In-line hot-wire sensor for slurry monitoring

Details In-line hot-wire sensor for slurry monitoring In-line hot-wire sensor for slurry monitoring

2006-03-21

2006-03-21

Tsai, Carol S. W. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Chemical analysis

C702S032000, C073S861040, C073S204270, C451S041000, C451S028000, C451S287000

Reexamination Certificate

active

07016790

ABSTRACT:
An in-line hot-wire sensor for monitoring the mixing and the flow rate of slurry is disclosed. The hot-wire sensor may include a number of resistors organized into a Wheatstone bridge, as well as a frequency-domain transform mechanism. The resistors include a hot-wire resistor that is placed in-line with the slurry after substances have been mixed to become the slurry. The Wheatstone bridge thus yields a signal that is transformed to the frequency domain by the frequency-domain transform mechanism, such as by performing a Fast Fourier Transform (FFT) of the signal. The frequency-domain transform is used to monitor the mixing of the substances into the slurry, and the flow rate of the slurry. The signal may be amplified prior to transformation to the frequency domain.

REFERENCES:
patent: 4317178 (1982-02-01), Head
patent: 4334186 (1982-06-01), Sasayama et al.
patent: 4433576 (1984-02-01), Shih et al.
patent: 4458529 (1984-07-01), Nagaishi et al.
patent: 4587842 (1986-05-01), Handtmann
patent: 4648271 (1987-03-01), Woolf
patent: 4658654 (1987-04-01), Ozaki et al.
patent: 5056928 (1991-10-01), Aoki et al.
patent: 5225126 (1993-07-01), Alles et al.
patent: 5297438 (1994-03-01), Alles et al.
patent: 5681989 (1997-10-01), Kanke et al.
patent: 5756898 (1998-05-01), Diatschenko et al.
patent: 5934974 (1999-08-01), Tzeng
patent: 6019946 (2000-02-01), Castillo et al.
patent: 6077783 (2000-06-01), Allman et al.
patent: 6122956 (2000-09-01), Klausner et al.
patent: 6183656 (2001-02-01), Ide et al.
patent: 6327905 (2001-12-01), Itsuji et al.
patent: 6378378 (2002-04-01), Fisher
patent: 6431953 (2002-08-01), Carter et al.
patent: 6457852 (2002-10-01), Hiraoka et al.
patent: 6619142 (2003-09-01), Forster et al.
patent: 6684695 (2004-02-01), Fralick et al.
patent: 2001/0045121 (2001-11-01), Chiba et al.
patent: 2002/0173223 (2002-11-01), Gitis et al.
patent: 2003/0056584 (2003-03-01), Park
patent: 2003/0119197 (2003-06-01), Bonne et al.
patent: 2003/0217737 (2003-11-01), Ismailov
patent: 2004/0038623 (2004-02-01), Chandrasekaran
“Word IQ”, www.wordiq.com, copyright 2004.
“A very Basic Introduction to Time/Frequency Domains”, www.theparticle.com/cs/mcs/signalnotes.pdf, Mar. 10, 2004.

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