Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Development And Testing Of Fast Response Fiber Optic Pressure Sensor
Download Development And Testing Of Fast Response Fiber Optic Pressure Sensor full books in PDF, epub, and Kindle. Read online Development And Testing Of Fast Response Fiber Optic Pressure Sensor ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Development and Testing of Fast-Response Fiber-Optic Pressure Sensor by :
Download or read book Development and Testing of Fast-Response Fiber-Optic Pressure Sensor written by and published by . This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: THIS EFFORT WAS TO DEVELOP FIBER OPTIC SENSORS FOR MEASURING RAPIDLY FLUCTUATING HIGH PRESSURES. TO UNDERSTAND THE EFFECTS OF BLAST WAVES PRODUCED BY EXPLOSIONS ON CIVIL STRUCTURES, IT IS NECESSARY TO KNOW THE STRENGTH OF SUCH PRESSURE WAVES. THE PROBLEM WITH CONVENTIONAL SENSORS WHICH USE THE MOTION OF A DIAPHRAGM OR DISK IS THAT THEY TEND TO VIBRATE ONCE THEY ARE STRUCT BY AN INITIAL PRESSURE SPIKE. THE GOAL WAS TO DEMONSTRATE FEASIBILITY OF FIBER-OPTIC SENSORS FOR PRESSURE TRANSIENT MEASUREMENT. THE SEVEN CRITERIA INVOLVED IN THE EVALUATION WERE (1) SENSITIVITY AND RANGE, (2) TIME RESPONSE, (3) NOISE CHARACTERISTICS, (4) RUGGEDNESS/DURABILITY, (5) COST OF MATERIALS AND ASSOCIATED EQUIPMENT, (6) EASE OF CONSTRUCTION, AND (7) SIMPLICITY OF SENSING MECHANISM.
Book Synopsis Assessment of Fiber Optic Pressure Sensors by :
Download or read book Assessment of Fiber Optic Pressure Sensors written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a six-month Phase 1 study to establish the state-of-the-art in fiber optic pressure sensing and describes the design and principle of operation of various fiber optic pressure sensors. This study involved a literature review, contact with experts in the field, an industrial survey, a site visit to a fiber optic sensor manufacturer, and laboratory testing of a fiber optic pressure sensor. The laboratory work involved both static and dynamic performance tests. In addition, current requirements for environmental and seismic qualification of sensors for nuclear power plants were reviewed to determine the extent of the qualification tests that fiber optic pressure sensors may have to meet before they can be used in nuclear power plants. This project has concluded that fiber optic pressure sensors are still in the research and development stage and only a few manufacturers exist in the US and abroad which supply suitable fiber optic pressure sensors for industrial applications. Presently, fiber optic pressure sensors are mostly used in special applications for which conventional sensors are not able to meet the requirements.
Book Synopsis Development of Fiber Optic Sensors for Measuring Pore Water Pressures by : Paul John Cosentino
Download or read book Development of Fiber Optic Sensors for Measuring Pore Water Pressures written by Paul John Cosentino and published by . This book was released on 1994 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program Solicitation written by and published by . This book was released on with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Health Monitoring of Civil Infrastructure Systems by : Vistasp M. Karbhari
Download or read book Structural Health Monitoring of Civil Infrastructure Systems written by Vistasp M. Karbhari and published by Elsevier. This book was released on 2009-08-25 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural health monitoring is an extremely important methodology in evaluating the ‘health’ of a structure by assessing the level of deterioration and remaining service life of civil infrastructure systems. This book reviews key developments in research, technologies and applications in this area of civil engineering. It discusses ways of obtaining and analysing data, sensor technologies and methods of sensing changes in structural performance characteristics. It also discusses data transmission and the application of both individual technologies and entire systems to bridges and buildings. With its distinguished editors and international team of contributors, Structural health monitoring of civil infrastructure systems is a valuable reference for students in civil and structural engineering programs as well as those studying sensors, data analysis and transmission at universities. It will also be an important source for practicing civil engineers and designers, engineers and researchers developing sensors, network systems and methods of data transmission and analysis, policy makers, inspectors and those responsible for the safety and service life of civil infrastructure. Reviews key developments in research, technologies and applications Discusses systems used to obtain and analyse data and sensor technologies Assesses methods of sensing changes in structural performance
Book Synopsis Assessment of Fiber Optic Pressure Sensors by : H. M. Hashemian
Download or read book Assessment of Fiber Optic Pressure Sensors written by H. M. Hashemian and published by Createspace Independent Publishing Platform. This book was released on 2014-06-13 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides key results from a six-month research and development study to establish the state of the art in fiber optic pressure sensing in nuclear power plants and to describe the design and principle of operation of various fiber optic pressure sensors. The authors review current research on fiber optic sensing technologies, compare fiber optic pressure sensors with conventional pressure sensors, discuss the advantages and disadvantages of fiber optic pressure sensors, review the failure modes of these sensors, and survey fiber optic sensor manufacturers. They conclude that while fiber optic sensors are typically more expensive and harder to source than conventional sensors, they offer a range of advantages including EMI/RFI immunity, better accuracy, and faster dynamic response.
Book Synopsis Study of a MEMS Fiber-optic Pressure Sensor Based on Optical Interferometry by : Pedro Cordero Meza
Download or read book Study of a MEMS Fiber-optic Pressure Sensor Based on Optical Interferometry written by Pedro Cordero Meza and published by . This book was released on 2017 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main focus of this thesis is the development of a MEMS optical pressure sensor capable of giving real-time, accurate measurements to a mid-high pressure range. Some traditional devices for acquisition of parameters such as pressure or temperature have proven to be insufficient to the demands of the markets of research and manufacturing. State-of-the-art sensing technology has led to the construction of more reliable configurations that push the limits of traditional devices. Using micro-machined components is a suitable approach for applications that show restrictions just as limited space, noise measurement or interference created by the inaccuracy of electronic components that are not suited to be in close contact with the sensing medium. A study of the current optical based technologies revealed the current use of extrinsic Fabry - Perot interferometers in the fields of medical, biotechnological and industrial applications. Each field presents a general specific limitation, given the nature of its environment. These mostly include low pressure and temperature ranges, non-protected sensors or super sensitive, expensive devices., The operation of this sensor comprises a non-emissive, optically powered device that shows precision measurements and immunity to electromagnetic interference. Tested over a mid-high pressure range that shows a 20% improvement over the devices found in literature. This sensor is the result of the coupling of a multimode silica optical fiber, a MEMS pressure sensor with a thin silicon film and a stainless steel housing for packaging. A theoretical analysis and response simulations were used previous and along the process of construction and testing of the device. This analysis was followed by an assessment on the materials that were suitable for the assembling of the device, plus the pertinent modifications for each component that allowed a proper coupling. Several tests were done previous to the final assembly of the device, where calibration, alignment and limitations of the device were studied previous to determine the sensor's response. The experiments were done at the SimsLab of the University of Waterloo, using a pressure chamber with direct connection to the housing of the sensor to avoid pressure leaks. The sensor's properties include a silicon thin film with a thickness of 34 micrometers, an optical fiber with a core diameter of 125 micrometers, protected by a ceramic ferrule to provide stability and rigidity to the fiber. The fiber is part of a coupler that splits the optical signal between the input and output beams. The output leg of the coupler then sends the information to an OSI (Optical Sensor Interrogator) which is a set of electronics that use a photo detector to break the light into its spectral components, analyzing fringes and converting the photons into electrons which are digitized as a function of the wavelength and read out via a USB port into a host computer. A LabView program then converts the optical response to a value in millivolts that can be directly related to the changes in pressure that are detected by the deflective silicon membrane. A complete characterization of the sensor's response was carried out. An averaged sensitivity of 1.3768 mV / psi over a range of 0 - 100 psi was found. An accuracy of 1.25 psi per 0.1 mV was established. The Noise Equivalent Pressure measurement could to be neglected over the accuracy that is limited by the capacity of the electronics. In summary, an Optical MEMS pressure sensor was developed. This device is capable of being tested in laboratory and manufacturing-like simulated environments. The pressure measurements acquired during this project assisted the base for a future prototype to be developed in enhancing the pressure range in a harsh environment, with elevated temperature. Proof-of-concept data was gathered and analyzed so further advances can be reached on micro-fabrication and optical techniques.
Book Synopsis New Results in Numerical and Experimental Fluid Mechanics XIII by : Andreas Dillmann
Download or read book New Results in Numerical and Experimental Fluid Mechanics XIII written by Andreas Dillmann and published by Springer Nature. This book was released on 2021-07-13 with total page 787 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers timely insights into research on numerical and experimental fluid mechanics and aerodynamics, mainly for (but not limited to) aerospace applications. It reports on findings by members of the STAB (German Aerospace Aerodynamics Association) and DGLR (German Society for Aeronautics and Astronautics) and covers both nationally and EC-funded projects. Continuing on the tradition of the previous volumes, the book highlights innovative solutions, promoting translation from fundamental research to industrial applications. It addresses academics and professionals in the field of aeronautics, astronautics, ground transportation, and energy alike.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fiber Optic Sensors written by Eric Udd and published by John Wiley & Sons. This book was released on 2011-10-11 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the technology has moved strongly into a number of different areas a textbook of this sort could be used by a wide variety of academic departments including physics, electrical engineering, mechanical engineering, civil engineering, aerospace engineering and bioengineering. To make the second edition as widely appealing as possible a series of significant upgrades were made. 1. The book is structured to support a variety of academic programs and it can also be used as a general reference by practicing engineers and scientists. 2. The introductory chapter has been revised to outline the new content of the second edition and provide a overview of the current status of fiber optic sensor technology. 3. A new, extensive chapter has been added covering fiber optic grating sensor technology and its application to aerospace, civil structures, oil and gas and power generating applications. 4. A second new chapter has been added on the emerging field of biomedical fiber optic sensors. This is one of the most rapidly growing fields of use for fiber optic sensors and with rising health costs and medical advances promises to be an important area for many years to come.
Book Synopsis Proceedings of the 2nd International Conference on Advanced Civil Engineering and Smart Structures by : TianQiao Liu
Download or read book Proceedings of the 2nd International Conference on Advanced Civil Engineering and Smart Structures written by TianQiao Liu and published by Springer Nature. This book was released on with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optics and Machine Vision for Marine Observation by : Hong Song
Download or read book Optics and Machine Vision for Marine Observation written by Hong Song and published by Frontiers Media SA. This book was released on 2023-10-13 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fiber Optic Pressure Sensor Development by : Henry F. Taylor
Download or read book Fiber Optic Pressure Sensor Development written by Henry F. Taylor and published by . This book was released on 1995 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conception and Optimization of a Piezo-optic Pressure Transducer by : Mathieu Guilhem
Download or read book Conception and Optimization of a Piezo-optic Pressure Transducer written by Mathieu Guilhem and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The measurement of pressure is a field that has been studied for centuries due to its important technological implications. Our goal is to propose an original method to measure high hydrostatic pressures using a low cost optical sensor. A number of pressure sensors have been developed over the years, and the first part of this work presents an overview of the main ones. We then focus on optical pressure sensors, discuss the advantages and inconveniences of each method with regards to our constraints, and decide to develop the concept of a sensor based on the piezo-optic effect, i.e. the stress-induced birefringence in a transparent dielectric subjected to a force. We presents the tools that will be used to modelize the piezo-optic pressure sensor: we first review the theory of polarization of light, from its physical origin to the Mueller-Stokes formalism; we then focus on the interaction of polarized light with matter: we discuss the theory of the piezooptic effect and the polarization effects of total and partial reflections at an interface. Both effects are modelized in terms of their Mueller matrices. We then propose an original concept for a pressure sensor, using an approach different from the one usually seen in polarimetric sensors. First the concept of a piezo-optic pressure sensor is presented where polarized light interacts with a dielectric material subjected to a pressure; the resulting state of polarization is analyzed by a second polarizer and a photodetector. Some aspects of the sensor are optimized while its shortcomings are listed. In light of this analysis we propose a revised concept to addresses these issues. The new proposal uses carefully oriented reflections to replace all polarizing elements, enabling simpler and cheaper production. We modelize this device, analyze its optical behavior, and then present the different sources of measurement error. Most of them are negligible, and we present methods to mitigate the influence of these that are not. Part IV focuses on the experimental validation of the concepts presented so far. We describe the conception, calibration and validation of a Fourier Transform Mueller polarimeter that we intend to use to study the temperature dependence of the piezo-optic effect. We build a prototype based on the initial concept of the piezo-optic pressure sensor presented in Part III, and test its response to pressure. Its behaviour is found to be coherent with theoretical predictions, and these measurement serve to validate the concept of the sensor that was developed during this work.
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1996 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optical Sensors by : Ramaier Narayanaswamy
Download or read book Optical Sensors written by Ramaier Narayanaswamy and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: This interesting book covers latest aspects of a highly sophisticated technology; results treated in critical detail; demonstrates applicability of this technology to practical problems in process control, biochip methods, clinical analysis, environmental sciences
Book Synopsis Development of a Fiber Optic High Temperature Strain Sensor by : National Aeronautics and Space Adm Nasa
Download or read book Development of a Fiber Optic High Temperature Strain Sensor written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-11-07 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: From 1 Apr. 1991 to 31 Aug. 1992, the Georgia Tech Research Institute conducted a research program to develop a high temperature fiber optic strain sensor as part of a measurement program for the space shuttle booster rocket motor. The major objectives of this program were divided into four tasks. Under Task 1, the literature on high-temperature fiber optic strain sensors was reviewed. Task 2 addressed the design and fabrication of the strain sensor. Tests and calibration were conducted under Task 3, and Task 4 was to generate recommendations for a follow-on study of a distributed strain sensor. Task 4 was submitted to NASA as a separate proposal. Rausch, E. O. and Murphy, K. E. and Brookshire, S. P. Unspecified Center FIBER OPTICS; HIGH TEMPERATURE RESEARCH; HIGH TEMPERATURE TESTS; OPTICAL FIBERS; SENSORS; STRAIN GAGES; STRAIN MEASUREMENT; CALIBRATING; FABRICATION; HIGH TEMPERATURE; SILICON DIOXIDE...
