Along-beam bin center separation
From Atomix
[PLACEHOLDER -- NEED TO CONFIRM THIS IS CORRECT AND/OR ADD PICTURE]
For ADCPs, the <math>Z</math>-axis in instrument coordinates is commonly defined along the axis of the ADCP pressure case. The velocity data are commonly given in terms of this <math>Z</math>-coordinate. For a vertical beam, the along beam bin center separation (<math>r_0</math>) is given by:
<math>r_0 = z</math>
where <math>z</math> is the distance from the transducer along the <math>Z</math>-axis.
For diverging beams, the along beam bin center separation (<math>r_0</math>) is given by:
<math>r_0 = \frac{z}{\cos\theta}</math>
where <math>\theta</math> is the angle of the diverging beams with the <math>Z</math>-axis.
