Razvoj prenosnog uređaja za višekanalno merenje vibracija

Abstract

A Portable Data Logger (PDL) is the target instrument to be designed. Its internal architecture is conceived upon an originally developed acquisition card connected to an advanced touch screen panel. This concept of multichannel analyzer incorporates a set of four accelerometer input lines, as well as four common analog inputs (4-20 mA or 0-10V). A vast selection of assorted signal analysis functions is available with this device. Market review on a multifunctional multichannel signal analyzer shows a lack of such equipment in the range of powerful jet affordable devices. This paper describes a pure engineering attempt to develop a novel vibro-diagnostic instrument, consisting of conventional modules but aimed for demanding technical applications. The PDL is designed to monitor a cluster of accelerometer signals, in order to determine: vibration severity (RMS value of vibration velocity), peak tones of the spectrum (FFT), time graph of signal trends, also to display and exchange data via conventional communication ports and protocols. Concept of a novice portable data logger is based upon idea of composing a dedicated acquisition card with sophisticated touch screen HMI.