Or should I also use an end correction for my slit?
2.
If so, what is the end correction for a slit?
3.
End correction must be used with this method, to achieve accuracy.
4.
End corrections for radiation from the openings is needed to bring the two frequencies in consonance.
5.
A theoretical basis for computation of the end correction is the radiation acoustic impedance of a circular piston.
6.
:: I have the formula for a slit but it requires the depth of the slit but doesnt seem to need any end correction.
7.
Boelkes and Hoffmann have made measurements of end correction for open-open tubes and derived the relation " ? " = 0.33 " D ".
8.
To determine the end corrections, two additional dimensions are needed : the diameter of the orifice " d " 1 and the diameter of the tube " d " 2.
9.
It is however well recognized that the practical frequency comes out lower than this, you have to apply an end correction, the pipe appears to be acoustically somewhat longer than its physical length.
10.
There is no scientifically proven and accepted value for the end correction of a resonant tube, various values ranging from 0.3r to 0.6r have been suggested from numerous disparate experiments.
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