"Amplifier Design for Underground Anomaly Detection Using Naturally Occ" by Dakota James Kirby

Date of Graduation

2017

Document Type

Thesis

Degree Type

MS

College

Statler College of Engineering and Mineral Resources

Department

Lane Department of Computer Science and Electrical Engineering

Committee Chair

Roy S Nutter

Committee Co-Chair

James Smith

Committee Member

Matthew Valenti

Abstract

Most high-frequency signals are unable to penetrate the Earth's surface and lower frequencies have a much higher chance of penetrating the surface. Ultra-low frequencies can be used to penetrate the Earth's crust, but the frequency and background noise are a large problem that prevents from detecting these low frequency signals. This thesis describes the design for a small and lightweight low-frequency amplifier that can receive low voltage signals and amplify them to a level that could be used to do further analysis. The proposed amplifier design was capable of handling inputs as low as 1 muV and amplifying them to a level of 1mV. This thesis also describes how the amplifier can be tested along with the rest of a low-frequency detection system.

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