Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Inline detection of gypsum panel calcination
The present invention is directed to a method of determining a free moisture content and/or a degree of calcination of a gypsum panel. The method comprises the following: (a) transmitting a microwave beam through at least a first portion of the gypsum panel, such that said microwave beam is a transmitted microwave beam; (b) receiving the transmitted microwave beam to form a received microwave beam; (c) determining a phase shift and an attenuation from the received microwave beam; (d) repeating steps (a) to (c) for at least a second portion of the gypsum panel, such that a plurality of phase shifts and a plurality of attenuations is obtained; (e) using at least one empirical factor to correct the plurality of attenuations, producing a plurality of corrected attenuations; (f) calculating a raw moisture content of the gypsum panel from the corrected attenuations wherein the raw moisture content comprises a raw free moisture content and a raw crystal moisture content; (g) using a calibration factor to correct the plurality of phase shifts, producing a plurality of corrected phase shifts; (h) determining a density of the gypsum panel from the corrected phase shifts; and (i) calculating a final moisture content of the gypsum panel from the density and from the raw moisture content wherein the final moisture content comprises a final free moisture content and a final crystal moisture content.
Inline detection of gypsum panel calcination
The present invention is directed to a method of determining a free moisture content and/or a degree of calcination of a gypsum panel. The method comprises the following: (a) transmitting a microwave beam through at least a first portion of the gypsum panel, such that said microwave beam is a transmitted microwave beam; (b) receiving the transmitted microwave beam to form a received microwave beam; (c) determining a phase shift and an attenuation from the received microwave beam; (d) repeating steps (a) to (c) for at least a second portion of the gypsum panel, such that a plurality of phase shifts and a plurality of attenuations is obtained; (e) using at least one empirical factor to correct the plurality of attenuations, producing a plurality of corrected attenuations; (f) calculating a raw moisture content of the gypsum panel from the corrected attenuations wherein the raw moisture content comprises a raw free moisture content and a raw crystal moisture content; (g) using a calibration factor to correct the plurality of phase shifts, producing a plurality of corrected phase shifts; (h) determining a density of the gypsum panel from the corrected phase shifts; and (i) calculating a final moisture content of the gypsum panel from the density and from the raw moisture content wherein the final moisture content comprises a final free moisture content and a final crystal moisture content.
Inline detection of gypsum panel calcination
STAV ELI (Autor:in) / MOSHE DANNY (Autor:in)
04.06.2024
Patent
Elektronische Ressource
Englisch
IPC:
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
GYPSUM CALCINATION FURNACE AND GYPSUM CALCINATION METHOD
| Europäisches Patentamt | 2016
GYPSUM CALCINATION FURNACE AND GYPSUM CALCINATION METHOD
| Europäisches Patentamt | 2016