Correlations of stage decay and moisture content of Mollucan Sau (Albizia falcataria) using PC-based ultrasonic technique
Abstract
A PC-based detection system using ultrasonic technique was designed and developed for determining the stage decay of Mollucan Sau (Albizia falcataria). Using the through-transmission instrument set-up, correlations of ultrasonic wave amplitude to moisture content and weight loss due to decay of the wood were determined. The wave amplitude was measured using a peak-detector connected to an amplifier circuit and interfaced in a microcomputer using a data acquisition card (DAC) for faster collection of data and analysis.
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