DEVICE AND METHOD FOR PROCESSING AND MEASURING PROPERTIES OF A MOVING ROD OF MATERIAL
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United States of America Patent
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N/A
Issued Date -
Mar 29, 2012
app pub date -
Sep 23, 2011
filing date -
Sep 28, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Device and method for processing and measuring properties of a moving rod of tobacco processing industry. Device includes a microwave measurement device in which endless rod is conveyable through microwave resonator from input side to output side. Microwave generator is included to generate a measurement signal having output frequency f0 and to supply measurement signal to input side of microwave resonator. At least one analysis arrangement includes a mixer, a low-pass filter, and an analog-to-digital converter in series, and local oscillator to generate a signal with local frequency fLO. Mixer is connected to port of microwave resonator and to output of local oscillator to generate difference signal of frequency fIM, which is less than f0 and corresponds to a difference of frequencies f0 and fLO. Low-pass filter is structured to pass output signal of mixer with intermediate frequency fIM, and filter higher frequency signal portions.
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