Concept
British Antarctic Survey Shipboard Three Component Magnetometer
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1251/ |
|---|---|
| Within Vocab | SeaVoX Device Catalogue |
| Preferred Label | British Antarctic Survey Shipboard Three Component Magnetometer |
| Definition | A British Antarctic Survey-built shipboard three-component magnetometer. The design of this instrument was based on the STCM described by Korenaga et al., 1995; however, BAS's version is simplified, it does not use a gyrocompass, and records heave, roll and pitch information using an Ashtech 3D GPS and TSS300 HRP attitude sensor. One of the principles of the STCM is to simultaneously measure the ship's attitude and the magnetic vector field, in order to remove the effect of the ship's motion. In order to obtain unbiased ambient geomagnetic field measurements, the ship's own magnetisation needs to be known. This is obtained by carrying out 'figure eight' manoeuvres at constant speed, during which unbiased ship's rolling data can be acquired. |
| Broader |
L05:
magnetometers L05: platform attitude sensors L05: NAVSTAR Global Positioning System receivers |
| Related |
B75:
British Antarctic Survey |
| Note | accepted |
| Deprecated | false |
| Alternative Label | BAS STCM |
| Version | 1 |
| Has Current Version | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1251/1/ |
| Authored On | 2018-08-02 15:26:57 |
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