Identification appts. for unknown gaseous substances
摘要
A semiconductor sensor element is connected in series with a resistor to form a potential divider (1). The combination is heated in an electrical oven (3) supplied from a current source (2). Separate sensors monitor the semiconductor surface temperature (13) and the relative humidity (14). This information and the conduction data from the analytical sensor are fed to a microcomputer through an analogue to digital converter. The information is used in a comparison mode with the stored data on known gaseous reactions to establish both qualitative and quantitative data on the unknown substance admitted to the oven interior.
申请公布号
DE3917519(A1)
申请公布日期
1990.12.06
申请号
DE19893917519
申请日期
1989.05.30
申请人
E.T.R. ELEKTRONIK UND TECHNOLOGIE RUMP GMBH, 4600 DORTMUND, DE
发明人
RUMP, HANNS, 4750 UNNA-MASSEN, DE;BARGMANN, WOLF-DIETER, 4330 MUEHLHEIM, DE