On the electrical characterization of electroadhesive displays and the prominent interfacial gap impedance associated with sliding fingertips

Craig D. Shultz, Michael Peshkin, Ed Colgate

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

We report on the characterization of two variable friction electroadhesive displays using careful electrical and electrochemical impedance measurements. We qualitatively and quantitatively examine the properties of the skin, body, surface coating, and various electrode interface impedances in isolation using different contact interface conditions and measurement types. A lumped series impedance model explains how all impedances are related during normal usage, and the linearity of this model is shown to be valid under certain assumptions, such as high applied frequencies or small applied currents. Speculation as to the physical mechanisms underlying each impedance element is also given. This analysis unambiguously verifies the existence of a previously hypothesized key electrical system parameter: the sliding interfacial impedance (or air gap impedance). This parameter represents the large increase (100-1000 percent) in overall electrical impedance observed when a finger is sliding versus when it is stationary. It is concluded that this impedance increase cannot be explained by other measured electrical impedance elements in the system and that it vanishes again when the finger comes to rest.

Original languageEnglish (US)
Title of host publicationIEEE Haptics Symposium, HAPTICS 2018 - Proceedings
EditorsYon Visell, Katherine J. Kuchenbecker, Gregory J. Gerling
PublisherIEEE Computer Society
Pages151-157
Number of pages7
ISBN (Electronic)9781538654248
DOIs
StatePublished - May 9 2018
Event2018 IEEE Haptics Symposium, HAPTICS 2018 - San Francisco, United States
Duration: Mar 25 2018Mar 28 2018

Publication series

NameIEEE Haptics Symposium, HAPTICS
Volume2018-March
ISSN (Print)2324-7347
ISSN (Electronic)2324-7355

Other

Other2018 IEEE Haptics Symposium, HAPTICS 2018
CountryUnited States
CitySan Francisco
Period3/25/183/28/18

Fingerprint

Acoustic impedance
Display devices
Skin
Friction
Coatings
Electrodes
Air

ASJC Scopus subject areas

  • Artificial Intelligence
  • Human-Computer Interaction

Cite this

Shultz, C. D., Peshkin, M., & Colgate, E. (2018). On the electrical characterization of electroadhesive displays and the prominent interfacial gap impedance associated with sliding fingertips. In Y. Visell, K. J. Kuchenbecker, & G. J. Gerling (Eds.), IEEE Haptics Symposium, HAPTICS 2018 - Proceedings (pp. 151-157). (IEEE Haptics Symposium, HAPTICS; Vol. 2018-March). IEEE Computer Society. https://doi.org/10.1109/HAPTICS.2018.8357168
Shultz, Craig D. ; Peshkin, Michael ; Colgate, Ed. / On the electrical characterization of electroadhesive displays and the prominent interfacial gap impedance associated with sliding fingertips. IEEE Haptics Symposium, HAPTICS 2018 - Proceedings. editor / Yon Visell ; Katherine J. Kuchenbecker ; Gregory J. Gerling. IEEE Computer Society, 2018. pp. 151-157 (IEEE Haptics Symposium, HAPTICS).
@inproceedings{37cfc04e9e0c422f834bd20fc7e9240d,
title = "On the electrical characterization of electroadhesive displays and the prominent interfacial gap impedance associated with sliding fingertips",
abstract = "We report on the characterization of two variable friction electroadhesive displays using careful electrical and electrochemical impedance measurements. We qualitatively and quantitatively examine the properties of the skin, body, surface coating, and various electrode interface impedances in isolation using different contact interface conditions and measurement types. A lumped series impedance model explains how all impedances are related during normal usage, and the linearity of this model is shown to be valid under certain assumptions, such as high applied frequencies or small applied currents. Speculation as to the physical mechanisms underlying each impedance element is also given. This analysis unambiguously verifies the existence of a previously hypothesized key electrical system parameter: the sliding interfacial impedance (or air gap impedance). This parameter represents the large increase (100-1000 percent) in overall electrical impedance observed when a finger is sliding versus when it is stationary. It is concluded that this impedance increase cannot be explained by other measured electrical impedance elements in the system and that it vanishes again when the finger comes to rest.",
author = "Shultz, {Craig D.} and Michael Peshkin and Ed Colgate",
year = "2018",
month = "5",
day = "9",
doi = "10.1109/HAPTICS.2018.8357168",
language = "English (US)",
series = "IEEE Haptics Symposium, HAPTICS",
publisher = "IEEE Computer Society",
pages = "151--157",
editor = "Yon Visell and Kuchenbecker, {Katherine J.} and Gerling, {Gregory J.}",
booktitle = "IEEE Haptics Symposium, HAPTICS 2018 - Proceedings",
address = "United States",

}

Shultz, CD, Peshkin, M & Colgate, E 2018, On the electrical characterization of electroadhesive displays and the prominent interfacial gap impedance associated with sliding fingertips. in Y Visell, KJ Kuchenbecker & GJ Gerling (eds), IEEE Haptics Symposium, HAPTICS 2018 - Proceedings. IEEE Haptics Symposium, HAPTICS, vol. 2018-March, IEEE Computer Society, pp. 151-157, 2018 IEEE Haptics Symposium, HAPTICS 2018, San Francisco, United States, 3/25/18. https://doi.org/10.1109/HAPTICS.2018.8357168

On the electrical characterization of electroadhesive displays and the prominent interfacial gap impedance associated with sliding fingertips. / Shultz, Craig D.; Peshkin, Michael; Colgate, Ed.

IEEE Haptics Symposium, HAPTICS 2018 - Proceedings. ed. / Yon Visell; Katherine J. Kuchenbecker; Gregory J. Gerling. IEEE Computer Society, 2018. p. 151-157 (IEEE Haptics Symposium, HAPTICS; Vol. 2018-March).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - On the electrical characterization of electroadhesive displays and the prominent interfacial gap impedance associated with sliding fingertips

AU - Shultz, Craig D.

AU - Peshkin, Michael

AU - Colgate, Ed

PY - 2018/5/9

Y1 - 2018/5/9

N2 - We report on the characterization of two variable friction electroadhesive displays using careful electrical and electrochemical impedance measurements. We qualitatively and quantitatively examine the properties of the skin, body, surface coating, and various electrode interface impedances in isolation using different contact interface conditions and measurement types. A lumped series impedance model explains how all impedances are related during normal usage, and the linearity of this model is shown to be valid under certain assumptions, such as high applied frequencies or small applied currents. Speculation as to the physical mechanisms underlying each impedance element is also given. This analysis unambiguously verifies the existence of a previously hypothesized key electrical system parameter: the sliding interfacial impedance (or air gap impedance). This parameter represents the large increase (100-1000 percent) in overall electrical impedance observed when a finger is sliding versus when it is stationary. It is concluded that this impedance increase cannot be explained by other measured electrical impedance elements in the system and that it vanishes again when the finger comes to rest.

AB - We report on the characterization of two variable friction electroadhesive displays using careful electrical and electrochemical impedance measurements. We qualitatively and quantitatively examine the properties of the skin, body, surface coating, and various electrode interface impedances in isolation using different contact interface conditions and measurement types. A lumped series impedance model explains how all impedances are related during normal usage, and the linearity of this model is shown to be valid under certain assumptions, such as high applied frequencies or small applied currents. Speculation as to the physical mechanisms underlying each impedance element is also given. This analysis unambiguously verifies the existence of a previously hypothesized key electrical system parameter: the sliding interfacial impedance (or air gap impedance). This parameter represents the large increase (100-1000 percent) in overall electrical impedance observed when a finger is sliding versus when it is stationary. It is concluded that this impedance increase cannot be explained by other measured electrical impedance elements in the system and that it vanishes again when the finger comes to rest.

UR - http://www.scopus.com/inward/record.url?scp=85047920527&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85047920527&partnerID=8YFLogxK

U2 - 10.1109/HAPTICS.2018.8357168

DO - 10.1109/HAPTICS.2018.8357168

M3 - Conference contribution

T3 - IEEE Haptics Symposium, HAPTICS

SP - 151

EP - 157

BT - IEEE Haptics Symposium, HAPTICS 2018 - Proceedings

A2 - Visell, Yon

A2 - Kuchenbecker, Katherine J.

A2 - Gerling, Gregory J.

PB - IEEE Computer Society

ER -

Shultz CD, Peshkin M, Colgate E. On the electrical characterization of electroadhesive displays and the prominent interfacial gap impedance associated with sliding fingertips. In Visell Y, Kuchenbecker KJ, Gerling GJ, editors, IEEE Haptics Symposium, HAPTICS 2018 - Proceedings. IEEE Computer Society. 2018. p. 151-157. (IEEE Haptics Symposium, HAPTICS). https://doi.org/10.1109/HAPTICS.2018.8357168