Flow sensor signal conversion

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system

Reexamination Certificate

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C073S861520, C073S202500

Reexamination Certificate

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07043374

ABSTRACT:
A method of obtaining at least one representation of a characteristic function of a sensor from a test fluid during calibration of the sensor according to a sensor model having a transfer function operating on flow rate, at least one sensor property and at least one fluid property and employing the at least one representation of the characteristic function to determine flow rates through the sensor during operation with an arbitrary fluid.

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patent: 5944048 (1999-08-01), Bump et al.
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patent: 6561218 (2003-05-01), Mudd
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patent: 2002/0198668 (2002-12-01), Lull
patent: 2004/0074311 (2004-04-01), Lull
patent: 0 834 723 (1998-04-01), None
patent: 0 834 723 (1998-04-01), None
Komiya, K., Higuchi, F. and Ohtani, K., Characteristics of a thermal gas flowmeter, Department of Control Engineering, Kyushu Institute of Technology, accepted for publication Nov. 18, 1987, reprinted in Rev. Sci. Instrum. 59(3), Mar. 1988, pp. 477-179.
Sheriff, D., “Mass Flow Controller Features Digital Calibration” Feb. 1, 1993, Solid State Technology, Cowan Publ. Corp., Washington, US pp. 33-34, 36, XP000343996 ISSN: 0038-111X.

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