Sensing Large Strains by Measuring Light Attenuation in Elastomeric Waveguides

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ISBN 13 :
Total Pages : 73 pages
Book Rating : 4.:/5 (15 download)

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Book Synopsis Sensing Large Strains by Measuring Light Attenuation in Elastomeric Waveguides by : Michael Seow

Download or read book Sensing Large Strains by Measuring Light Attenuation in Elastomeric Waveguides written by Michael Seow and published by . This book was released on 2018 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soft actuators can bend and deform into many shapes and it is advantageous to be able to measure the position of the end of a soft actuator to provide feedback control. Relying solely on input measurements of the quantity that provides the energy for actuations (driving fluid pressure or volume in the case of pneumatic and hydraulic actuators) does not provide enough information to estimate the position considering that external forces will also have an impact on the resulting shape and position. Therefore, more direct position sensing methods such as strain sensing are required. These position sensing methods will need to satisfy a number of requirements to be suitable as a sensor for a soft actuator. The sensor must be able to detect larger strains ideally greater than 200 % to provide coverage for a large variety of movements. The sensor should be able to do this with a high degree of sensitivity and repeatability. In addition, it would be beneficial for the sensor to be relatively cheap and cost effective, and immune to or largely unaffected by electromagnetic interference. After considering different position and strain sensing technologies, a strain sensing method using light attenuation in an elastomeric waveguide was deemed the most appropriate. The light attenuation is characterized with a fit to the Beer-Lambert Law where the light power exponentially decreases as the distance increases from the light source. The elastomeric waveguide itself was inexpensive, easy to manufacture, and could undergo large strains with strains of up to 275 % under test (potentially to strains of up to 900 % as quoted in the product datasheet). Being an optical method, the sensor is immune to electrical or magnetic interference. Testing proved that the sensor was accurate and reliable over low numbers of stretching cycles.

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 652 pages
Book Rating : 4.:/5 (31 download)

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Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Handbook of Modern Sensors

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Publisher : Springer Science & Business Media
ISBN 13 : 0387216049
Total Pages : 596 pages
Book Rating : 4.3/5 (872 download)

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Book Synopsis Handbook of Modern Sensors by : Jacob Fraden

Download or read book Handbook of Modern Sensors written by Jacob Fraden and published by Springer Science & Business Media. This book was released on 2006-04-29 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seven years have passed since the publication of the previous edition of this book. During that time, sensor technologies have made a remarkable leap forward. The sensitivity of the sensors became higher, the dimensions became smaller, the sel- tivity became better, and the prices became lower. What have not changed are the fundamental principles of the sensor design. They are still governed by the laws of Nature. Arguably one of the greatest geniuses who ever lived, Leonardo Da Vinci, had his own peculiar way of praying. He was saying, “Oh Lord, thanks for Thou do not violate your own laws. ” It is comforting indeed that the laws of Nature do not change as time goes by; it is just our appreciation of them that is being re?ned. Thus, this new edition examines the same good old laws of Nature that are employed in the designs of various sensors. This has not changed much since the previous edition. Yet, the sections that describe the practical designs are revised substantially. Recent ideas and developments have been added, and less important and nonessential designs were dropped. Probably the most dramatic recent progress in the sensor technologies relates to wide use of MEMS and MEOMS (micro-electro-mechanical systems and micro-electro-opto-mechanical systems). These are examined in this new edition with greater detail. This book is about devices commonly called sensors. The invention of a - croprocessor has brought highly sophisticated instruments into our everyday lives.

Optics Letters

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ISBN 13 :
Total Pages : 540 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Optics Letters written by and published by . This book was released on 2005 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electrical & Electronics Abstracts

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ISBN 13 :
Total Pages : 1860 pages
Book Rating : 4.3/5 (243 download)

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Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 1860 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Handbook of Advanced Nondestructive Evaluation

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Publisher : Springer
ISBN 13 : 9783319265520
Total Pages : 0 pages
Book Rating : 4.2/5 (655 download)

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Book Synopsis Handbook of Advanced Nondestructive Evaluation by : Nathan Ida

Download or read book Handbook of Advanced Nondestructive Evaluation written by Nathan Ida and published by Springer. This book was released on 2019-07-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is a comprehensive source of information on all aspects of non-destructive testing (NDT), for use by professionals, educators, and most of all, by the practitioners of testing. The art of NDT consists of dozens of methods, some classical, and some emerging. As the pace of industrial work and discovery intensifies and materials are utilized to their physical limits, the role of NDT becomes ever more important. As a result, the methods of testing are themselves evolving, and it is the intent of this book to capture this evolution. Handbook of Modern Non-Destructive Testing broadens the scope from traditional books on the subject. In addition to classical, emerging and exotic methods of evaluation, the book will also cover the use of NDT techniques in other fields, such as archaeology or resource exploration. With contributions from experts in all areas of the field, the reader will find balanced coverage of a variety of testing methods, with no bias against or endorsements of any particular method. The book treats many areas in depth, covering all aspects of testing, and will include case studies where appropriate. Additional coverage of statistical methods and their use, as well as simulations‘ role in testing and test design, are included.

Energy Research Abstracts

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ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.:/5 (3 download)

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Download or read book Energy Research Abstracts written by and published by . This book was released on 1987 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Archives of Acoustics Quarterly

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ISBN 13 :
Total Pages : 606 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Archives of Acoustics Quarterly by :

Download or read book Archives of Acoustics Quarterly written by and published by . This book was released on 2013 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Holographic Sensors

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Publisher : Springer
ISBN 13 : 3319135848
Total Pages : 175 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis Holographic Sensors by : Ali Kemal Yetisen

Download or read book Holographic Sensors written by Ali Kemal Yetisen and published by Springer. This book was released on 2014-12-03 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a theoretical and experimental approach for the rapid fabrication, optimization and testing of holographic sensors for the quantification of pH, organic solvents, metal cations, and glucose in solutions. Developing non-invasive and reusable diagnostics sensors that can be easily manufactured will support the monitoring of high-risk individuals in any clinical or point-of-care setting. Sensor fabrication approaches outlined include silver-halide chemistry, laser ablation and photopolymerization. The sensors employ off-axis Bragg diffraction gratings of ordered silver nanoparticles and localized refractive index changes in poly (2-hydroxyethyl methacrylate) and polyacrylamide films. The sensors exhibited reversible Bragg peak shifts, and diffracted the spectrum of narrow-band light over the wavelength range λpeak ≈ 495-1100 nm. Clinical trials of glucose sensors in the urine samples of diabetic patients demonstrated that they offer superior performance compared to commercial high-throughput urinalysis devices. Lastly, a generic smartphone application to quantify colorimetric tests was developed and tested for both Android and iOS operating systems. The sensing platform and smartphone application may have implications for the development of low-cost, reusable and equipment-free point-of-care diagnostic devices.

Polymer Optical Fiber Bragg Gratings

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Publisher : CRC Press
ISBN 13 : 1000734005
Total Pages : 286 pages
Book Rating : 4.0/5 (7 download)

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Book Synopsis Polymer Optical Fiber Bragg Gratings by : Ricardo Oliveira

Download or read book Polymer Optical Fiber Bragg Gratings written by Ricardo Oliveira and published by CRC Press. This book was released on 2019-11-12 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer optical fibers (POFs) have been regarded as a viable alternative to silica fibers in a variety of sensing applications. Fiber optic sensors offer key advantages over other sensing technologies, which include immunity to electromagnetic interference, compact, lightweight, multiplexing capability, and higher sensitivity. This book gives an overview of the polymer optical fiber Bragg grating (POFBG) technology over the last 20 years, covering aspects related to the fiber Bragg grating fabrication and also sensing applications. The book is split into five chapters, and it is written in such a way that can provide a comprehensive and simple route to new users, scientists and engineers working or wishing to work in the field of POFBGs: Describes the systems commonly employed for producing fiber Braggs gratings (FBGs) in silica fibers that can be used for the production of POFBGs; Explores different laser sources for the inscription of POFBGs; Explores the capability of using this technology at the visible and infrared region, in different fiber types (e.g., step-index, microstructured, unclad, highly birefringent) and in fibers composed of different polymer materials such as PMMA, doped PMMA, PS and ZEONEX; Reports the fabrication of different types of POF gratings, such as uniform, phase-shifted, tilted, chirped, and long-period gratings; Shows the opportunities of POFBGs for a variety of sensing applications. The insight to the use of POFBGs provides a vision for the opportunities of this fiber optic technology.

Nonlinear Theory of Electroelastic and Magnetoelastic Interactions

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Publisher : Springer Science & Business Media
ISBN 13 : 1461495962
Total Pages : 318 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Nonlinear Theory of Electroelastic and Magnetoelastic Interactions by : Luis Dorfmann

Download or read book Nonlinear Theory of Electroelastic and Magnetoelastic Interactions written by Luis Dorfmann and published by Springer Science & Business Media. This book was released on 2014-02-06 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a unified theory on nonlinear electro-magnetomechanical interactions of soft materials capable of large elastic deformations. The authors include an overview of the basic principles of the classic theory of electromagnetism from the fundamental notions of point charges and magnetic dipoles through to distributions of charge and current in a non-deformable continuum, time-dependent electromagnetic fields and Maxwell’s equations. They summarize relevant theories of continuum mechanics, required to account for the deformability of material and present a constitutive framework for the nonlinear magneto-and electroelastic interactions in a highly deformable material. The equations contained in the book formulate and solve a variety of representative boundary-value problems for both nonlinear magnetoelasticity and electroelasticity.

Lab-on-Fiber Technology

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Publisher : Springer
ISBN 13 : 3319069985
Total Pages : 377 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Lab-on-Fiber Technology by : Andrea Cusano

Download or read book Lab-on-Fiber Technology written by Andrea Cusano and published by Springer. This book was released on 2014-07-29 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on a research field that is rapidly emerging as one of the most promising ones for the global optics and photonics community: the “lab-on-fiber” technology. Inspired by the well-established "lab on-a-chip" concept, this new technology essentially envisages novel and highly functionalized devices completely integrated into a single optical fiber for both communication and sensing applications. Based on the R&D experience of some of the world's leading authorities in the fields of optics, photonics, nanotechnology, and material science, this book provides a broad and accurate description of the main developments and achievements in the lab-on-fiber technology roadmap, also highlighting the new perspectives and challenges to be faced. This book is essential for scientists interested in the cutting-edge fiber optic technology, but also for graduate students.

The Engineering Index Annual

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ISBN 13 :
Total Pages : 2264 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis The Engineering Index Annual by :

Download or read book The Engineering Index Annual written by and published by . This book was released on 1992 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.

NASA SP.

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ISBN 13 :
Total Pages : 464 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis NASA SP. by :

Download or read book NASA SP. written by and published by . This book was released on 1974 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Journal of the Optical Society of America

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ISBN 13 :
Total Pages : 438 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Journal of the Optical Society of America by : Optical Society of America

Download or read book Journal of the Optical Society of America written by Optical Society of America and published by . This book was released on 1981 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Polymer Optical Fibres

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Publisher : Woodhead Publishing
ISBN 13 : 0081000561
Total Pages : 438 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Polymer Optical Fibres by : Christian-Alexander Bunge

Download or read book Polymer Optical Fibres written by Christian-Alexander Bunge and published by Woodhead Publishing. This book was released on 2016-08-25 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer Optical Fibres: Fibre Types, Materials, Fabrication, Characterization, and Applications explores polymer optical fibers, specifically their materials, fabrication, characterization, measurement techniques, and applications. Optical effects, including light propagation, degrading effects of attenuation, scattering, and dispersion, are explained. Other important parameters like mechanical strength, operating temperatures, and processability are also described. Polymer optical fibers (POF) have a number of advantages over glass fibers, such as low cost, flexibility, low weight, electromagnetic immunity, good bandwidth, simple installation, and mechanical stability. Provides systematic and comprehensive coverage of materials, fabrication, properties, measurement techniques, and applications of POF Focuses on industry needs in communication, illumination and sensors, the automotive industry, and medical and biotechnology Features input from leading experts in POF technology, with experience spanning optoelectronics, polymer, and textiles Explains optical effects, including light propagation, degrading effects of attenuation, scattering, and dispersion

Dissertation Abstracts International

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ISBN 13 :
Total Pages : 906 pages
Book Rating : 4.F/5 ( download)

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Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: