1.
Arq Bras Cardiol
; 71(5): 719-24, 1998 Nov.
Article
in Portuguese
| MEDLINE
| ID: mdl-10347958
2.
Appl Opt
; 33(25): 6073-7, 1994 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-20936023
ABSTRACT
We have employed a Sagnac interferometer to measure small optical phase shifts induced by the Fresnel drag effect on moving media. The system detects volumetric flow rates of water as slow as 43 µL/min while maintaining a small pressure drop across the measuring pipe. Velocity profiles and turbulence measurements of flowing water are also demonstrated and discussed.