Zobrazeno 1 - 10
of 49
pro vyhledávání: '"E. F. Carome"'
Publikováno v:
Radioengineering, Vol 11, Iss 3, Pp 27-32 (2002)
Using fiber optics and micro optics technologies we designed aninnovative fiber optic index of refraction transducer that has uniqueproperties. On the base of this transducer a laboratory equipment typefiber optic refractometer was developed for liqu
Externí odkaz:
https://doaj.org/article/133ccd1af62b45c2905c7a1d53f71990
Autor:
E F Carome, K P Koo
Publikováno v:
Optics letters. 5(8)
An experimental study has been made of an optical-waveguide coupler-type acoustic sensor employing multimode fibers. With LED sources the sensor behaves as an optical-intensity-modulation sensor with sensitivities in the 70–80-dB range re 1 μPa. H
Publikováno v:
The Journal of the Acoustical Society of America. 29:1081-1085
Observations have been made of the absorption of ultrasound in castor oil at 3 Mc over the temperature range from 10° to 45°C. An improved interferometer system which utilizes a liquid‐to‐air reflecting interface was employed, together with a s
Publikováno v:
The Journal of the Acoustical Society of America. 33:1417-1425
An experimental study has been made of the propagation of ultrasound in liquids under both free‐field and guided‐wave conditions. Free‐field measurements have been made from 1 to 20 Mc in low absorbing liquids, employing both circular and squar
Publikováno v:
The Journal of the Acoustical Society of America. 40:1462-1466
An experimental study has been made of the acoustic signals induced in liquids by the focused beam from a Q‐spoiled ruby laser. Very intense acoustic impulses have been produced with laser pulses of less than 0.05 J total energy. These appear to be
Publikováno v:
American Journal of Physics. 25:556-564
The use of the acoustic interferometer to investigate the absorption of ultrasound in liquids is discussed. Following elementary treatments of the propagation of acoustic waves in liquids and the properties of the piezoelectric sound source, a simple
Publikováno v:
The Journal of the Acoustical Society of America. 36:946-952
A technique is described for investigating the propagation of acoustic transients in liquids. Thick piezoelectric plates are employed as acoustic sources and detectors. The results of recent theoretical works on the transient response of such element
Publikováno v:
The Journal of Chemical Physics. 49:1013-1017
A detailed examination of laser light‐scattering data in CCl4 at 25°C was undertaken to determine which of reported relaxation times, determined from velocity‐dispersion data in the gigahertz region, is consistent with both ultrasonic and hypers
Autor:
J. B. Lastovka, E. F. Carome
Publikováno v:
The Journal of the Acoustical Society of America. 35:1279-1284
An experimental study has been made of the velocity of ultrasonic pulses in cylindrical, water‐filled, metallic waveguides. Both a pulse coincidence and a direct source‐to‐receiver signal travel‐time method were used for measurements over the
Publikováno v:
The Journal of the Acoustical Society of America. 36:2368-2373
A study has been made of the propagation of pressure impulses approximately 0.1 μsec wide in liquids exhibiting viscous absorption, i.e., constant α/ω2, and relaxation effects. Computed variations of impulse shape as a function of path length are