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Title: Horizontal film balance having wide range and high sensitivity

Abstract

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. 5 figs.

Inventors:
; ;
Issue Date:
OSTI Identifier:
7001492
Patent Number(s):
4413506 A
Application Number:
PPN: US 6-240647
Assignee:
PTO; EDB-94-125585
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 5 Mar 1981
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; TENSIOMETERS; DESIGN; THIN FILMS; SURFACE TENSION; ELECTROMAGNETS; MEASURING METHODS; ELECTRICAL EQUIPMENT; EQUIPMENT; FILMS; MAGNETS; MEASURING INSTRUMENTS; SURFACE PROPERTIES; 440800* - Miscellaneous Instrumentation- (1990-)

Citation Formats

Abraham, B.M., Miyano, K., and Ketterson, J.B. Horizontal film balance having wide range and high sensitivity. United States: N. p., 1983. Web.
Abraham, B.M., Miyano, K., & Ketterson, J.B. Horizontal film balance having wide range and high sensitivity. United States.
Abraham, B.M., Miyano, K., and Ketterson, J.B. Tue . "Horizontal film balance having wide range and high sensitivity". United States.
@article{osti_7001492,
title = {Horizontal film balance having wide range and high sensitivity},
author = {Abraham, B.M. and Miyano, K. and Ketterson, J.B.},
abstractNote = {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. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {11}
}