| 摘要 |
1. Electrochemical SO2 analyser for determining the SO2 content in gases, with a carbon electrode which indicates the limit currents of the gases being determined, and with a non-polarisable copper counter-electrode, in a container with dilute sulphuric copper sulphate solution as a throughflow electrolyte, characterised by a per se known two-arm construction of the container (1; 5), whose arms communicate both at the bottom of the container and also at the upper end through overflow means, and in one arm (1) of which measuring and counter-electrodes (2; 3) are arranged, whereas the other arm (5) accommodates the gas introduction pipe, so that by introduction of measurement gas into the electrolyte a circulation flow is brought about on the airlift pump principle, and by doubling of the container (1; 5) with one serving as a measuring cell (10) and the other as a reference cell (11), also an electrical circuit arrangement (12-16) for detecting the differences between the currents of the two cells as the measurement value. |
