Linked Life Data

18163738

Source:http://linkedlifedata.com/resource/pubmed/id/18163738

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2007-12-31
pubmed:abstractText
An instrument is described which carries three orthogonal geomagnetic field sensors on a standard meteorological balloon package, to sense rapid motion and position changes during ascent through the atmosphere. Because of the finite data bandwidth available over the UHF radio link, a burst sampling strategy is adopted. Bursts of 9 s of measurements at 3.6 Hz are interleaved with periods of slow data telemetry lasting 25 s. Calculation of the variability in each channel is used to determine position changes, a method robust to periods of poor radio signals. During three balloon ascents, variability was found repeatedly at similar altitudes, simultaneously in each of three orthogonal sensors carried. This variability is attributed to atmospheric motions. It is found that the vertical sensor is least prone to stray motions, and that the use of two horizontal sensors provides no additional information over a single horizontal sensor.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Dec
pubmed:issn
0034-6748
pubmed:author
pubmed:issnType
Print
pubmed:volume
78
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
124501
pubmed:year
2007
pubmed:articleTitle
A three-dimensional magnetometer for motion sensing of a balloon-carried atmospheric measurement package.
pubmed:affiliation
Department of Meteorology, University of Reading, P.O. Box 243, Earley Gate, Reading, Berkshire, RG6 6BB, United Kingdom. r.g.harrison@reading.ac.uk
pubmed:publicationType
Journal Article