Possibility to Use Acoustic Device Pam-1 to Determine Quality Characteristics of Wool Fiber

Abstract

In this article, we consider the geometric properties of local wool, determined by the standard length method on a comb analyzer and thickness using a micrometre, and also on an acoustic PAM-1 instrument. The results of the experiments using the standard procedure showed that the weighted average length and thickness index is higher for the wool fibres of the sheared breed of sheep. The results of the experiments on the acoustic device showed that the coarser and irregular fibres, the less the density of the fibres in the chamber, and consequently the more intense passage of the sound pulse. The result obtained on the PAM-1 device is an affirmation of the fact that fibres of the sheared breed of sheep are coarser and irregular, that is, with two methods for evaluating wool fibres, similar results were obtained.The influence of mass, humidity and diameter of the samples on the transmission of the sound signal with the use of the PAM-1 device.