Дисертації з теми "Strain Sensing Application"
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Liang, Sijia [Verfasser], Roger [Gutachter] Wördenweber, Markus [Gutachter] Grüninger, and Joachim [Gutachter] Hemberger. "Surface Acoustic Waves in Strain-Engineered Thin (K,Na)NbO3 Films: From Basic Research to Application in Molecular Sensing / Sijia Liang ; Gutachter: Roger Wördenweber, Markus Grüninger, Joachim Hemberger." Köln : Universitäts- und Stadtbibliothek Köln, 2021. http://d-nb.info/1229616705/34.
Повний текст джерелаHarold, Douglas A. "An Evaluation of Optical Fiber Strain Sensing for Engineering Applications." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/41239.
Повний текст джерелаMaster of Science
White, Julia. "OPTIC FIBER SENSOR FOR STRAIN MEASUREMENTS IN HIGH TEMPERATURE SENSING APPLICATIONS." International Foundation for Telemetering, 2017. http://hdl.handle.net/10150/626969.
Повний текст джерелаNguyen, Quan H. "Physical Sensing Effects in AlGaN/GaN Heterostructure and Applications." Thesis, Griffith University, 2021. http://hdl.handle.net/10072/411259.
Повний текст джерелаThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Eng & Built Env
Science, Environment, Engineering and Technology
Full Text
Njuguna, Michael Kamau. "Characterisation of multi wall carbon nanotube–polymer composites for strain sensing applications." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/54671/1/Michael_Kamau_Njuguna_Thesis.pdf.
Повний текст джерелаBhatia, Vikram. "Properties and sensing applications of long-period gratings." Diss., This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-11082006-133634/.
Повний текст джерелаKe, Kai. "Piezoresistive Behavior of Carbon Nanotube based Poly(vinylidene fluoride) Nanocomposites towards Strain Sensing Applications." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-201959.
Повний текст джерелаNaeli, Kianoush. "Optimization of piezoresistive cantilevers for static and dynamic sensing applications." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28247.
Повний текст джерелаCommittee Chair: Brand, Oliver; Committee Member: Adibi, Ali; Committee Member: Allen, Mark G.; Committee Member: Bottomley, Lawrence A.; Committee Member: Degertekin, F. Levent.
Melilli, Giuseppe. "Irradiation and nanostructuration of piezoelectric polymers for nano-sensoring and harvesting energy applications." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLX072/document.
Повний текст джерелаThe versatility of the track-etching technique has allowed to investigate deeper the direct and inverse piezoelectric effect of a polarized Poly(vinylidene fluoride) (PVDF) film in building nanostructured hybrid Nickel nanowires (Ni NWs)/PVDF membrane. The magnetic properties of the Ni NW, such as anisotropic magneto resistance (AMR), are exploited to investigate the response of the magnetization to a mechanical deformation of the PVDF matrix. In particular, the deformations were induced either by thermo-mechanical or an electro-mechanical (inverse piezoelectric effect) stress. The sensitivity of the single NW has allowed to determine the amplitude and direction of a mechanical stress exerted at the nano-scale by the PVDF matrix. The outstanding resistance of the direct piezoelectric response of polarized PVDF film to radiation, such as SHI and e-beam, (doses range < 100kGy) was reported. Beyond the conservation of the piezoelectric response, in this dose range, irradiation defects (chain scissions, increase of the crystalline -phase, crosslinking) had a significative impact on the polymer material. All these defects, ones predominant above the gel dose (herein 10 kGy), and the other ones below, compensate their antagonistic effects towards the globally unchanged piezoelectric responses. Motivated by the high radiation resistance of the PVDF in terms of piezoelectric response, the idea was to exploit Ni NWs array embedded in the polarized PVDF membrane to study the influence of the Ni NWs on the piezoelectric response in view of harvesting energy application. The presence of the Ni NWs array leads a non-negligible increase of the piezoelectric efficiency. Related to the presence of the NWs, an increase of the dielectric permittivity in the nanostructured PVDF was also reported. An interfacial polarization between the Ni NWs and the PVDF matrix could explain the higher efficiency value respect to nanoporous PVDF, without NWs
Ke, Kai [Verfasser], Brigitte [Akademischer Betreuer] Voit, and Karl [Akademischer Betreuer] Schulte. "Piezoresistive Behavior of Carbon Nanotube based Poly(vinylidene fluoride) Nanocomposites towards Strain Sensing Applications / Kai Ke. Betreuer: Brigitte Voit. Gutachter: Brigitte Voit ; Karl Schulte." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://d-nb.info/1100356053/34.
Повний текст джерелаKe, Kai [Verfasser], Brigitte Akademischer Betreuer] Voit, and Karl [Akademischer Betreuer] [Schulte. "Piezoresistive Behavior of Carbon Nanotube based Poly(vinylidene fluoride) Nanocomposites towards Strain Sensing Applications / Kai Ke. Betreuer: Brigitte Voit. Gutachter: Brigitte Voit ; Karl Schulte." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-201959.
Повний текст джерелаHamilton, Bryan. "DNA Analysis of Surfactant Associated Bacteria in the Sea Surface Microlayer in Application to Satellite Remote Sensing Techniques: Case Studies in the Straits of Florida and the Gulf of Mexico." NSUWorks, 2015. http://nsuworks.nova.edu/occ_stuetd/39.
Повний текст джерелаWang, SHENG-FENG, and 王聖丰. "Application of Strain and Magnetic Sensing based on the Comb-type Long-period Fiber Grating." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/fn284a.
Повний текст джерела國立高雄應用科技大學
機械與精密工程研究所
104
In this paper, we utilize lithography technique along with etched optical fibers and SU-8 3050 photoresist to product long-period fiber grating (LPFG). The periodic comb-type structure of photoresist is patterned onto the LPFG. Then, we adopt the PDMS, which is a kind of polymeric organosilicon compound, to coat the grating structure of LPFG, and the packaged comb-type LPFG (PCLPFG) is fabricated. Subsequently, we use the electroforming process to deposit the nickel within the patterned periodic structure and we will obtain the metallic comb-type LPFG (MCLPFG). First, we use the PCLPFG sensors to detect the variations of the longitudinal and transverse loading. According to the results of the experiments, we can find that when the longitudinal and transverse loading are strengthen, the phenomenon of the transmission loss agrees with the coupled-mode theory and the dips of transmission loss perform as a quadratic function of cosine. We also execute the experiment of the axial loading test for three times to ensure the feasibility and reproducibility of the proposed optical fiber grating sensors. The better sensitivities of sensors are -53.892 dB/N and 0.00946dB/με, and the corresponding period of the fiber gratings are 600 and 620 μm. During the process of the magnetic field sensing experiment, we use the MCLPFG sensors to detect the strength of external applied magnetic field. In order to avoid thermal effect, we employ the NdFeB magnet to generate the magnetic field. The strength of magnetic flux density is determined by adjusting the vertical distance between the NdFeB magnet and metallic grating structure of MCLPFG. We also use the Gaussmeter to execute the real-time probing of the magnetic flux density. According to the results of the experiments, we can find that when the magnetic flux density is strengthen, the magnetic force would attract the metallic grating structure and induce the variation of strain induced refractive index. The phenomenon of the transmission loss agrees with the coupled-mode theory and the dips of transmission loss would descend or ascend. The best sensitivity is 0.04528 dB/Gauss at the grating period of 630 μm.
Petley, Vijay Uttamrao. "Material and Mechanical Aspects of Thin Film Coatings for Strain Sensing Application on Aero Engines." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4273.
Повний текст джерелаLee, Ho Young. "Stress and strain dielectric response for sensing and actuator applications." 2008. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерелаHe, Kuen-Yi, and 何坤益. "Stretched abrupt-tapered micro fiber interferometers and its strain sensing applications." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/25073065152523841250.
Повний текст джерела國立聯合大學
光電工程學系碩士班
102
In this study, we made a stretched abrupt-tapered micro fiber interferometers by two-step processing tapered fiber, in order to sense strain and measure temperature characteristics. Firstly, we fabricated an abrupt-tapered fiber by discharging electrode to excite higher order cladding mode and then used hydrogen flame to make abrupt fiber stretched, enabling the fiber core and high order cladding mode to recombine and generate interference. In this experiment, by using Corning standard single-mode fiber (single mode fiber 28, SMF-28) and Erbium and Ytterbium co-doped fiber (Er/Yb codoped fiber, EYDF), we made sensors to compare results in different diameters. In case of using optic strain sensors made by EYDF fiber, with diameter of 2.8 μm, strain sensitivity reached up to 7.71 nm/mɛ, while using sensors made by SMF-28, with diameter of 4.2 μm, strain sensitivity reached 3.96 nm/mɛ and became temperature-insensitive from 30 to 70 degree Celsius. In this study, we provide a sensor with compact size, easy fabrication and cost efficiency. Hope in the future it will be widely applied in housing construction, machinery and equipment, environmental conservation, earthquake prediction and biomedical engineering.
Lee, Guan-Liang, and 李冠良. "A Pulsed-Biasing Strain Gauge Measurement System for Wireless Sensing Applications." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/15537597584339726836.
Повний текст джерела國立臺灣大學
工程科學及海洋工程學研究所
100
This paper presents a pulsed-biasing strain gauge measurement system for wireless sensing applications. The use of pulsed-biasing on the strain gauge can reduce the power consumption of the sensor, which is crucial for low-power wireless sensors. Moreover, without using a constant bias current, power dissipated on the resistive bridge that includes the strain gauge can be reduced. Such reduction can also reduce measurement errors from an increased strain gauge temperature. A strain gauge wireless sensor was constructed using commercially available components. Measurement results show that the pulsed-biasing technique can be implemented with a duty cycle down to around 40% with negligible measurement error at a data rate of 32 Hz. The power saved is equivalent to an increased operation time of 50%.
Madhavan, R. "Inkjet-Printed Ag Nanomaterials based Strain Sensors for Wearable Sensing Applications." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5715.
Повний текст джерелаWong, Allan Chi-Lun Electrical Engineering & Telecommunications Faculty of Engineering UNSW. "Fibre-optic sensing technology and applications in civil engineering." 2007. http://handle.unsw.edu.au/1959.4/40627.
Повний текст джерелаKimbell, Jeremiah. "History and Analysis of Distributed Acoustic Sensing (DAS) for Oilfield Applications." Thesis, 2013. http://hdl.handle.net/1969.1/150995.
Повний текст джерела