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2d calibration, Table 5-2: 12 point full-range calibration pattern, In table – PNI SeaTRAX User Manual

Page 20: 2 2d calibration

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PNI Sensor Corporation

DOC#1018154 r02

SeaTRAX User Manual

Page 15

Table 5-2: 12 Point Full-Range Calibration Pattern

Sample #

Yaw

1

Pitch

Roll

First Circle

1

±5°

30° to 40°

2

90°

±5°

-30° to -40°

3

180°

±5°

30° to 40°

4

270°

±5°

-30° to -40°

Second Circle

5

30°

> +45°

30° to 40°

6

120°

> +45°

-30° to -40°

7

210°

> +45°

30° to 40°

8

300°

> +45°

-30° to -40°

Third Circle

9

60°

< -45°

30° to 40°

10

150°

< -45°

-30° to -40°

11

240°

< -45°

30° to 40°

12

330°

< -45°

-30° to -40°

Footnote:

1. Yaw listings are not absolute heading directions but rather relative heading

referenced to the first sample.

5.1.2

2D Calibration

A 2D Calibration is intended for very low tilt operation (<5

°) where calibrating the

SeaTRAX with greater tilt is not practical.

This procedure calibrates for hard and soft iron effects in only two dimensions, and in

general is effective for operation and calibration in the tilt range of -5

° to +5°. The

recommended 12 point calibration pattern is a circle of evenly spaced points, as given in

Table 5-3.