric inchworm actuators have a wide application in the field of nano-positioning and ultra-precision detecting instruments. Ultra-precision positioning equipments are urgently needed in the field of precision optics. A new piezoelectric linear actuator, based on inchworm motion principle, with a symmetry lever displacement amplification mechanism has been designed in this article. The whole structure adopts uniaxial-type double-notch right circular flexible hinge as its main hinges, which offers the driving part a larger displacement and makes clamping part have enough clamping force at the same time. High-precision cross roller guide ways are utilized to improve the positioning accuracy of the actuator. Both theoretical analysis and finite element analysis of clamping mechanism and driving mechanism have been carried out. An experimental test platform has been built, and a controlling program of the actuator is compiled by LabVIEW. The experimental results show that the working stroke of the actuator is 6 25 mm, resolution is 60 nm, the clamping force is 17 N, and the bearing capacity is 11 N; the actuator has a highest speed of 1.259 mm/s at the driving voltage 150 V.

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“…Among the challenges encountered in MOEMS when aiming for increased functionality is the local displacement. Nowadays commonly used micro-actuators are either electrostatic [6] or thermal [7]. There is, however, a growing use of piezoelectric actuators in MOEMS due to their better understanding, also to the new developments regarding hysteresis reduction and the emergence of new improved materials.…”

Section: Introductionmentioning

confidence: 99%

Actuated MOEMS Micro-Mirror Based on PMN PT Piezoelectric Material

Ciubotariu

Cleevy²,

Lutz³

et al. 2014

2014 International Symposium on Optomechatronic Technologies

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This paper investigates the use of a PMN-PT [001] piezoelectric actuator to be integrated in smart Micro-Opto-Electrical-Mechanicals Systems (MOEMS). Unlike most piezoelectric materials, PMN-PT [001] can generate large-stroke out-of-plane displacement. This is due to its very high longitudinal piezoelectric coefficient of up to 4500pm/V. After an introduction on MOEMS actuation and a short description of the Reconfigurable Free Space Micro-Optical Bench (RFS-MoB) in which the studied actuator may be included is presented, a bulk actuator is proposed. FEM simulations are then presented highlighting some tradeoffs: increased displacement with the reduction in size while decreasing the optical aberration. It was observed that for actuators with a smaller surface than 800x800µm 2 and 200µm thick, displacement larger than 325nm is largely achievable and that the size of the usable area of the actuator varies in size with the applied voltage. I.

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Design and implementation of electrostatic micro-actuators in ultrasonic frequency on a flexible substrate, PEN (polyethylene naphthalate)

Cited by 11 publications

References 22 publications

Advanced materials used in wearable health care devices and medical textiles in the battle against coronavirus (COVID-19): A review

Advanced materials used in wearable health care devices and medical textiles in the battle against coronavirus (COVID-19): A review

A piezoelectric inchworm actuator of linear type using symmetrical lever amplification

Actuated MOEMS Micro-Mirror Based on PMN PT Piezoelectric Material

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