专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明公开

EP1264174A1 ELEKTRONISCHE EINRICHTUNG ZUR LEITWERTERFASSUNG 有权
公开(公告)号：EP1264174A1
公开(公告)日：2002-12-11
申请号：EP01913760.3
申请日：2001-01-23
申请人： Forschungszentrum Karlsruhe GmbH
发明人： BLANK, Thomas , DEIMLING, Berthold , FROMHEIN, Olaf , WIEDEWILT, Wolfgang
IPC分类号： G01N33/00 , G01N27/12
CPC分类号： G01N33/0031 , G01N27/122
摘要： The invention relates to gas components of an atmosphere. Said components are detected by means of sensors which change the conductance thereof in a gas-specific manner. The aim of the invention is to quickly detect the gas composition of an atmosphere. An integral multiple of four components of sensors and reference resistors is electrically connected to form a ring. Pairs of said components can be supplied with current by means of an even number of changeover switches which can contact pairs of components by means of the output thereof, whereby pairs are contacted one after the other. The mutual points of the pairs of components are connected to the even number of channels one after the other for transforming current/voltage, in such a way that the supply of a neutral current to the components is always measured. When the number of changeover switches multiplied by the number of channels equals the number of components used, the circuit which is characterised by logic switching is very simple.
摘要翻译：本发明涉及气氛的气体组分。所述部件借助于以气体特定方式改变其传导性的传感器来检测。本发明的目的是快速检测气氛的气体组成。传感器和参考电阻器的四个组成部分的整数倍被电连接以形成环。借助于偶数个转换开关可以为所述部件对提供电流，所述转换开关可以通过其输出接触成对的部件，由此成对部件被一个接一个地接触。成对的部件的共同点依次连接到偶数个通道以转换电流/电压，以这种方式总是测量中性电流到部件的供应。当转换开关的数量乘以通道数量等于所使用的组件数量时，以逻辑切换为特征的电路非常简单。

IPRDB

热门服务

关于我们

友情链接

联系方式