Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1986-06-02
1988-08-30
Leung, Philip H.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 585R, G01R
Patent
active
047679816
ABSTRACT:
An improved moisture detection apparatus for use in detecting moisture in discrete objects brought seriatim to a sensing zone. The apparatus includes structure for transmitting a beam of microwave energy having a planar wavefront through a portion of the object brought to the sensing zone and utilizing signal processing structure for selectively providing peak detection or averaging integration of the microwave beam signal in providing desired accuracy in the determination of the moisture content of such objects which may vary in uniformity of the moisture content thereof. Microwave absorber material is provided in the signal path between the microwave horns and the object. The invention includes structure for accurately aligning the horns notwithstanding the use of an opaque conveyor for bringing the objects to the sensing zone interposed between the horns.
REFERENCES:
patent: 2659860 (1953-11-01), Breazeale
patent: 3290598 (1966-12-01), Thomas
patent: 3295133 (1966-12-01), Emerson et al.
patent: 3460030 (1969-08-01), Brunton et al.
patent: 3499499 (1970-03-01), Bilbrough
patent: 3501692 (1970-03-01), Kluck
patent: 3534260 (1970-10-01), Walker
patent: 3553573 (1971-01-01), Lundstrom et al.
patent: 3681684 (1972-08-01), Busker et al.
patent: 3693079 (1972-09-01), Walker
patent: 3815019 (1974-06-01), Wiles
patent: 3818333 (1974-06-01), Walker
patent: 4103224 (1978-07-01), Taro et al.
patent: 4104584 (1978-08-01), Miyai et al.
patent: 4131845 (1978-12-01), Pakulis
patent: 4206399 (1980-06-01), Fitzky et al.
patent: 4514680 (1985-04-01), Heikkila et al.
patent: 4546311 (1985-10-01), Kochel
patent: 4620146 (1986-10-01), Ishikawa et al.
5th European Microwave Conference (Hamburg, Germany), pp. 223-227, Sep. 1975, "A Microwave Attenuation Comparator as an Industrial On-Line Moisture Controller", Jerzy Kolinski.
IEEE Transaction on Industrial Electronics and Control Instrumentation, vol. IECI-23, No. 4, pp. 364-370, Nov. 1976, published by Institute of Electrical and Electronic Engineers, N.Y., N.Y., Title: An Improved Microwave Method of Moisture Content Measurement and Control, Authors: A. Kraszewski and S. Kulinski.
Advanced Moisture Technology, Inc.
Gaffin Jeffrey A.
Leung Philip H.
LandOfFree
Moisture content detector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Moisture content detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moisture content detector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2090500