Rubber-based strain sensor fabricated using photolithography for intelligent tires

Matsuzaki, Ryosuke; Keating, Timothy; Todoroki, Akira; Hiraoka, Naoki

doi:10.1016/j.sna.2008.08.001

Cited by 77 publications

(40 citation statements)

References 22 publications

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“…Deformation of the sensor changes the overlapping length and the distance between those two adjacent finger electrodes. As a result, the sensor's capacitance varies [17]. For the strain sensor to work properly, it is very important to remove the residual layer of AgNPs between the finger electrodes because a contact between any pair of adjacent fingers will short-circuit the whole device.…”

Section: Resultsmentioning

confidence: 99%

“…Durability is required from a strain sensor, such as one for the intelligent tire sensors, exposed to harsh environment like repeatable, irregular and abrupt deformation. A flexible tire sensor fabricated by photolithography with metal lift-off had a very thin film of electrodes [17], which might not be strong enough to endure harsh exploitation conditions. Hence, the thick electrodes fabricated in this work by the direct stamping of metal nano ink might help enhance the durability of the sensor.…”

Section: Introductionmentioning

confidence: 99%

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Direct stamping of silver nanoparticles toward residue-free thick electrode

Kim

Wubs

Bae

et al. 2012

Science and Technology of Advanced Materials

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Direct stamping of functional materials has been developed for cost-effective and process-effective manufacturing of nano/micro patterns. However, there remain several challenging issues like the perfect removal of the residual layer and realization of high aspect ratio. We have demonstrated facile fabrication of flexible strain sensors that have microscale thick interdigitated capacitors with no residual layer by a simple direct stamping with silver nanoparticles (AgNPs). Polyurethane (PU) prepolymer was utilized as an adhesive layer to transfer AgNPs more efficiently during the separation step of the flexible stamp from directly stamped AgNPs. Scanning electron microscopy images and energy dispersive x-ray spectroscopy analysis revealed residue-free transfer of microscale thick interdigitated electrodes onto two different flexible substrates (elastomeric and brittle) for the application to highly sensitive strain sensors.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Direct stamping of silver nanoparticles toward residue-free thick electrode

Kim

Wubs

Bae

et al. 2012

Science and Technology of Advanced Materials

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“…タイヤと路面間の摩擦係数などを測定することを提案している (Yilmazoglu et al, 2001)．Sergio (Sergio et al, 2006) や，Matsuzaki (Matsuzaki et al, 2006 (Matsuzaki et al, 2008)．また，Hiraoka (Hiraoka et al, 2009)，Matsuzaki (Matsuzaki et al, 2010(Matsuzaki et al, , 2012 Experimental apparatus composed of a tire rotating device, a force plate and a parallel mechanism. The parallel mechanism can apply high vertical and horizontal loads to the tire.…”

Section: 緒言近年，自動車の安全性向上を目的として，Abs(antilockmentioning

confidence: 99%

Measurement of friction coefficient between a tire and grounding surface with the deformation of inner of the tread

Tachiya

Ise

Higuchi

et al. 2018

Transactions of the JSME (In Japanese)

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Previously, in order to measure friction coefficients of tire grounding surface in car slipping, a cantilever-type sensor that can detect the vertical load and friction force as well as the direction of the friction force simultaneously has been proposed. The sensing part, which contacts grounding surface, of the proposed sensor is pulled out of the tire tread through a hole. However, penetrating the hole through tire tread part has some problems: leakage of air from the tire, weakening of the rigidity etc. Therefore this study proposes a sensor that can be installed on the inner surface of a tire without penetrating hole through the tire tread by filling the detecting part of the sensor in the inner part of the tire tread. If the detecting part filled in the inner surface has sufficient airtight structure from the integral manufacturing, the durability of the sensor as well as retaining air pressure are expected. This study measured the deformation of the inner part of the tread through the detecting part under high-load at tire slipping state. Furthermore, relation between the measurement values and the force applied to the tire from grounding surface was clarified. As a result, the study confirmed that the proposed method can detect the friction coefficients between the tire and tire grounding surface.

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“…In recent years, to enhance the performance of antilock brake systems (ABSs) and detect the conditions of road surfaces, there has been a demand for intelligent tires that monitor the slip ratio and coefficient of friction (COF) between the tire rubber and the road surface (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11) ．For monitoring the slip ratio, it is necessary to measure rolling radius (out-of-plane displacement) of tires, while measurements of the applied force, which can be estimated using strain distribution, are required for monitoring the COF (1)(2)(3) . Pohl et al (3)(4) showed that it is possible to monitor road surface friction utilizing the deformation of the tread elements by using surface acoustic wave sensors fixed onto the interior surface of the tire rubber.…”

Section: Introductionmentioning

confidence: 99%

“…Yilmazoglu et al (5) used magnetic field sensors implanted in the tire rubber to detect tread deformation. Matsuzaki et al (7)(8)(9)(10) considered the steel wires of tires as a parallel circuit of capacitance and resistance for strain monitoring of tire using capacitance-resistance change. However, it is problematic for realizing intelligent tires that the high stiffness difference between these attached or implanted sensors and tire rubber causes sensor debonding during service.…”

Section: Introductionmentioning

confidence: 99%

Optical 3D Deformation Measurement Utilizing Non-planar Surface for the Development of an “Intelligent Tire”

Matsuzaki

Hiraoka

Todoroki

et al. 2010

JMMP

Self Cite

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Intelligent tires, also known as smart tires, are equipped with sensors to monitor the strain of the interior surface and the rolling radius of tire, and are expected to improve the reliability of tires and tire control systems such as anti-lock braking systems (ABS). However, the high stiffness of an attached sensor like a strain gauge causes sensors to debond from the tire rubber. In the present study, a novel optical method is used for the concurrent monitoring of in-plane strain and out-of-plane displacement (rolling radius) utilizing the non-planar surface of the monitoring object. The optical method enables noncontact measurement of strain distribution. The in-plane strain and out-of-plane displacement are calculated by using image processing with an image of the interior surface of a tire that is taken with a single CCD camera fixed on the wheel rim. This new monitoring system is applied to an aluminum beam and a commercially available radial tire. As a result, the monitoring system provides concurrent measurement of in-plane strain, out-of-plane displacement and tire pressure, and is shown to be an effective monitoring system for intelligent tires.

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Rubber-based strain sensor fabricated using photolithography for intelligent tires

Cited by 77 publications

References 22 publications

Direct stamping of silver nanoparticles toward residue-free thick electrode

Direct stamping of silver nanoparticles toward residue-free thick electrode

Measurement of friction coefficient between a tire and grounding surface with the deformation of inner of the tread

Optical 3D Deformation Measurement Utilizing Non-planar Surface for the Development of an “Intelligent Tire”

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