Searched for: department%3A%22Electronic%255C+Instrumentation%255C+Laboratory%22
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Schilken, I. (author), Miedema, R.D. (author)
De GonioTrainer is een systeem dat mensen helpt om een beter inzicht te krijgen in hun bewegingen. Het bestaat uit een sensor module en een feedback module die beide op het lichaam worden bevestigd. Ze worden draadloos uitgelezen en aangestuurd door een smartphone. Er is gekozen voor een Bluetooth Low Energy verbinding tussen de modules en en...
bachelor thesis 2015
document
Hogenhout, G. (author), Hogenhout, K. (author)
Deze thesis is geschreven in het kader van het bachelor eindproject van de TU Delft in samenwerking met het bedrijf IT Motions. De opdracht van dit bedrijf was een prototype te ontwikkelen van Babyshell. BabyShell is een apparaat dat moeders uit derdewereldlanden advies geeft tijdens de zwangerschap en verder helpt met het (op)voeden van hun...
bachelor thesis 2015
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Markenhof, J. (author), Van der Meulen, J. (author), De Vries, C. (author)
In deze bachelorthesis wordt een ontwerp gepresenteerd van draadloze communicatie voor een draadloos sensorsysteem voor het automatisch meten van pH en temperatuur. Het is gelukt een volledig passieve RFID tag te selecteren en deze te integreren in een PCB ontwerp met de andere onderdelen van het sensorsysteem. Op basis van een proof of concept...
bachelor thesis 2013
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Tokovinin, A. (author), Thomas, S. (author), Vdovin, G. (author)
Membrane micro-machined deformable mirrors (MMDM) feature low cost, low power consumption, small size and absence of hysteresis. Interested in using such a device for the adaptive optics system at the SOAR 4.1-m telescope, we evaluated the performance of a 79-channel 50-mm (pupil size 35mm) MMDM from OKO Technologies. The measured influence...
conference paper 2004
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Soloviev, O. (author), Vdovin, G. (author)
We propose an algorithm for phase retrieval from three interferograms which differ only by an arbitrary unknown tilt terms in the phase. The method is illustrated by examples.
conference paper 2005
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Goettling, S. (author), Brill, J. (author), Fruehauf, N. (author), Pflaum, J. (author), Margallo-Balbás, E. (author)
A low temperature high quality gate dielectric process for bottom gate organic thin film transistors (OTFT) is introduced which is compatible to plastic substrates. The Al2O3 dielectric is grown from the aluminum gate electrode by anodic oxidation at room temperature and exhibits an exceptionally good electrical performance even for thin layers...
conference paper 2005
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Pandraud, G. (author), Pham, H.T.M. (author), Pakula, L.S. (author), Sarro, P.M. (author), French, P.J. (author)
Planar silicon carbide (SiC) waveguides are proposed for fabrication on a silicon substrate with a oxide isolation layer. Using post deposition annealing it is possible to achieve low Polarization-Dependent Loss (PDL) within optical SiC waveguides fabricated using a low temperature deposition technique. Those waveguides have been successfully...
conference paper 2005
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Grabarnik, S. (author), Emadi, A. (author), Wu, H. (author), De Graaf, G. (author), Wolffenbuttel, R.F. (author)
This paper reports on the development and validation of a new technology for the fabrication of variable line-spacing non-planar diffraction gratings to be used in compact spectrometers. The technique is based on the standard lithographic process commonly used for pattern transfer onto a flat substrate. The essence of the technology presented...
conference paper 2008
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Grabarnik, S. (author), Emadi, A. (author), Wu, H. (author), De Graaf, G. (author), Vdovin, G. (author), Wolffenbutter, R.F. (author)
The design and performance of a highly miniaturized spectrometer fabricated using MEMS technologies are reported in this paper. Operation is based on an imaging diffraction grating. Minimizing fabrication complexity and assembly of the micromachined optical and electronic parts of the microspectrometer implies a planar design. It consists of two...
conference paper 2008
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Loktev, M. (author), Vdovin, G. (author), Nanver, L. (author)
A reflective-type liquid crystal (LC) wavefront corrector with modal addressing is described. The corrector’s backplane has an array of pixel electrodes interconnected by a network of discrete resistors. The resistive network serves to form the local voltage profile that controls the phase distribution generated in the liquid crystal layer. This...
conference paper 2005
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Vdovin, G. (author), De Lima Monteiro, D.W. (author), Akhzar-Mehr, O. (author), Loktev, M. (author), Sakarya, S. (author), Soloviev, O. (author), Sarro, P.M. (author)
We present an overview of the results of our recent research in the field of adaptive optical components based on silicon microtechnologies, including membrane deformable mirrors, spatial light modulators, liquid-crystal correctors, wavefront sensors, and both spherical and aspherical micro-optical components. We aim at the realization of...
conference paper 2004
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Kasalynas, I. (author), Adam, A.J.L. (author), Klaassen, T.O. (author), Hovenier, N.J. (author), Panraud, G. (author), Iordanov, V.P. (author), Sarro, P.M. (author)
Detection peculiarities of an un-cooled (room temperature) 8×8 pixel array designed to image broadband THz radiation were investigated. Each pixel consists of a thin conductive film absorber on a dielectric membrane with thermopile temperature readout. It was designed and tested for four combinations of two different types of absorber and...
conference paper 2007
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Margallo-Balbas, E. (author), Pandraud, G. (author), French, P.J. (author)
Optical Coherence Tomography (OCT) is a powerful medical imaging technology. Its ability to non-invasively probe tissues in depth with high resolution has lead to applications in many fields of medicine, with a large potential for surgical guidance. One of the technological challenges impairing faster adoption of OCT is the relative complexity...
conference paper 2007
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Dijk, H.E. (author)
doctoral thesis 1988
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Margallo Balbás, E. (author)
The potential of light in diagnosis and therapy has been long recognised. With the advent of scientific progress in our understanding of light propagation and interaction with tissue and parallel major technological advances in how optical energy can be generated, detected and processed, this potential is being realised. Linking with this trend,...
doctoral thesis 2010
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Holzmann, G.J. (author)
doctoral thesis 1979
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Shahi, B. (author)
This thesis describes techniques to reduce the offset error in precision instrumentation and operational amplifiers. The offset error which is considered a major error source associated with gain blocks, together with other errors are reviewed. Conventional and newer approaches to remove offset and low frequency noise are discussed, with a focus...
doctoral thesis 2015
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Heidary, A. (author), Meijer, G.C.M. (author)
This paper presents the analysis and design of an integrated interface for grounded capacitive sensors. To reduce the effects of parasitic cable capacitances, a feedforward technique has been applied. In combination with the use of a special front-end amplifier this yields high immunity for a parasitic cable capacitance. The major nonidealities...
journal article 2009
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Zhang, C. (author), Makinwa, K.A.A. (author)
journal article 2008
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Chen, Y. (author), Wang, X. (author), Mierop, A.J. (author), Theuwissen, A.J.P. (author)
This paper presents a CMOS imager sensor with pinned-photodiode 4T active pixels which use in-pixel buried-channel source followers (SFs) and optimized row selectors. The test sensor has been fabricated in a 0.18-mum CMOS process. The sensor characterization was carried out successfully, and the results show that, compared with a regular imager...
journal article 2009
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