发明名称 |
PROCESS AND DEVICE FOR RECOGNIZING ORGANIC SUBSTANCES |
摘要 |
<p>In a process for recognizing organic substances in solids by measuring the spectram of the radiation which is reflected or transmitted, radiation with a wavelength between 2-4 mum is used and, for radiation of solids, unmodulated radiation is used. The radiation source should have an output of at least 50 W and the distance between the illumination optics from the solid being investigated should be at least 10 cm. Recognition is based on absorption bands of the extended oscillations of C-H bonds and sometimes the presence of absorption bands of N-H bonds. Broad band radiation is preferable for radiation of the solids, and the reflected or transmitted radiation is directed through a narrow band filter with adjustable transmission frequency. This can be advantageously formed with an acousto-optical filter.</p> |
申请公布号 |
EP0873508(A2) |
申请公布日期 |
1998.10.28 |
申请号 |
EP19970914055 |
申请日期 |
1997.01.10 |
申请人 |
INSTITUT FUR CHEMO- UND BIOSENSORIK MUENSTER E.V. |
发明人 |
KOWOL, FRANK;FELDHOFF, ROGER;HUTH-FEHRE, THOMAS;KANTIMM, THOMAS |
分类号 |
G01N21/3563;G01N33/44;(IPC1-7):G01N21/35 |
主分类号 |
G01N21/3563 |
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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