With advances in mobile computing and virtual/augmented reality technologies, communicating through touch using wearable haptic devices is poised to enrich and augment current information delivery channels that typically rely on sight and hearing. To realize a wearable haptic device capable of effective data communication, both ergonomics and haptic performance (i.e., array size, bandwidth, and perception accuracy) are essential considerations. However, these goals often involve challenging and conflicting requirements. We present an integrated approach to address these conflicts, which includes incorporating multilayered dielectric elastomer actuators, a lumped-parameter model of the skin, and a wearable frame in the design loop. An antagonistic arrangement—consisting of an actuator deforming the skin—was used to achieve effective force transmission while maintaining a low profile, and the effect of the wearable frame and structure was investigated through lumped-model analysis and human perception studies.
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References
1.
JohanssonRS, FlanaganJR. Coding and use of tactile signals from the fingertips in object manipulation tasks. Nat Rev Neurosci, 2009; 10:345.
2.
McGloneF, WessbergJ, OlaussonH. Discriminative and affective touch: sensing and feeling. Neuron, 2014; 82:737.
3.
BolanowskiSJ, GescheiderGA, VerrilloRT, et al.Four channels mediate the mechanical aspects of touch. J Acoust Soc Am, 1988; 84:1680.
4.
CulbertsonH, SchorrSB, OkamuraAM. Haptics: the present and future of artificial touch sensation. Ann Rev Control Robot Auton Syst, 2018; 1:385.
5.
HoC, KimJ, PatilS, et al.The slip-pad: a haptic display using interleaved belts to simulate lateral and rotational slip. IEEE World Haptics Conf, 2015:189–195.
6.
KuchenbeckerKJ, FieneJ, NiemeyerG. Improving contact realism through event-based haptic feedback. IEEE Trans Vis Comput Graph, 2006; 12:219.
7.
DargahiJ, NajarianS. Human tactile perception as a standard for artificial tactile sensing—a review. Int J Med Robot Comput Assist Surg, 2004; 1:23.
8.
YinJ, HinchetR, SheaH, et al.Wearable soft technologies for haptic sensing and feedback. Adv Funct Mater, 2020:2007428.
9.
GuptaR, TanwarS, TyagiS, et al.Tactile internet and its applications in 5g era: a comprehensive review. Int J Commun Syst, 2019; 32:e3981.
10.
SeifiH, FazlollahiF, OppermannM, et al.Haptipedia: accelerating haptic device discovery to support interaction & engineering design. In: CHI Conference on Human Factors in Computing Systems,, 2019:1–12.
11.
ShullPB, DamianDD. Haptic wearables as sensory replacement, sensory augmentation and trainer—a review. J Neuroeng Rehabil, 2015; 12:1.
12.
McKinleyS, GargA, SenS, et al.A single-use haptic palpation probe for locating subcutaneous blood vessels in robot-assisted minimally invasive surgery. In: IEEE International Conference on Automation Science and Engineering,, 2015:1151–1158.
Bach-y RitaP, CollinsCC, SaundersFA, et al.Vision substitution by tactile image projection. Nature, 1969; 221:963.
16.
WithanaA, GroegerD, SteimleJ. Tacttoo: A thin and feel-through tattoo for on-skin tactile output. In: Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology,, 2018:365–378.
17.
CoganSF.Neural stimulation and recording electrodes. Ann Rev Biomed Eng, 2008; 10:275.
18.
StrongRM, TroxelDE. An electrotactile display. IEEE Trans Man-Machine Syst, 1970; 11:72.
19.
KimSW, KimSH, KimCS, et al.Thermal display glove for interacting with virtual reality. Sci Rep, 2020; 10:1.
20.
LeeJ, KimD, SulH, et al.Thermo-haptic materials and devices for wearable virtual and augmented reality. Adv Funct Mater, 2020:2007376.
21.
PacchierottiC, SinclairS, SolazziM, et al.Wearable haptic systems for the fingertip and the hand: taxonomy, review, and perspectives. IEEE Trans Haptics, 2017; 10:580.
22.
WeinsteinS.Intensive and extensive aspects of tactile sensitivity as a function of body part, sex and laterality. The skin senses Kenshalo D. (Ed). Springfield, IL: Charles C. Thomas, 1968, pp. 195–222.
23.
JiX, LiuX, CacuccioloV, et al.Untethered feel-through haptics using 18-μm thick dielectric elastomer actuators. Adv Funct Mater, 2020:2006639.
24.
BoysH, FredianiG, PosladS, et al.A dielectric elastomer actuator-based tactile display for multiple fingertip interaction with virtual soft bodies. Electroactive Polymer Actuators and Devices. Int Soc Opt Photonics, 2017:101632D.
25.
WongEY, IsrarA, O'MalleyMK. Discrimination of consonant articulation location by tactile stimulation of the forearm. In: IEEE Haptics Symposium, HAPTICS, 2010:47–54.
26.
TanHZ, ReedCM, JiaoY, et al.Acquisition of 500 English words through a TActile Phonemic Sleeve (TAPS). IEEE Trans Haptics, 2020; 13:745–760.
27.
AzadiM, JonesLA. Evaluating vibrotactile dimensions for the design of tactons. IEEE Trans Haptics, 2014; 7:14–23.
28.
SofiaKO, JonesL. Mechanical and psychophysical studies of surface wave propagation during vibrotactile stimulation. IEEE Trans Haptics, 2013; 6:320–329.
29.
BrownLM, BrewsterSA, PurchaseHC. Multidimensional tactons for non-visual information presentation in mobile devices. In: ACM International Conference Proceeding Series, 2006; 159:231–238.
30.
YuX, XieZ, YuY, et al.Skin-integrated wireless haptic interfaces for virtual and augmented reality. Nature, 2019; 575:473.
31.
SonarHA, PaikJ. Soft pneumatic actuator skin with piezoelectric sensors for vibrotactile feedback. Front Robot AI, 2016; 2:38.
32.
BiswasS, VisellY. Emerging material technologies for haptics. Adv Mater Technol, 2019; 4:1900042.
33.
Carpi F, De Rossi D, Kornbluh R, et al. Dielectric Elastomers as Electromechanical Transducers: Fundamentals, Materials, Devices, Models and Applications of an Emerging Electroactive Polymer Technology, Elsevier, 2011.
34.
BartlettMD, FasslerA, KazemN, et al.Stretchable, high-k dielectric elastomers through liquid-metal inclusions. Adv Mater, 2016; 28:3726.
35.
KornbluhRD, PelrineR, PeiQ, et al. Electroelastomers: applications of dielectric elastomer transducers for actuation, generation, and smart structures. In: Smart Structures and Materials 2002: Industrial and Commercial Applications of Smart Structures Technologies 2002;4698, pp. 254–270.
36.
Phung. H, Hoang PT, Nguyen CT, et al. Interactive haptic display based on soft actuator and soft sensor. In: IEEE/RSJ International Conference on Intelligent Robots and Systems, 2017, pp. 886–891.
37.
VishniakouS, LewisBW, NiuX, et al.Tactile feedback display with spatial and temporal resolutions. Sci Rep, 2013; 3:1.
38.
ZhaoH, HussainAM, IsrarA, et al.A wearable soft haptic communicator based on dielectric elastomer actuators. Soft Robot, 2020; 7:451.
39.
NaebeM, RobinsN, WangX, et al.Assessment of performance properties of wet-suits. Proc Inst Mech Eng, 2013; 227:255.
40.
McCulloughEA, JonesBW, HuckJ. A comprehensive data base for estimating clothing insulation. Ashrae Trans, 1985; 91:29.
41.
JonesLA.Tactile communication systems: optimizing the display of information. Progr Brain Res, 2011; 192:113.
42.
TanH, ChoiS, LauF, et al.Methodology for maximizing information transmission of haptic devices: a survey. Proc IEEE, 2020; 108.6:945–965.
43.
ZhaoH, HussainAM, DudutaM, et al.Compact dielectric elastomer linear actuators. Adv Funct Mater, 2018; 28:1804328.
44.
JoodakiH, PanzerMB. Skin mechanical properties and modeling: a review. J Eng Med, 2018; 232:323.
45.
ElsnerP, WilhelmD, MaibachH. Mechanical properties of human forearm and vulvar skin, Br J Dermatol 1990;122:607.
46.
HoogendoornI, ReenaldaJ, KoopmanBF, et al.The effect of pressure and shear on tissue viability of human skin in relation to the development of pressure ulcers: a systematic review. J Tissue Viabil, 2017; 26:157.
47.
SandersJE, GoldsteinBS, LeottaDF. Skin response to mechanical stress: adaptation rather than breakdown-a review of the literature. J Rehabil Res Dev, 1995; 32:214.
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