Operating turbine resonant blade monitor

Details Operating turbine resonant blade monitor Operating turbine resonant blade monitor

1989-03-23

1991-03-05

Myracle, Jerry W.

Measuring and testing

Vibration

Sensing apparatus

731181, G01M 1500

Patent

active

049968807

ABSTRACT:
An operating turbine monitor is described incorporating one or more acoustic sensors positioned next to a blade row of a rotor, an analog digital converter, a tachometer sensor at the rotor shaft, a memory, a synchronous averaging circuit, a subtractor circuit, and a comparator. The invention overcomes the problem of monitoring an operating tubine for order-related turbine blade vibration and for non order-related turbine blade vibration as well as for other turbine conditions.

REFERENCES:
patent: 3597963 (1971-08-01), Smejkal
patent: 4422333 (1983-12-01), Leon

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