Method for the detection of product transitions in liquid...

Details Method for the detection of product transitions in liquid... Method for the detection of product transitions in liquid...

2005-11-29

2005-11-29

Lauchman, Layla G. (Department: 2877)

Optics: measuring and testing

For light transmission or absorption

Of fluent material

C356S442000

Reexamination Certificate

active

06970248

ABSTRACT:
A method for detecting a characteristic of a flow of a liquid in a pipe for intended use in determining a transition among or between two products forming the flow is disclosed. The method may comprise obtaining a first signal representative of the characteristic of the flow, determining when a substantial change in the characteristic is occurring; determining the transition point, and determining a transition time for the substantial completion of the transition based on parameter(s) generated from the first signal.

REFERENCES:
patent: 5172193 (1992-12-01), Payne et al.
patent: 5984262 (1999-11-01), Parsons et al.
patent: 6507401 (2003-01-01), Turner et al.
patent: 6831741 (2004-12-01), De Kruif et al.
M. C. Danao, F. A. Payne, “Determining Product Transitions in a Liquid Piping System Using a Transmission Sensor,” Transactions of the ASAE, 2003 American Society of Agricultural Engineers, vol. 46(2): 415-421.
Fred A. Payne, “Optical Sensors for Monotring Coagulation, Particulates and Performance of Separators,” Cheeseworks, Quarterly Newsletter of the Australian Cheese Technology Program, vol. 4, No. 3 2000.

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