Along-beam bin center separation: Difference between revisions

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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:
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 = \Delta Z</math>
<math>r_0 = z</math>


where <math>\Delta Z</math> is the separation between the bins along the Z-axis
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:
For diverging beams, the along beam bin center separation (<math>r_0</math>) is given by:


<math>r_0 = \frac{\Delta Z}{\cos\theta}</math>
<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.
where <math>\theta</math> is the angle of the diverging beams with the <math>Z</math>-axis.

Revision as of 02:02, 11 November 2021

[PLACEHOLDER -- NEED TO CONFIRM THIS IS CORRECT AND/OR ADD PICTURE]

For ADCPs, the Z-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 Z-coordinate. For a vertical beam, the along beam bin center separation (r0) is given by:

r0=z

where z is the distance from the transducer along the Z-axis.

For diverging beams, the along beam bin center separation (r0) is given by:

r0=Zcosθ

where θ is the angle of the diverging beams with the Z-axis.