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Full-Text Articles in Physical Sciences and Mathematics
The Pulsed Electro-Acoustic Method, Zack Gibson
The Pulsed Electro-Acoustic Method, Zack Gibson
Physics Student Research
A Pulsed Electro-Acoustic (PEA) system has been developed and is being used to study electron charge injection, transport, and relaxation in highly disordered insulating materials. The material is placed between two electrodes in a parallel plate configuration. The sample is injected with charge via electrode charging by applying a high voltage across the sample. The distribution of charge in the dielectric is measured with PEA by applying a ~100 MHz ~850 V electric pulse to displace the embedded charge, causing an acoustic pulse monitored via time-of-flight with a thin piezoelectric sensor allowing observation of charge accumulation and dissipation. Measurements of …
Opal Cubesat Data Analysis Model, Kenneth Zia, Ludger Scherliess, Michael J. Taylor
Opal Cubesat Data Analysis Model, Kenneth Zia, Ludger Scherliess, Michael J. Taylor
Physics Student Research
Understanding the Earth’s lower thermosphere (altitude range 9 km -140km) is of growing interest for many areas of research within the space weather community. The NSF sponsored OPAL (Optical Profiling of the Atmospheric Limb) mission is designed to measure temperature profile by observing the integrated line of sight of the day-time O2 A-band (~760nm) emissions on the limb. The OPAL instrument has an altitude resolution of 1.03km from 80-160km flown on a 3U CubeSat, and is expected to be launched from the ISS (International Space Station) (~400km altitude). We have developed a model of OPAL’s position and attitude of its …