Optical Three-Axis Tactile Sensor

Ohka, Masahiro

doi:10.5772/4770

Cited by 10 publications

(4 citation statements)

References 17 publications

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“…Various tactile sensing methods have been introduced based on resistive, capacitive, piezoelectric, ultrasonic, electromagnetic sensing elements [2]–[7]. In order to achieve dexterous handling of robots, it is required to obtain not only contact forces [8][9] but also information on slippage [10]–[17] on the sensor surface.…”

Section: Introductionmentioning

confidence: 99%

Contact State Estimation by Vision-Based Tactile Sensors for Dexterous Manipulation with Robot Hands Based on Shape-Sensing

Ito

Kim

Nagai

et al. 2011

International Journal of Advanced Robotic Systems

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We propose a new method for estimating the contact state of objects with varying shapes on a visionbased fluid-type tactile sensor, which touch pad is an elastic transparent membrane of silicon rubber with dotted pattern printed on its inner side. The membrane is filled with translucent red colored water. The proposed method leads to better understanding of the object's shape and movement, and can be applied for accomplishing reliable and dexterous handling tasks by robot hands.

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Section: Introductionmentioning

confidence: 99%

Contact State Estimation by Vision-Based Tactile Sensors for Dexterous Manipulation with Robot Hands Based on Shape-Sensing

Ito

Kim

Nagai

et al. 2011

International Journal of Advanced Robotic Systems

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“…The use of optics in tactile sensor is not new; several attempts have been made to use either camera based or electro-optic modalities in tactile sensing. The camera-based approaches generally involve tracking patterns or the position of landmarks on the inner surface of an elastomer [13,14]. Other approaches involve modulating the signal between a light emitting element and a light sensor [15,16] or coupling optical waveguides [17].…”

Section: B Previous Work In Proximity and Contact Sensingmentioning

confidence: 99%

Advances in fibrillar on-off polymer adhesive: Sensing and engagement speed

Wettels

Parness

2014

2014 IEEE/RSJ International Conference on Intelligent Robots and Systems

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ON-OFF adhesives can benefit manufacturing and space applications by providing the capability to selectively anchor two surfaces together repeatedly and releasably without significant preload. Two key areas of concern are speed of engagement and sensing the quality of that engagement. Here we describe a dual-purpose proximity and tactile sensor for the contact surfaces of robotic systems. Using infrared emitters and combinations of wide and narrow angle detectors, this device combines proximity and force sensing to seamlessly transition from a pre-contact to contact state. As an inherently low-power device, it is amenable to mobile robotic applications. We also present results showing this engagement can occur very rapidly, making it useful in high-throughput manufacturing and dexterous manipulation tasks.

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“…Another example of this can be seen in [28] with an optical three-axis tactile sensor. The sensor surface is covered in rubber skin which serves both to protect the sensitive light-emitting diodes (LED) and eliminates insensible areas.…”

Section: Advantages Of Soft Robot Skinmentioning

confidence: 99%