发明名称 |
METHOD FOR SELECTIVELY MEASURING THE FILLING MATERIAL IN RUNNING-MATERIAL WEBS, PARTICULARLY PAPER SHEETS |
摘要 |
<p>By applying infra-red radiation as well as beta-radiation measurement techniques combined with a characteristic x-radiation measurement technique using a mono-energetic and stable x-ray source, it is possible to carry out a very accurate selective filler measurement on a moving paper web containing two fillers, provided that at least one of the two fillers has a distinct absorption band in the infra-red radiation range. The web is irradiated by the individual measurement rays, and the detected measurement signals resulting from the irradiations of the web are processed in a micro-computer.</p> |
申请公布号 |
EP0272645(B1) |
申请公布日期 |
1992.11.04 |
申请号 |
EP19870118822 |
申请日期 |
1987.12.18 |
申请人 |
AHLSTROM AUTOMATION GMBH & CO. KG |
发明人 |
MERCER, PETER GEORGE |
分类号 |
G01N21/35;G01N21/3559;G01N21/3563;G01N23/16;G01N33/34 |
主分类号 |
G01N21/35 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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