TY - JOUR
T1 - Acoustic monopoles, dipoles, and quadrupoles
T2 - An experiment revisited
AU - Russell, Daniel A.
AU - Titlow, Joseph P.
AU - Bemmen, Ya Juan
PY - 1999/8
Y1 - 1999/8
N2 - A simple and inexpensive demonstration of acoustic monopole, dipole, and quadrupole sources utilizes four 4-in. boxed loudspeakers and a homemade switch box. The switch box allows the speakers to be driven in any combination of phase relationships. Placing the speakers on a rotating stool allows students to measure directivity patterns for monopole, dipole, and quadrupole speaker combinations. Stacking the speakers in a square, all facing the same direction, allows students to aurally compare the frequency and amplitude dependence of sound radiation from monopoles, dipoles, and quadrupoles.
AB - A simple and inexpensive demonstration of acoustic monopole, dipole, and quadrupole sources utilizes four 4-in. boxed loudspeakers and a homemade switch box. The switch box allows the speakers to be driven in any combination of phase relationships. Placing the speakers on a rotating stool allows students to measure directivity patterns for monopole, dipole, and quadrupole speaker combinations. Stacking the speakers in a square, all facing the same direction, allows students to aurally compare the frequency and amplitude dependence of sound radiation from monopoles, dipoles, and quadrupoles.
UR - http://www.scopus.com/inward/record.url?scp=0033430557&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033430557&partnerID=8YFLogxK
U2 - 10.1119/1.19349
DO - 10.1119/1.19349
M3 - Article
AN - SCOPUS:0033430557
SN - 0002-9505
VL - 67
SP - 660
EP - 664
JO - American Journal of Physics
JF - American Journal of Physics
IS - 8
ER -