12 citations · 53 across the 40 of their papers we have counts for
5 papers · 1 filter
Physics Education using a Smartphone Accelerometer
Randall D. Peters
Described is an experiment in which a smartphone was caused to move at steady state in a vertical plane, on a path that was nearly circular. During a time interval of data acquisit…
Smart-phone Sensor of Pendulum Motion
Randall D. Peters
Described is an experiment where the embedded accelerometer of a smart-phone was used to study the free decay of a `simple' pendulum to which the phone was attached.
Amplitude Modulation Effects in Cardiac Signals
Randall Peters, Erskine James, Michael Russell
A subject's heart beat can be nearly invisible in a spectrum, when that spectrum is generated using conventional methods of Fourier analysis. The phenomenon has been observed in re…
Free-Oscillations Coincident with Earthquakes
Randall D. Peters
Two de-modulation algorithms are used to observe free-oscillations of the earth that are coincident with earthquakes.
Signal Peak-Tracker based on the Teager-Kaiser Energy (TKE) Operator
Randall D. Peters
Described is a modification of the TKE operator from its usual `energy form'. The resulting `peak-tracker' (or peak-detector) is especially useful in studies that involve the frequ…