Title
Frequency Domain Stability Observer and Active Damping Control for Stable Haptic Interaction
Abstract
Stable haptic interaction has been studied extensively by an energy-based approach. However, the energy in the haptic system is not directly measurable, but estimated from some measured quantities such as force and velocity; therefore, the estimated energy is occasionally inaccurate. To resolve this problem, a new observer, working in the frequency domain, is proposed in this research. The observer quantifies the degree of instability of a haptic system, and a proposed controller generates variable damping in proportion to this quantitative instability. Especially, for a double layered virtual wall, the proposed methods were much faster in detecting haptic instability than other schemes, and successfully reduced unstable behavior.
Year
DOI
Venue
2007
10.1049/iet-cta:20070069
IET Control Theory & Applications
Keywords
Field
DocType
stability,damping,frequency-domain analysis,haptic interfaces,observers
Frequency domain,Control theory,Vibration control,Proportional control,Control theory,Instability,Control engineering,Control system,Observer (quantum physics),Haptic technology,Physics
Conference
Volume
Issue
ISSN
2
4
1751-8644
Citations 
PageRank 
References 
5
0.57
4
Authors
5
Name
Order
Citations
PageRank
Dongseok Ryu1669.79
Jae-Bok Song248463.21
Junho Choi336660.87
Sungchul Kang437347.67
Munsang Kim560863.81