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Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 68 (1961) > Annual Issue

 

Document Type

Research

Abstract

There exists a serious need for a continuous liquid level sensing device for use in cryogenic liquids. An optical probe that will emit an amount of light directly proportional to the height of liquid in a Dewar is described. The optical output signal of the probe will be changed to an electrical signal by means of a photocell or a phototransistor.

Publication Date

1961

Journal Title

Proceedings of the Iowa Academy of Science

Volume

68

Issue

1

First Page

502

Last Page

503

Copyright

©1961 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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