DEVICE AND SYSTEM FOR DIAGNOSING BEARING OF ROTATING MACHINE, MOBILE TERMINAL EQUIPMENT, AND FUNCTION EXTENSION CARD

摘要

PROBLEM TO BE SOLVED: To provide a bearing diagnostic device for a rotating machine capable of measuring vibration easily. SOLUTION: In this bearing diagnostic device, a vibration sensor 15 for detecting the vibration of a bearing of a rotating machine is connected to a PC card, a step-up chopper circuit is built in to generate a driving electric power source for the vibration sensor 15 based on an electric power source supplied from a PDA 17 side, and a detected vibration signal is converted into a digital data to be transferred to the PDA 17 side. A PDA 17 is provided with a measuring & diagnostic program for diagnosing an abnormality of the bearing 2, based on the data transferred from a PC card 18 side. COPYRIGHT: (C)2005,JPO&NCIPI