I am currently producing membranes with a rough thickness of 15-40 µm and want to measure and compare them reliably. My desired accuracy is < 1 µm (e.g., 0.3 µm) or something in that region. I am looking for a tool/method/device that is not overly expensive, like SEM, but still gets the job done.
What is Your suggestion?
Timo Maron
What do you mean with membrane grow? They should not expand much, but some may have a gel-like behavior.
But how does it measure the thickness if the membrane is not complete plain, thus a reference point will not help?
So far i used microscopy to measure the thickness. However, the reproducibility is not reliable. Using a micrometer might not have sufficient accuracy.
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