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Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 38 (1931) > Annual Issue

 

Document Type

Research

Abstract

A new concave ultrasonic diffraction grating has been constructed and used in the measurement of wave-lengths between one and three millimeters. An oscillating quartz crystal is used as generator and receiver of the sound waves. Results are compared with those obtained by the Pierce interferometer and found to agree.

Publication Date

1931

Journal Title

Proceedings of the Iowa Academy of Science

Volume

38

Issue

1

First Page

215

Last Page

215

Copyright

©1931 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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