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determine the feasibility of commercial, off-the-shelf, and potentially low-cost ultra-wideband radio hardware to serve as a measurement tool for the moisture content of building materials. The study examined both reflections from and transmission through an envelope assembly when pulses with a center frequency of 4.7 GHz were emitted towards the materials. The reflected energy was found to be the best measure of moisture content. Tests on oriented strand board, plywood, and gypsum board showed that a linear trend was found between the reflected energy and moisture content of the two wood products, but the range of moisture contents in the gypsum boards was insufficient to have any appreciable effect on the signal returned. The ability to independently measure the moisture content of several layers with a single scan was also examined, but the data suggest that more work is needed to accomplish this goal.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899
Ref: http://www.fire.nist.gov/bfrlpubs/build06/PDF/b06020.pdf
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Why you are doing initial moisture content critical moisture content and equilibrium moisture content test?
if we know initial moisture content of the object we can identify how much drying energy required for dry the same moist material. if it is a food material we have to reduce the moisture content upto certain level, otherwise it may be destroyed. if we know the initial moisture content of same food object, we can reduce its moisture content upto 10% of its initial moisture content.
Maximum bulking in sand and in what moisture content?
The maximum bulking of sand is in 13% to 14% moisture content. It's likely to be 13.8% moisture content.
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Discuss why materials with moisture content have high k-values
What is the moisture content of fruit powder?
The moisture content in fruit powder should be zero. Any moisture will cause the powder to cling together, and encourage the growth of mould.
What instruments measure air moisture?
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How does a moisture meter give a reading of the moisture content of wood?
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What is the requirement of wood pellets moisture content after cooling?
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Can you cut panel boards with a skil saw blade made for concrete?
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What are the four major types of air masses according to moisture content?
Precipitation
