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 16 of 16 for “"High speed data acquisition"”.
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A high speed data acquisition system
… world around us. The interface between analogue data sources and these digital systems is the realm of analogue to digital converters (ADCs) that acquire digital snap-shots of data for further processing. Some applications require high sampling rates or high resolution data (or both). In addition …
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High speed data acquisition system for optical coherence tomograpy
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2001.
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Development of a High Speed Data Acquisition System for Spark Ignition Engine
… Therefore an engine model based on experimental data had to be developed. Using Matlab/ Simulink, xPC Target and data acquisition hardware a model of the single cylinder engine was developed. These models were developed by taking measurements of the engines dynamics such as engine speed, crank …
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High-Speed Data Acquisition and FPGA Detected Pulse Blanking System for Interference Mitigation in Radio Astronomy
… This thesis documents the development of a high-speed data acquisition system used to record data from 7- and 19-element phased array feeds. The system supports synchronous sampling over all channels and streams data to disk allowing spatial filtering to be applied in post-processing. The …
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Applied high resolution digital control for universal precision systems
… describes the design and characterization of a high-resolution analog interface for dSPACE digital control systems and a high-resolution, high-speed data acquisition and control system. These designs are intended to enable higher precision digital control than currently available. The dSPACE …
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Drop Impact Reliability Testing Lead-Free Chip Scale Packages
… observed by each system. To enable this study a high-speed data acquisition system, capable of in-situ detection of transitional solder interconnect failure, was developed at Cal Poly for drop impact reliability testing. Edge-bonding is shown to significantly improve drop impact reliability of …
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Design of a single element 3D ultrasound scanner
… of the tank as well as move vertically in depth. High resolution positioning feedback (~1[mu]m) and control enables flexible positioning of the transmitter and the receiver around the cylindrical tank; exchangeable transducers enable algorithm testing with varying transducer frequencies and beam …
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Mechanical behavior of a ceramic matrix composite material
… of an IBM compatible personal computer with a high speed data acquisition board. Software has been written which manipulates the AU signals in both the time and frequency domains, resulting in quantitative measures of the mechanical response of the material. This paper will compare the measured …
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Using Accelerometers to Quantify Infant General Movements as a Tool for Assessing Motility to Assist in Making a Diagnosis of Cerebral Palsy
… technique of video footage review. Additionally, data could be reanalyzed using updated signal processing algorithms. An accurate collection of data allows physicians to quickly review an infant's entire history of motion studies. Physical information can be inferred from the data. Correlation …
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Hydrogel Design Optimization for Measuring Ultrasound Using Laser Doppler Vibrometry
… conventional ultrasound, especially in achieving highresolution imaging of tissue structures and the elimination of liquid coupling mediums and probe-to-body contact. The thesis presents an innovative approach to enhance the performance of LUS signals in human tissue by utilizing hydrogels, …
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Gas engines for domestic engine-driven heat pumps
… lubrication system, emissions monitoring and high speed data acquisition for in-cylinder pressure measurement and analysis. Two new experimental cylinder heads have been designed together with new induction and exhaust systems, both to improve performance and to enable further investigation of …
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A Common Readout Driver for the COMPASS Experiment
… been carried out as part of this thesis. <br>Data of up to 6912 channels were processed by a single CATCH and trigger rates of 115kHz, far above the expected maximum, were successfully attained. <br>Depending on the event size the data rate within the CATCH module was determined, reaching …
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Behaviour of steel fibre reinforced high performance concrete under biaxial loading conditions
… of the behaviour of steel fibre reinforced high performance concrete (SFRHPC) under biaxial loading conditions. Also included are constitutive models to enable numerical predictions of the strength behaviour of such a material. Within the experimental stage a large biaxial test machine was …
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Energy efficiency analysis of converter-fed induction motors
… of industrial electrical energy. As Variable Speed Drives continue to dominate various industrial processes, there is need for stakeholders to fully understand and quantify the converter-fed motor losses over a wide range of operating conditions. Such knowledge is crucial for both …
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Multi-Physics Sensing and Real-time Quality Control in Metal Additive Manufacturing
… regardless of the shape variations. Due to the highly complex and dynamic nature of the laser powder bed fusion, improving the printing quality is challenging. Research gaps exist from many perspectives. For example, the lack of understanding of multi-physical melt pool dynamics fundamentally …
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High Speed Fiber Optic Spectrometer
… principle and mathematical model of a novel high speed fiber optic spectrometer (HSFOS). In addition, the performance analysis is conducted and preliminary experimental results are listed and discussed. Such a spectrometer is highly desired by the ever-increasing applications of fiber optic …