Title :
Design of intelligent bearing vibration monitor
Author :
Chuey, Mark D. ; Tonda, Richard D. ; Shanblatt, Michael A.
Author_Institution :
GMI Eng. & Manage. Inst., Flint, MI, USA
Abstract :
Critical issues in the design of an intelligent sensor for monitoring bearing vibrations are discussed. The device couples a microaccelerometer with a half-active piezoresistive bridge, a second-order oversampling sigma-delta analog-to-digital converter, digital filters, logic for extracting mean squared signal values, and communication circuitry. The sensor is semiautonomous and serves as a component in a plantwide monitoring system. It can operate in monitor mode with user programmable filter coefficients, mean squared vibration threshold level and number of threshold exceptions before warning, or in accelerometer mode with up to a 14-b digital output. The design is compatible with BiCMOS circuitry and processing. Simulation results obtained with a multiple module simulator written in C are presented
Keywords :
analogue-digital conversion; computerised monitoring; digital filters; electric sensing devices; intelligent sensors; piezoelectric devices; vibration measurement; 14 bit; BiCMOS circuitry; C; communication circuitry; design; digital filters; half-active piezoresistive bridge; intelligent bearing vibration monitor; logic; microaccelerometer; monitoring; second-order oversampling sigma-delta analog-to-digital converter; threshold; user programmable; Analog-digital conversion; Bridge circuits; Circuit simulation; Coupling circuits; Delta-sigma modulation; Digital filters; Intelligent sensors; Logic devices; Monitoring; Piezoresistance;
Conference_Titel :
Industrial Electronics, Control, Instrumentation, and Automation, 1992. Power Electronics and Motion Control., Proceedings of the 1992 International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0582-5
DOI :
10.1109/IECON.1992.254376