Method of detecting foreign bodies in mass streams

Details Method of detecting foreign bodies in mass streams Method of detecting foreign bodies in mass streams

2005-07-26

2005-07-26

Le, N. (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

C324S634000, C324S636000, C324S640000

Reexamination Certificate

active

06922061

ABSTRACT:
The method of detecting foreign bodies in continuous mass streams of fibrous material, strand-like material or material similar to bulk goods with the aid of microwaves, in which the mass flow is led through the field of a microwave resonator and in which the change (A) in the resonant frequency, effected by the material, and the change (B) in the width of the resonance curve of the microwave resonator is determined, is distinguished in that the ratio (B/A) of the changes is evaluated and compared with corresponding averages, and the presence of a foreign body is reported when the ratio differs from the averages by more than a predefined value.

REFERENCES:
patent: 5016653 (1991-05-01), Lassiter
patent: 5397993 (1995-03-01), Tews et al.
patent: 2002/0121906 (2002-09-01), Moller et al.
patent: 0 889 321 (1999-01-01), None
patent: 63045547 (1988-02-01), None
patent: 63210757 (1988-09-01), None
patent: WO 02/09539 (2002-02-01), None
European Search Report EP 02000725, dated Aug. 6, 2002.
Thomas Boltze, “A Microwave Model For Moisture Determination In Bulk Materials And A Maximum Likelihood Estimation Algorithm”, TH1B-6, 1995 IEEE MTT-S Digest.

Affiliated with

Also associated with

Rating

Method of detecting foreign bodies in mass streams does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of detecting foreign bodies in mass streams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of detecting foreign bodies in mass streams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3394722