Stewart, Robert R.Hons, Michael S.2017-12-182017-12-182008Hons, M. S. (2008). Seismic sensing: comparison of geophones and accelerometers using laboratory and field data (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/2190http://hdl.handle.net/1880/103191Bibliography: p. 147-148some pages are in colourAccelerometers, based on micro-electromechanical systems (MEMS), and geophones are compared in theory, laboratory testing and field data. Both sensors may be considered simple harmonic oscillators. Geophone output is filtered ground velocity and represents its own domain. Modeling shows that geophone and digital accelerometer output is similar in appearance. In laboratory tests, both sensors matched their modeled responses over a wide range of amplitudes. Since the response is accurate in practice, it is used to calculate ground acceleration from geophone output. Comparison of acceleration field data at Violet Grove and Spring Coulee shows most reflection energy is effectively identical from 5 Hz to over 150 Hz. Some consistent differences were noted under strong motion and in the noise floors. In general, when sensor coupling is equivalent, the data quality is equivalent.xv, 157 leaves : ill. ; 30 cm.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.master thesis10.11575/PRISM/2190