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Analogue input shaper for haptic interfaces

Identifieur interne : 000D22 ( PascalFrancis/Curation ); précédent : 000D21; suivant : 000D23

Analogue input shaper for haptic interfaces

Auteurs : Y.-A. Lim [Corée du Sud] ; H.-S. Ahn [Corée du Sud] ; J. Ryu [Corée du Sud]

Source :

RBID : Pascal:10-0047756

Descripteurs français

English descriptors

Abstract

An analogue input shaper (AIS) is proposed as a means for stably increasing the displayable impedance range of haptic interfaces. Usually, high-frequency inputs can occur during collisions with very stitt virtual objects and induce instabilities. The proposed AIS is basically a nonlinear low-pass filter and acts as a frequency-dependent dissipative element, which can eliminate unwanted high-frequency inputs to haptic interfaces. The proposed AIS is not placed in the power stage but in the signal stage, so that the AIS can be designed independent of motor parameters and does not affect transparency in free motion. In addition, two linear half-wave rectifiers are incorporated into the AIS to allow for a fast decrease of impedance and no negative input to the haptic interface when a haptic pointer leaves a virtual object. Through virtual wall experiments using two different haptic interfaces, the effectiveness of the proposed AIS is shown.
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A11 03  1    @1 RYU (J.)
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C01 01    ENG  @0 An analogue input shaper (AIS) is proposed as a means for stably increasing the displayable impedance range of haptic interfaces. Usually, high-frequency inputs can occur during collisions with very stitt virtual objects and induce instabilities. The proposed AIS is basically a nonlinear low-pass filter and acts as a frequency-dependent dissipative element, which can eliminate unwanted high-frequency inputs to haptic interfaces. The proposed AIS is not placed in the power stage but in the signal stage, so that the AIS can be designed independent of motor parameters and does not affect transparency in free motion. In addition, two linear half-wave rectifiers are incorporated into the AIS to allow for a fast decrease of impedance and no negative input to the haptic interface when a haptic pointer leaves a virtual object. Through virtual wall experiments using two different haptic interfaces, the effectiveness of the proposed AIS is shown.
C02 01  X    @0 001D02D11
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C03 01  X  FRE  @0 Contrôle vibration @5 06
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C03 02  X  FRE  @0 Système actif @5 07
C03 02  X  ENG  @0 Active system @5 07
C03 02  X  SPA  @0 Sistema activo @5 07
C03 03  X  FRE  @0 Interface utilisateur @5 18
C03 03  X  ENG  @0 User interface @5 18
C03 03  X  SPA  @0 Interfase usuario @5 18
C03 04  X  FRE  @0 Sensibilité tactile @5 19
C03 04  X  ENG  @0 Tactile sensitivity @5 19
C03 04  X  SPA  @0 Sensibilidad tactil @5 19
C03 05  X  FRE  @0 Haute fréquence @5 20
C03 05  X  ENG  @0 High frequency @5 20
C03 05  X  SPA  @0 Alta frecuencia @5 20
C03 06  X  FRE  @0 Collision @5 21
C03 06  X  ENG  @0 Collision @5 21
C03 06  X  SPA  @0 Colisión @5 21
C03 07  X  FRE  @0 Instabilité @5 22
C03 07  X  ENG  @0 Instability @5 22
C03 07  X  SPA  @0 Inestabilidad @5 22
C03 08  X  FRE  @0 Transparence @5 23
C03 08  X  ENG  @0 Transparency @5 23
C03 08  X  SPA  @0 Transparencia @5 23
C03 09  X  FRE  @0 Redresseur @5 24
C03 09  X  ENG  @0 Rectifier @5 24
C03 09  X  SPA  @0 Rectificador @5 24
C03 10  X  FRE  @0 Filtre non linéaire @5 28
C03 10  X  ENG  @0 Non linear filter @5 28
C03 10  X  SPA  @0 Filtro no lineal @5 28
C03 11  X  FRE  @0 Filtre passe bas @5 29
C03 11  X  ENG  @0 Low pass filter @5 29
C03 11  X  SPA  @0 Filtro paso bajo @5 29
C03 12  X  FRE  @0 Correction entrée @5 33
C03 12  X  ENG  @0 Input shaping @5 33
C03 12  X  SPA  @0 Corrección entrada @5 33
N21       @1 032
N44 01      @1 OTO
N82       @1 OTO

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Le document en format XML

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