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Title: Centrifugal unbalance detection system

Abstract

A system consisting of an accelerometer sensor attached to a centrifuge enclosure for sensing vibrations and outputting a signal in the form of a sine wave with an amplitude and frequency that is passed through a pre-amp to convert it to a voltage signal, a low pass filter for removing extraneous noise, an A/D converter and a processor and algorithm for operating on the signal, whereby the algorithm interprets the amplitude and frequency associated with the signal and once an amplitude threshold has been exceeded the algorithm begins to count cycles during a predetermined time period and if a given number of complete cycles exceeds the frequency threshold during the predetermined time period, the system shuts down the centrifuge.

Inventors:
 [1];  [2];  [3]
  1. Martinez, GA
  2. Graniteville, SC
  3. Aiken, SC
Issue Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
OSTI Identifier:
874248
Patent Number(s):
6350224
Assignee:
Westinghouse Savannah River Company, LLC (Aiken, SC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES B04B - CENTRIFUGES
DOE Contract Number:  
AC09-96SR18500
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
centrifugal; unbalance; detection; consisting; accelerometer; sensor; attached; centrifuge; enclosure; sensing; vibrations; outputting; signal; form; sine; wave; amplitude; frequency; passed; pre-amp; convert; voltage; pass; filter; removing; extraneous; noise; converter; processor; algorithm; operating; interprets; associated; threshold; exceeded; begins; count; cycles; predetermined; time; period; complete; exceeds; shuts; time period; pass filter; sine wave; /494/73/702/

Citation Formats

Cordaro, Joseph V, Reeves, George, and Mets, Michael. Centrifugal unbalance detection system. United States: N. p., 2002. Web.
Cordaro, Joseph V, Reeves, George, & Mets, Michael. Centrifugal unbalance detection system. United States.
Cordaro, Joseph V, Reeves, George, and Mets, Michael. Tue . "Centrifugal unbalance detection system". United States. https://www.osti.gov/servlets/purl/874248.
@article{osti_874248,
title = {Centrifugal unbalance detection system},
author = {Cordaro, Joseph V and Reeves, George and Mets, Michael},
abstractNote = {A system consisting of an accelerometer sensor attached to a centrifuge enclosure for sensing vibrations and outputting a signal in the form of a sine wave with an amplitude and frequency that is passed through a pre-amp to convert it to a voltage signal, a low pass filter for removing extraneous noise, an A/D converter and a processor and algorithm for operating on the signal, whereby the algorithm interprets the amplitude and frequency associated with the signal and once an amplitude threshold has been exceeded the algorithm begins to count cycles during a predetermined time period and if a given number of complete cycles exceeds the frequency threshold during the predetermined time period, the system shuts down the centrifuge.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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