NOISE-REDUCING LINE MICROPHONE FOR FREQUENCIES BELOW 1 CPS

[1] BAIRD HF, 1940, NZ J SCI TECHNOL B, V21, P314

[2] BENIOFF H, 1939, NATURE, V144, P178

[3] ACOUSTICAL ENERGY GENERATED BY THE OCEAN WAVES [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1952, 24 (01) : 83 - 83

[4] ON THE PROPAGATION OF SOUND WAVES IN A CYLINDRICAL CONDUIT [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1950, 22 (05) : 563 - 564

[5] DANIELS FB, 1956, Patent No. 2739659

[6] DANIELS FB, 1957, Patent No. 2789651

[7] OLSON HF, 1947, ELEMENTS ACOUSTICAL, P279

[8] OLSON HF, 1941, Patent No. 2228886

[9] SAXER L, 1954, ARCH METEOROL GEOP A, V6, P451

[1] BAIRD HF, 1940, NZ J SCI TECHNOL B, V21, P314

[2] BENIOFF H, 1939, NATURE, V144, P178

[3] ACOUSTICAL ENERGY GENERATED BY THE OCEAN WAVES [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1952, 24 (01) : 83 - 83

[4] ON THE PROPAGATION OF SOUND WAVES IN A CYLINDRICAL CONDUIT [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1950, 22 (05) : 563 - 564

[5] DANIELS FB, 1956, Patent No. 2739659

[6] DANIELS FB, 1957, Patent No. 2789651

[7] OLSON HF, 1947, ELEMENTS ACOUSTICAL, P279

[8] OLSON HF, 1941, Patent No. 2228886

[9] SAXER L, 1954, ARCH METEOROL GEOP A, V6, P451