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HUB UNIT FOR A HIGH TEMPERATURE ELECTRONIC MONITORING SYSTEM

  • US 20120166061A1
  • Filed: 12/23/2010
  • Published: 06/28/2012
  • Est. Priority Date: 12/23/2010
  • Status: Active Grant
First Claim
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1. A hub unit adapted for use in a monitoring system for monitoring engine performance parameters of a gas turbine engine while operating, the monitoring system comprising sensors mounted on the engine for sensing the engine performance parameters and generating analog sensor outputs, the hub unit comprising:

  • a housing;

    at least one signal conditioning circuit board within the housing and adapted to receive the analog sensor outputs from the sensors;

    a control circuit board within the housing, connected to the signal conditioning circuit board, and adapted to produce digital data corresponding to the analog sensor outputs;

    means on the signal conditioning circuit board for multiplexing a plurality of the analog sensor outputs generated by the sensors to produce an individual multiplexed analog output; and

    at least one amplifier with adjustable gain for scaling the analog sensor outputs of the individual multiplexed analog output to produce an individual conditioned multiplexed analog output from which the corresponding digital data are produced, the amplifier and the adjustable gain thereof being controlled by the control circuit board.

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