Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Moody C. Thompson"'
Autor:
Moody C. Thompson, Martin Greenspan
Publikováno v:
The Journal of the Acoustical Society of America. 25:92-96
An automatic recording double crystal interferometer is described which measures the speed and attenuation of sound at about 11 Mc/sec in gases at pressures of a fraction of a mm Hg.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c80df54e51fc0520e3db5d5a20317597
https://doi.org/10.1121/1.1907016
https://doi.org/10.1121/1.1907016
Autor:
Moody C. Thompson, Richard V. Waterhouse, Seymour Edelman, Raymond D. Berendt, Richard K. Cook
Publikováno v:
The Journal of the Acoustical Society of America. 27:1072-1077
Reverberation chambers used for acoustical measurements should have completely random sound fields. We denote by R the cross‐correlation coefficient for the sound pressures at two points a distance r apart. R = 〈p1p2〉Av/(〈p12〉Av〈p22〉Av)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4dccbc78a0e8142e2f8e1afa545ed19
https://doi.org/10.1121/1.1908122
https://doi.org/10.1121/1.1908122
Autor:
Jr Moody C Thompson
Publikováno v:
Review of Scientific Instruments. 26:617-618
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9e9f52a8490f72ea996f7776dc80edd
https://doi.org/10.1063/1.1715266
https://doi.org/10.1063/1.1715266
Publikováno v:
The Journal of the Acoustical Society of America. 25:192-192
Measurements have been made of the attenuation and phase shift of sound propagated through gases at very low pressures. The 11 Mc/sec double‐crystal interferometer described earlier was used. The range of pressures studied extends from about 1.5 mm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14c8e0a2115bed8d39c33ee0dc53450f
https://doi.org/10.1121/1.1917625
https://doi.org/10.1121/1.1917625
Publikováno v:
The Journal of the Acoustical Society of America. 25:186-186
At relatively low frequencies optical calibration of vibration pick‐ups has been used extensively in the past. Direct measurement of displacement by means of a microscope simultaneously with measurement of open circuit voltage from the acceleromete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a036249b6daedda682d0b96ad6700f11
https://doi.org/10.1121/1.1917590
https://doi.org/10.1121/1.1917590
Autor:
Martin Greenspan, Moody C. Thompson
Publikováno v:
Review of Scientific Instruments. 22:799-799
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::444f6f4cd77bb984fdbcf724d3b6f1cf
https://doi.org/10.1063/1.1745763
https://doi.org/10.1063/1.1745763
Autor:
Moody C. Thompson, Martin Greenspan
Publikováno v:
The Journal of the Acoustical Society of America. 23:627-627
An 11‐Mc/sec “double‐crystal” interferometer for use with gases at low pressures is under construction at the National Bureau of Standards. Previous experience indicates that the principal difficulties associated with such an instrument arise
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a46a2928baf3dd36bf0cd69d8bb5951
https://doi.org/10.1121/1.1917358
https://doi.org/10.1121/1.1917358