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Full-Text Articles in Physics

Characterization Of Magnetic Thin Films Using The Magneto Optic Kerr Effect, Nicholas J. Savino Apr 2018

Characterization Of Magnetic Thin Films Using The Magneto Optic Kerr Effect, Nicholas J. Savino

Student Scholar Showcase

Understanding magnetic properties of materials allows for advances in applications such as data storage. The Magneto-Optic Kerr Effect (MOKE) displays the reflective response a magnetic material has to a magnetic field. When polarized light reflects off of a magnetic material, the polarization orientation can change. The application of an external magnetic field can affect how much this polarization changes in a non-linear manner. Hysteresis loops are created when examining the relationship between intensity of the reflected light to the applied magnetic field provide information about magnetic properties of that material, such as the coercive field and field retention. Preliminary measurements ...


Preliminary Results From A Ground Based Magnetometer Rotation Table, Rachel Newman, April Gross, Jolene Johnson, Kaye Smith, Erick Agrimson, James Flaten Aug 2016

Preliminary Results From A Ground Based Magnetometer Rotation Table, Rachel Newman, April Gross, Jolene Johnson, Kaye Smith, Erick Agrimson, James Flaten

2017 Academic High Altitude Conference

Understanding high altitude balloon rotation is important for many types of scientific measurements, therefore, balloon and payload rotation is a continuing area of interest and research. In this work, we present results obtained from an Arduino logged magnetometer rotated on a ground based rotation table. This table allowed us to precisely rotate and locate the Arduino logged magnetometer. We compare the Arduino logged results with “known magnetic field orientation” using an AIM rocketry altimeter. This comparison allowed us to test the accuracy of our Arduino logged results and the sampling capabilities of our magnetometer system using different rotational speeds.


Nasa Nebraska High Altitude Ballooning And The Fab Lab, Kendra Sibbernsen, Michael Sibbernsen Jun 2015

Nasa Nebraska High Altitude Ballooning And The Fab Lab, Kendra Sibbernsen, Michael Sibbernsen

2017 Academic High Altitude Conference

The NASA Nebraska High Altitude Ballooning (N-NHAB) program has collaborated on projects with the Fab Lab at Metropolitan Community College (MCC) in Omaha, NE. Based on the MIT Center for Bits and Atoms, the Fab Lab contains 3D printers, laser cutters, CNC machines, and much more. In its trial phase, the Fab Lab encouraged projects from the sciences. In response to this request, one of these projects involved a HAB student who wanted to streamline custom circuitry for measuring the efficiency of solar cells. The circuit pathways were designed and precisely cut from a copper sheet and the laser cutter ...


Producing Electricity With Solar Cells, Chris Emery, Rob Snyder Jan 2015

Producing Electricity With Solar Cells, Chris Emery, Rob Snyder

Science and Engineering Saturday Seminars

No abstract provided.


Open Source Electronics For Laboratory Physics, Zengqiang John Liu Jul 2014

Open Source Electronics For Laboratory Physics, Zengqiang John Liu

Physics and Astronomy Faculty Presentations

Open-source electronics are electrical circuits and devices whose designs are released to the public by the designers, so others may modify and improve them. Using open-source data acquisition electronics in laboratory physics will dramatically reduce the cost of laboratory electronics and empower instructors to develop new laboratory activities, demonstrations and exploratory projects with students. This workshop will improve participants' understanding of open-source electronics and their applications in laboratory physics. Many laboratory physics sensors and open-source devices will be introduces and demonstrated. The workshop provides hands-on experiences in projects using laboratory physics sensors with an award-winning, low-cost, open-source electronic data acquisition ...