Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 58 for “"charge coupled device"”.
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Charge-coupled device optimizations for astronomy.
In the past decade, charge-coupled devices (CCDs) have rapidly become the astronomical imaging detector of choice for the visible and near-IR spectral regions. There are, however, several problems which have greatly reduced the availability of sufficient quality CCDs to the astronomical community. …
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Imaging of Transient Analytical Plasmas Using Charge-Coupled Device Detectors
… predecessors is exhibited, with the exception of charge coupled device (CCD) detection technology. The incorporation of a CCD into a high energy source spectroscopy laboratory is documented, considering device selection, hardware and software engineering, operating procedures, importance of …
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A charge coupled device based optical tomographic instrumentation system for particle sizing.
This research investigates the use of charge coupled device (abbreviated as CCD) linear image sensors in an optical tomographic instrumentation system used for sizing particles. Four CCD linear image sensors are configured around an octagonal shaped flow pipe for a four projections system. The …
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Computer control of a charge-coupled device in a prototype blood analysis machine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Utilization of a scientifically operated charge-coupled device detector for high-performance thin-layer chromatographic analysis
… chromatographic (HPTLC) separation system coupled with a scientifically operated charge-couple device detector (CCD) has been developed to improve the identification and quantitative analysis of pharmaceutical products and natural toxins. The combination of the fast, easy and high …
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Impact Ionization in Charge Coupled Devices
A charge coupled device was designed and fabricated for the purpose of measuring impact ionization at the silicon-silicon dioxide interface. All past experiments have measured impact ionization either totally or partly in the bulk. Since the mobility of holes and electrons is lower at the interface …
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Meso-scale fluidic devices with chemical sensors for biological applications
… oxygen and humidity quantification using color charge-coupled device (CCD) camera as a photodetector and LED panel as an excitation source. Meso-scale fluidic devices with integrated oxygen and humidity sensors for potential applications to hydrotropic and oxytropic studies of small plant roots …
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An optical C.C.D. convolver
… thesis studies a new method of implementing a charge-coupled device (CCD) transversal filter using optical input. The basic principle involves shining light from a signal-modulated light-emitting diode (LED) onto an optical mask which controls the amount of light reaching the various CCD …
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Novel designs, materials and techniques in plasma bipolar junction transistor (PBJT) fabrication and testing
… a Princeton Instruments PI-MAX 3 intensified charge-coupled device (ICCD) camera. As a further improvement on the PBJT design, fabrication using a novel laterally-doped configuration is underway and initial work in making this device has been illustrated. Finally, the fabrication of PBJTs on a …
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Dynamic light scattering and diffusing wave spectroscopy studies of the microscopic dynamics of polystyrene latex spheres suspened in glycerol
… in the multiple scattering regime using a charge coupled device [CCD] camera as our detector. Our experiments, which investigated suspensions of various concentrations [0.001</=0</=0.075], extended over length scales ranging from q = 0.00015 A to q = 0.00071 A and spanned three orders of …
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Two-dimensional transient analysis of buried-channel charge-coupled devices
<p>Since the invention of charge-coupled device (CCD) by W. S. Boyle and G. E. Smith in 1970, this device has drawn tremendous attention. CCD is considered as an important milestone in the electronic industry;In 1972, a new structure of CCD, called buried-channel charge-coupled device (BCCD) was …
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Evaluation of the theta pinch as a sampling and excitation source for elemental analysis of solid refractory materials
Studies of a theta pinch discharge device were performed to assess its effectiveness as a sampling and excitation source for elemental analysis of refractory solids. Previous work demonstrated the ability of the discharge to produce spectra suitable for qualitative analysis, but quantitation could …
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Temperature measurement and thermal control of die casting processes using CCD cameras
… casting process is developed, using low-cost, charge-coupled device (CCD) cameras. Factors present in an industrial setting that affect non-contact temperature measurement are identified, and a system is developed to overcome these factors. A temperature control system for the die casting …
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Development of x-ray luminescence detection system and characterization of x-ray irradiated quantum dots for image-guided x-ray photodynamic therapy
… utilizes a light-sensitive electron-multiplying charge coupled device (EMCCD), a demagnifying (DM) image intensifier, and on optical lens to monitor XL signal emitted from the QDs. We used core-shell QDs and doped QDs to characterize their XL properties and absorption of X-ray photons. Along with …
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Study of photogrammetric self-calibration adjustment method
… mensuration tests and experiments with video and Charge Coupled Device (CCD) imagery.
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A real-time optical measurement system
… algorithms to find a target on a linear-array charge-coupled device (CCD) camera are performed. The running maximum algorithm provides the best accuracy and speed and therefore is recommended. A real-time architecture to implement the running maximum algorithm is developed. The architecture …
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Ranging of Aircraft Using Wide-baseline Stereopsis
… a baseline 14.32 meters and two 640 x 480 pixel charge coupled device camera. An experimental research design was used in both studies. Humans in the pilot study ranged aircraft with a mean absolute error of 50.34%. The wide-baseline stereo system ranged aircraft within 2 kilometers with a mean …
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Planar shock wave interaction with a multiphase cylinder
… was observed, using a high-speed multiple-CCD (charge coupled device) camera, that an instability occurs as the shock wave bypasses the slow-moving column of gas. This produced evident perturbation at the interface. The flow morphology of the gas column consists of a pair of counter-rotating …
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REGULARIZATION METHODS FOR ILL-POSED POISSON IMAGING
<P>The noise contained in images collected by a charge coupled device (CCD) camera is predominantly of Poisson type. This motivates the use of the negative logarithm of the Poisson likelihood in place of the ubiquitous least squares t-to-data. However, if the underlying mathematical model is …
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REGULARIZATION METHODS FOR ILL-POSED POISSON IMAGING
<P>The noise contained in images collected by a charge coupled device (CCD) camera is predominantly of Poisson type. This motivates the use of the negative logarithm of the Poisson likelihood in place of the ubiquitous least squares t-to-data. However, if the underlying mathematical model is …
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