Transparent Film-Type Vibrotactile Actuator Array and Its Haptic Rendering Using Beat Phenomenon

Choi, Dong-Soo; Kim, Sang-Youn

doi:10.3390/s19163490

Cited by 10 publications

(9 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following the general working principle in Fig. 7A, piezoelectric polymers (PVDF) have been used to produce transparent film-type vibrotactile actuators [81], [82]. The EUfunded HAPPINESS project (Haptic Printed Patterned Interfaces for Sensitive Surfaces) aims to replace mechanical components within car interfaces by using more "soft" and flexible printed actuators that combine touch sensors with localized haptic feedback [83], [84], [85].…”

Section: B) Foil Based Actuators -(Mefi -Fx)mentioning

confidence: 99%

The Haptic Fidelity Framework: A Qualitative Overview and Categorization of Cutaneous-Based Haptic Technologies Through Fidelity

Breitschaft

Heijboer

Shor³

et al. 2022

IEEE Trans. Haptics

View full text Add to dashboard Cite

After decades of research and development, haptic feedback is increasingly appearing in consumer products. While the prevalence of haptic feedback is increasing, the integration rarely offers increased fidelity to previous generations. We argue this is because of the tremendous complexity of successful haptic design engineering, but critically, also because of information saturation. With novel cutaneous feedback technologies and companies emerging almost daily, the multi-disciplinary nature of haptics and the marketing-driven terminology used to stand out in a crowded market makes it challenging to select and integrate actuators correctly.To manage this complexity and facilitate the interdisciplinary exchange of user requirements and material affordances, we introduce a novel classification criterion for haptic actuators focused on the bandwidth and fidelity of potential effects. We introduce vocabulary for describing the precise experience the actuators and corresponding systems should deliver. This same criterion and language can also prove valuable for steering nearfuture technology development of new and improved actuators and enabling novice and experienced practitioners to understand and integrate cutaneous feedback in their products.

show abstract

Section: B) Foil Based Actuators -(Mefi -Fx)mentioning

confidence: 99%

The Haptic Fidelity Framework: A Qualitative Overview and Categorization of Cutaneous-Based Haptic Technologies Through Fidelity

Breitschaft

Heijboer

Shor³

et al. 2022

IEEE Trans. Haptics

View full text Add to dashboard Cite

show abstract

“…One example of a vibrotactile actuator array (8 × 6) uses a β‐phase, large‐area film of PVDF (153 × 93 mm 2 ) with a thickness of 80 µm and pairs of transparent electrodes of indium–tin–oxide (17 × 14 mm 2 ) on opposing sides of the film. [ 160 ] An AC voltage with peak values between 500 and 1000 V leads to forces of ≈0.5 N and displacements that are detectable on the fingertips at 100 Hz (see Section 2).…”

Section: Materials and Designs For Haptic Stimulatorsmentioning

confidence: 99%

“…One reported design offers a maximum force of 900 N, displacement of 10 µm and a response time of 1–5 µs for a driving voltage of 100 V in a system that incorporates 100 layers of thin PZT (100 µm) sheets, with dimensions of 5 × 5 × 12.7 mm 3 . [ 160 ] This configuration is nonideal for skin‐integrated vibrotactile actuators due to the large required thicknesses and the resulting low bendability.…”

Section: Materials and Designs For Haptic Stimulatorsmentioning

confidence: 99%

Skin‐Integrated Vibrohaptic Interfaces for Virtual and Augmented Reality

Jung

Kim²,

2020

Adv Funct Materials

View full text Add to dashboard Cite

Haptic technology involves the use of electrical or mechanical means to stimulate afferent nerves or mechanoreceptors in the skin as the basis for creating sensations of physical touch that can qualitatively expand virtual or augmented reality experiences beyond those supported by visual and auditory cues alone. An emerging direction in this field involves the development of platforms that provide spatiotemporal patterns of sensation to the skin across not only the fingertips, but to any and all regions of the body, using thin, skin‐like technologies that impose negligible physical burden on the user. This review highlights the biological basis for skin interfaces of this type and the latest advances in haptics in the context of this ambitious goal, including electrotactile and vibrotactile devices that support perceptions of touch in form factors that have potential as skin‐integrated interfaces. The content includes a discussion of schemes for integrating these stimulators into programmable arrays, with an emphasis on scalable materials and designs that have the potential to support soft interfaces across large areas of the skin. A concluding section summarizes the potential consequences of successful research efforts in this area, along with key multidisciplinary challenges and associated research opportunities in materials science and engineering.

show abstract

“…Polyvinylidene fluoride is commonly used for a film-type piezoelectric actuator. 29,30) However, a high voltage of 1 kV or more is required for polyvinylidene fluoride to generate a vibration force that allows the user to feel a sense of touch. Meanwhile, by fabricating a device using ultra-thin MEMS technology, it is possible to use lead-zirconate titanate (PZT) having a high piezoelectric constant.…”

Section: Introductionmentioning

confidence: 99%

Development of a nail-deformation haptics device fabricated adopting ultra-thin PZT-MEMS technology

Takeshita¹,

Żymełka²,

Takei³

et al. 2022

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

We describe the fabrication and evaluation of a nail-deformation haptics actuator having a flexible haptics film. The novelty of the developed actuator is the generation of a vibration that directly deforms the nail. The flexible piezo-MEMS film is fabricated adopting ultra-thin lead-zirconate-titanate MEMS and lamination technology. The flexible piezo-MEMS film has flexibility (thickness of 65 µm) and low weight (mass of 55 mg). The device can thus be attached on a nail without discomfort. A nail-deformation haptics actuator was fabricated by attaching this flexible piezo-MEMS film on an artificial nail. When a DC voltage of 40 V was applied to the film, there was distortion of −36.5 µε in the cylindrical direction of the nail and −12.1 µε in the circumferential direction. Furthermore, when an AC voltage (40 Vpp, 20 Voffset) was applied at a frequency of 50–300 Hz, strain that deformed the nail was transmitted without attenuation.

show abstract

Transparent Film-Type Vibrotactile Actuator Array and Its Haptic Rendering Using Beat Phenomenon

Cited by 10 publications

References 33 publications

The Haptic Fidelity Framework: A Qualitative Overview and Categorization of Cutaneous-Based Haptic Technologies Through Fidelity

The Haptic Fidelity Framework: A Qualitative Overview and Categorization of Cutaneous-Based Haptic Technologies Through Fidelity

Skin‐Integrated Vibrohaptic Interfaces for Virtual and Augmented Reality

Development of a nail-deformation haptics device fabricated adopting ultra-thin PZT-MEMS technology

Contact Info

Product

Resources

About