Patent
Process and apparatus for sorting samples of material
TLDR
In this article, an optical sorter for beans and grains, including a detector providing a signal pulse for each of the sampled objects, and a signal processor for receiving and amplifying the pulse, is presented.Abstract:
An optical sorter for beans and grains, including a detector providing a signal pulse for each of the sampled objects, and a signal processor for receiving and amplifying the pulse. The signal processor measures the amplitude of the amplifier pulse and compares the amplitude value to a predetermined standard value. The pulses are counted up to a predetermined count, and the number of pulses having an amplitude value above the predetermined standard value out of the total number of counted pulses, is counted. The counted number of pulses having an amplitude above the standard value is compared to a preselected number, and the gain of the signal processor is adjusted with a negative feedback signal to adjust toward the preselected number, the counted number of pulses in the next count having an amplitude value at the predetermined standard value. The sorter uses the peak amplitude value of the pulse which is determined by taking a derivative of the signal and determining the zero crossing time of the derivative signal.read more
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Patent
Near object detection system
Michael Joseph Delcheccolo,Mark E Russell,Walter Gordon Woodington,Joseph S. Pleva,Rees H. Barteld Van +4 more
TL;DR: In this paper, a near object detection (NOD) system includes a plurality of sensors, each of the sensors for providing detection coverage in a predetermined coverage zone and each sensor including a transmit antenna for transmitting a first RF signal, a receive antenna for receiving a second RF signal.
Patent
Radar detection method and apparatus
Walter Gordon Woodington,Michael Joseph Delcheccolo,Joseph S. Pleva,Mark E. Russell,H. Barteld Van Rees +4 more
TL;DR: In this paper, a radar detection process includes computing a derivative of an FFT output signal to detect an object within a specified detection zone, where the range of the object is determined as a function of the frequency at which the zero crossing occurs.
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Patent
Determination of characteristics of material
TL;DR: In this paper, a system for automatically inspecting matter for varying composition comprises one or more detection stations (131) through which a stream of matter is advanced and particular materials therein are detected through their diffusely reflected IR spectra, if any, and/or through their variation of an electromagnetic field by their metallic portions.
Patent
Switched Beam Antenna Architecture
TL;DR: In this paper, a multiple beam array antenna system with a plurality of radiating elements provided from a stripline-fed open-ended waveguide coupled to a Butler matrix beam forming network is described.
References
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Patent
Agricultural product sorting
TL;DR: In this paper, the authors sorted agricultural products into acceptable and unacceptable categories based on colour characteristics as they descend in a chute from a loading hopper and vibratory feeder through a zone of illumination.
Patent
Optical sorting apparatus
Fernando Castaneda,Roy Jimenez +1 more
TL;DR: In this paper, an annular analysis head is employed with the objects being analyzed falling through the central opening, which is comprised of a pair of annular rings with a predetermined gap between the rings.
Patent
Offset compensating circuit
TL;DR: In this paper, a method and apparatus for cancelling a deviation in an input signal due to drift, line or background noise, changes in circuit component characteristics due to aging, and the like is presented.
Patent
Variable gain amplifier
TL;DR: In this paper, a variable gain amplifier with digital output is described for input range selection in chart recorders or other measuring instruments, and a software routine adjusts the gain after digitizing to the correct value for the selected range.
Patent
Light and color detecting scanner for a sorting apparatus
Tor Arild,Russell R Ames +1 more
TL;DR: An optical scanner for light detection and color ratiometric measuring for use in apparatus to sort small particles such as seed and beans which are projected or propelled through the scanner at relatively high speeds to be scanned on all sides by a narrow light plane and viewed by a plurality of photoelectric devices as mentioned in this paper.