Concept
Unspecified {MBT} mechanical bathythermograph
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1287/ |
|---|---|
| Within Vocab | SeaVoX Device Catalogue |
| Preferred Label | Unspecified {MBT} mechanical bathythermograph |
| Definition | A term to describe a generic mechanical bathythermograph (MBT). A small torpedo-shaped device that records water temperature in relation to depth. MBTs traditionally use a liquid-in-metal thermometer (toluene and copper tube) to measure temperature and Bourdon tube sensor to measure pressure. Temperature readings are recorded by a mechanical stylus, which scratches a thin line on a coated glass slide. Depth is then calculated as a function of pressure. MBTs are lowered into the water by a winch and dropped free-falling to a specified depth before being retrieved. It is capable of measuring temperature to depths of 300 m. |
| Broader |
L05:
bathythermographs L05: Mechanical bathythermographs |
| Related |
B75:
Unspecified |
| Note | accepted |
| Deprecated | false |
| Alternative Label | Unspec MBT |
| Version | 1 |
| Has Current Version | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1287/1/ |
| Authored On | 2018-10-05 10:40:3 |
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