Horizontal film balance having wide range and high sensitivity
Patent
·
OSTI ID:6725810
A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.
- DOE Contract Number:
- W-31-109-ENG-38
- Assignee:
- Dept. of Energy
- Application Number:
- ON: DE83002349
- OSTI ID:
- 6725810
- Country of Publication:
- United States
- Language:
- English
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Horizontal film balance having wide range and high sensitivity
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