作者: Martin Greenspan , Carroll E. Tschiegg
DOI: 10.1063/1.1715758
关键词:
摘要: A ``sing‐around'' velocimeter of high stability and precision has been developed tested. The instrument, which is the fixed‐path type, automatically measures and/or records speed sound in non‐dispersive liquids. Stabilities about 50 ppm over a 24‐hr period can be achieved.