This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics
This is mostly a historical oddity. The one company producing instruments for these measurements dissolved a while ago, and the technique remains obscure. Perhaps this topic can be integrated into other surface-based physical technique articles? — Preceding unsigned comment added by 80.4.201.52 (talk) 10:26, 13 April 2022 (UTC)[reply]