| 摘要 |
<p>A method for on-line measuring non-chromic coating thickness on steel strip surface includes the following steps: selecting two water soluble compounds which contain element P, Ca, Ti, Ba or Sr and which are not reactive with the non-chromic coating liquid; adding the two compounds to the liquid to make a standard sample sheet after stirring evenly the liquid; using an off-line film thickness meter to excite the two compounds by ray to get characteristic spectrum; fitting correction function of the measured thickness and the thickness correction value after numerous experiments, wherein the thickness correction value is difference between the measured thickness which is gotten from the compound with weak characteristic spectrum and the actual thickness which is measured from the compound with strong characteristic spectrum; adding the compound with weak characteristic spectrum to the liquid to get the measured thickness, and to compute the actual thickness by the correction function.</p> |
