Berekening dimensionering Singing Fence project
Diapason :  442 Hz
Materiaal: aluminium buis 30/20mm
Materiaal konstante: 1625000 

note = midi note number
f = frequency of the fundamental
l_cal = calculated length of the tube
l_eff = empiric exact length of the tube
error = difference between l_cal and l_eff
N= 36  f = 65               l_cal= 1581.139  node at: 354.4913 mm  nd= 872 

N= 37  f = 69               l_cal= 1534.624  node at: 344.0628 mm  nd= 846 

N= 38  f = 73               l_cal= 1491.988  node at: 334.5037 mm  nd= 822 

N= 39  f = 78               l_cal= 1443.376  node at: 323.6048 mm  nd= 796 

N= 40  f = 82               l_cal= 1407.731  node at: 315.6133 mm  nd= 776 

N= 41  f = 87               l_cal= 1366.681  node at: 306.4098 mm  nd= 753 

N= 42  f = 92               l_cal= 1329.024  node at: 297.9672 mm  nd= 733 

N= 43  f = 98               l_cal= 1287.697  node at: 288.7016 mm  nd= 710 

N= 44  f = 104              l_cal= 1250  node at: 280.25 mm  nd= 689 

N= 45  f = 110              l_cal= 1215.431  node at: 272.4996 mm  nd= 670 

N= 46  f = 117              l_cal= 1178.511  node at: 264.2222 mm  nd= 650 

N= 47  f = 124              l_cal= 1144.764  node at: 256.656 mm  nd= 631 

N= 48  f = 131              l_cal= 1113.758  node at: 249.7047 mm  nd= 614