Concept
Unspecified {MBT} mechanical bathythermograph
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1287/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | Unspec MBT | ||
| 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. | ||
| Date | 2018-10-05T10:40:3 | ||
| Identifier | SDN:L22::TOOL1287 | ||
| Note | accepted | ||
| Has Current Version | 1 | ||
| version | 1 | ||
| inScheme | http://vocab.nerc.ac.uk/scheme/SDNDEV/current/ | ||
| Broader | L19:SDNKG17 |
sensor_model | Mapping: 1696967 |
| L05 SeaDataNet device categories - (2) | |||
| Related | B75:UNSPEC |
Unspecified | Mapping: 1537644 |
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