发明名称 |
Indretning til måling af den elektriske ledningsevne i et flydende, fortrinsvis vandigt, medium |
摘要 |
Device for measuring electrical conductivity of a liquid medium comprising constant voltage means, connected to a first electrode arrangement for injecting an alternating signal into the liquid medium, detection means, connected to a second electrode arrangement coupled via the liquid medium, for generating a measurement signal influenced by the electrical conductivity with a clock frequency (CLK) of the alternating signal, and evaluation means which from a current-proportional injection signal of the current injected by the first electrode arrangement into the liquid medium and from the measurement signal generate a conductivity signal of the liquid medium. The constant voltage means are made in an individual circuit branch which has commutator means for the first electrode arrangement and ohmic resistance means in a series connection, the current-proportional injection signal being tapped as a voltage drop over the resistance means. |
申请公布号 |
DK2567223(T3) |
申请公布日期 |
2014.07.28 |
申请号 |
DK20120729156T |
申请日期 |
2012.06.26 |
申请人 |
OPTEK-DANULAT GMBH |
发明人 |
PLATTE, DANIEL;POHL, ALFRED |
分类号 |
G01N27/02;G01N27/04;G01N27/06;G01R27/22;H02M7/42 |
主分类号 |
G01N27/02 |
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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