NDLI: First high speed simultaneous force feedback for multi-trap optical tweezers

Content Provider	IEEE Xplore Digital Library
Author	Zhenjiang Ni Munan Yin Pacoret, C. Benosman, R. Regnier, S.
Copyright Year	2014
Description	Author affiliation: Vision Inst., Univ. Pierre et Marie Curie, Paris, France (Benosman, R.) \|\| Inst. des Syst. Intelligents et de Robot., Univ. Pierre et Marie Curie, Paris, France (Zhenjiang Ni; Munan Yin; Pacoret, C.; Regnier, S.)
Abstract	Optical tweezers use a tightly focused laser beam to trap dielectric micro-object. Haptic optical tweezers integrate a robotic haptic device into the system to control trap positions and in the meantime feedback forces. This technique opens a broad reaching applications by providing direct and intuitive interactions during micromanipulation. However, 1 kHz sampling rate is required to ensure a reliable tactile sensation. A system satisfying this requirement has been presented in our previous work. This paper goes one big step further to perform real-time high speed haptic feedback on multi-trap optical tweezers. The goal of the system is to enable users to touch the microscale object the same way as using their fingers. The used force sensor is a novel event-based vision sensor that transmits output as a stream of asynchronous timestamped events that eliminates internally the redundant static information. The associated event based algorithm can thus be able to track the positions of two spheres up to 1 kHz. A contact experiment is performed demonstrating the feasibility and the efficiency of the presented method. To our knowledge, this is the first time high speed haptic feedback is performed on multiple microspheres simultaneously in a contact scenario.
Starting Page	7
Ending Page	12
File Size	2130603
Page Count	6
File Format	PDF
e-ISBN	9781479957361
DOI	10.1109/AIM.2014.6878038
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-08
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical sensors Voltage control Optical feedback High-speed optical techniques Haptic interfaces Optical imaging Synchronization
Content Type	Text
Resource Type	Article

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