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.
Results
Showing 1 to 20 of 33 for “"Digitizer"”.
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A low power digitizer for precision carrier band measurements
It has been found that the amplitude of the 20kHz harmonic at the output of a particular third order [Sigma][Delta] analog to digital converter drifts significantly as the temperature fluctuates. In this document, both methods of ascertaining the source of this drift and ways to reduce it are …
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Microwave chemical sensing using overmoded T-line designs and impact of real-time digitizer in the system
… room temperature. In addition, a new real-time digitizer is used in our system to replace the digital storage oscilloscope and can achieve 1 million coherent averages in 20 seconds. Signal-to-noise ratio can be greatly improved, and we take the advantage of the increased SNR and explore chemical …
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Picosecond Studies of Unimolecular Reactions
… from the streak camera. A two dimensional digitizer is used to acquire the data from the video detector. This data is then fed to a microcomputer which stores, analyzes and displays the digitized signals. Use of a computer interactive with the two dimensional digitizer allows large signal …
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Influence of an incentive program on handwashing practices and handwashing prevalence among university foodservice workers
… incentive program using ECOLAB® newly designed Digitizer™ soap dispens~r was implemented .. The handwashing system used four colordot groups and maintained a tabulation ofhandwashing frequencies for each color group. Over the 21 day incentive program period, university foodservice employees …
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Sex and Ancestry Estimation Using the Base of the Cranium
… Donated Collections, using a three-dimensional digitizer. The data was converted to linear data using the method of Franklin et al. (2005). The results showed that sexual dimorphism and ancestral differences do exist in the cranial base of European and African Americans and individuals can be …
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Sex and Ancestry Estimation Using the Base of the Cranium
… Donated Collections, using a three-dimensional digitizer. The data was converted to linear data using the method of Franklin et al. (2005). The results showed that sexual dimorphism and ancestral differences do exist in the cranial base of European and African Americans and individuals can be …
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Automatic classification of wooden cabinet doors using computer vision
… The system includes a host computer with video digitizer, two laser sources, and three video cameras to obtain profile images. This thesis describes the careful design of illumination and sensing geometry, the profile-based feature extraction process, and the classification method. The system …
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Non-Invasive Monitoring of Human Hygiene using Vibration Sensor and Classifier
… is based on a combination of geophone sensor, a digitizer, and a cost-efficient computer board in a Raspberry Shake enclosure. People’s personal hygiene habits speak volume about how they take care of their bodies and health. Maintaining good hygiene practices not only reduce your chances of …
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A model kit : a system for constructing three-dimensional interactive graphic models
… hand. An electromagnetic six degree-of-freedom digitizer mounted on a small wooden "wand", with a pushbutton mounted in the handle, tracks the user's hand in space to allow direct interaction with a computer mediated graphic operation. Models have been built out of images of cities, robots. the …
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Power analysis and message decoding of laser engagement systems
… decoding and power measurement calculations. Digitizer selection will be discussed, as well as an analysis of the algorithmic method used for decoding the messages from the bursts.
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Metricizing' non-metric craniofacial traits: Application of three dimensional geometric morphometric analysis to ancestral identification
… to statistically defined groups; A 3-D digitizer was used to collect data from 39 craniofacial landmarks to capture the form of several phenotypic facial characteristics. The sample consisted of individuals from four different geographic locations (Precontact Peru, Historical China, …
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Development of a machine vision based oyster meat sorter
… light illumination to "freeze" the images, a digitizer/transmitter and a Personal Computer as an image processing unit. Software synchronizes the flash light and digitization of images and calculates projected area of each meat using the planimeter method. The grading results are sent to a …
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Automated evaluation of radiodensities in a digitized mammogram database using local contrast estimation
… and digitized using more than one type of X-ray digitizer. The automated algorithms developed in this thesis have been validated by comparing the estimation results using 40 of these mammograms with those predicted by a previously established manual segmentation technique. The automated …
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High frequency ultrasonic characterization of human skin In vivo
… transducers, a pulser/receiver, high-speed digitizer, 3-axis scanning system, and a PC. Data collected using three different transducers with center frequencies of 28, 30 and 44 MHz were processed to determine the characteristics of normal human dermis and subcutaneous fat. Attenuation …
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A SYSTEM lOR GAIT ANALYSIS
… trajectories is input to the computer via an X,Y digitizer. Software was written to control the data acquisition process and to recover and display the data for analysis. This thesis shows that automated synchronous acquisition of both E.M.G. data and kinematic data in human gait is possible, and …
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Computer-aided small scale site analysis and planning
… the user collects data from source maps using a digitizer and extrapolates additional data from this source. The data is then converted to a grid format for mapping purposes. In the site selection phase, the user implements the ATTRACTIVENESS program to determine the suitability of various sites …
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Analog to digital converters for CMOS imagers
… slope A/D architecture with a subnanosecond time digitizer shows promise for optimizing figure of merit over pipelined and folding interpolating approaches. This work focuses on the design issues of the 3MHz single-slope based A/D converter. Architectures appropriate for extending this A/D …
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Manufacturing and Instrumentation of an Open End Compressed Air Shock Tube
… Embedded Controller as well as three PXI 5114 digitizer cards with the Virtual Instrument coded using LabView. The data was written to a text file that was then transferred to MATLAB for post processing using a Savitzy-Golay filter to clean up the signal noise. The shock tube was driven using …
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CAD enabling smart handtools
… Nishanchi is a handheld inkjet printer and 3D digitizer that can be used to print raster graphics on non-conformable surfaces.
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