| 摘要 |
The present invention relates to interface level measurements in a tank or container comprising different material layers and especially to flotation processes which are especially applied in mineral industry. The method according to the invention comprises analyzing material in a container (10) comprising slurry (11a) and/or froth (11b) and/or gas and/or a transitional area between the froth (11b) and the slurry (11a), using at least one probe (12) comprising a plurality of electrodes (12') capable of being in contact with the material (11a, 11b), injecting and measuring currents or voltages through at least two electrodes (12'), and determining the conductivity distribution for the material (11a, 11b) using model based calculations, which comprise reconstruction of a vertical conductivity profile among the material (11a, 11b). |
