Imperforate bowl: centrifugal separators – With condition responsive means – For controlling drive of driven means within bowl
Patent
1997-10-01
1998-09-01
Cooley, Charles E.
Imperforate bowl: centrifugal separators
With condition responsive means
For controlling drive of driven means within bowl
494 10, 494 37, 73462, B04B 1300, G01M 122
Patent
active
058003312
ABSTRACT:
Apparatus and a method for detecting imbalance and for identifying rotors in centrifuges is disclosed. An accelerometer measures the vibration of a rotating drive system as it accelerates from rest to a predetermined speed, and a signal processing system monitors changes in the magnitude of measured vibration energy. The processing system determines the power spectrum density of the measured values and from this the frequency spectrum and the total energy spectrum of the measured vibration are determined. These values may be used to provide an identifying profile which can be used as a reference for later identification of drive systems and rotors in operating systems, and for monitoring and controlling such operating systems.
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Cooley Charles E.
Cooper George M.
Leavitt John J.
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