Browsing by Author "Pennington, Kyle"
Now showing items 1-4 of 4
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Acoustic Vector Network Analyser
(The University of Waikato, 2017)This research aims at increasing the accuracy and precision of characterising acoustic materials by adapting well-known techniques developed for the radio-frequency domain to the acoustic domain. Two novel methods are ... -
Acoustic Vector-Corrected Impedance Meter
(IEEE, 2014-12)We describe the development of a novel instrument intended for the measurement of the acoustical reflection coefficient of materials. The instrument effectively implements a one-port vector-corrected network analyzer in ... -
Determining acoustical directionality in an impedance tube using multiple fixed microphones
(School of Engineering and Advanced Technology, Massey University., 2011)Acoustic impedance of a port or object is a valuable piece of knowledge describing how well sound is transmitted or reflected. The commonly used slotted-line method is labourious and time consuming, requiring manual movement ... -
Vehicle lead-acid battery state-of-charge meter
(IEEE, 2011)We describe a state-of-charge, or “residual-capacity” meter for lead-acid batteries that intelligently synthesizes coulometric and terminal-voltage methods in a new algorithm to provide reliable, continuous readout of ...
