Automatic train-line air brake pressure monitoring system
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United States of America Patent
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-
Nov 30, 1982
Grant Date -
N/A
app pub date -
May 16, 1980
filing date -
May 16, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an automatic train-line air brake pressure monitoring system, a peak detector and hold circuit determines the peak voltage of an input signal representing the air pressure in the air brake system. A signal representing the present peak voltage of the input signal from the previously detected peak voltage is subtracted from the presently detected peak voltage to provide a subtraction output signal such that signals representative of the air brake pressure can be generated. The monitoring system may provide emergency air brake condition signals, as well as a number of programmable monitoring signals representative of different pressures within the air brake pressure system.
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