Automatic test parameters compensation of a real time fluid analysis sensing device
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United States of America Patent
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Oct 13, 1998
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N/A
app pub date -
Jan 16, 1996
filing date -
Jul 16, 1993
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Abstract
A method for automatic fluid flow compensation in disposable fluid analysis sensing devices is disclosed. The method is designed to keep the test conditions from sample to sample substantially unchanged. This is accomplished by using information about the preceding and/or current test measurements to automatically offset parameter variations of the disposable devices and the reading apparatus caused by manufacturing tolerances, wear of the mechanical parts, fluid viscosity differences and others. At each consecutive test measurement the method uses a compensation of the position of the actuating element to offset the difference between the previous test measurement and a factory pre-specified value. The method and system result, over the lifetime of the instrument, in a substantially unchanged flow of the analyzed fluid and reduction of the influence of a variety of external factors on the test measurements.
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