Active antenna for contact sensing

IEEE Transactions on Robotics and Automation Volume 14 Issue 2 Page 278-291 published_at 1998
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Title ( eng )
Active antenna for contact sensing
Kaneko Makoto
Kanayama Naoki
Source Title
IEEE Transactions on Robotics and Automation
Volume 14
Issue 2
Start Page 278
End Page 291
This paper proposes a new active sensor system (active antenna) that can detect not only the contact location between an insensitive flexible beam and an environment but also the information of the environment's surface where the beam makes contact. The active antenna is simply composed of a flexible beam, actuators to move the beam, position sensors to measure the rotational angle of the beam, and a moment sensor. We first show that the contact distance under no lateral slip is proportional to the rotational compliance that the beam can sense at the rotational center. The lateral slip, which possibly occurs according to the pushing direction and the environment's geometry, overestimates the rotational compliance, and as a result, brings a large sensing error for the localizing contact point. The goal of this paper is to find the contact location under such conditions. We explore how to detect a lateral slip and how to determine the new pushing direction to avoid it. We show an algorithm that can search for the pushing direction which can avoid any lateral slip. The convergence of this algorithm is shown and a practical utilization of this algorithm is also discussed with a trade-off between the number of trials and the sensing accuracy.
Active antenna
contact point sensing
tactile sensing
Mechanical engineering [ 530 ]
Resource Type journal article
Date of Issued 1998
Copyright (c) 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 1042-296X
[DOI] 10.1109/70.681246
[NCID] AA10686140