Data recording interval: Difference between revisions
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{{MitoPedia | {{MitoPedia | ||
|abbr=F7 | |abbr=F7 | ||
|description=The '''data recording interval''' is the time interval at which data is sampled with an instrument. In [[DatLab]] the data recording interval is set in the [[O2k control]] window. The system default value is 2 s. A lower data recording interval is selected for kinetic experiments, and when the volume-specific oxygen flux is high (>300 pmol O<sub>2</sub>Β·s<sup>-1</sup>Β·ml<sup>-1</sup>). | |description=The '''data recording interval''' is the time interval at which data is sampled with an instrument. In [[DatLab]] the data recording interval is set in the [[O2k control]] window. The system default value is 2 s. A lower data recording interval is selected for kinetic experiments, and when the volume-specific oxygen flux is high (>300 pmol O<sub>2</sub>Β·s<sup>-1</sup>Β·ml<sup>-1</sup>).<br />Technically, the O2k instrument (hardware) measures the sensor signal every 10ms (which is NOT the βdata recording intervalβ). By the given data recording interval from DatLab (software) a discrete number of sensor signal points are taken to calculate an average value in the O2k (e.g. a data recording interval of 2 s can take 200 sensor signal points; a data recording interval of 0.5 s can take 50 sensor signal points). This average value is sent to DatLab and is recorded as a raw data point. However, there is a definedΒ threshold:Β the O2k does not apply more than 200 sensor signal points to calculate the average for the raw data point. For example a data recording interval of 3 s could take 300 sensor signal points but only the 200 most recent sensor signal points are used for averaging. | ||
|info=[[MiPNet19.18A O2k-start]] | |info=[[MiPNet19.18A O2k-start]] | ||
}} | }} |
Revision as of 10:55, 6 June 2017
Description
The data recording interval is the time interval at which data is sampled with an instrument. In DatLab the data recording interval is set in the O2k control window. The system default value is 2 s. A lower data recording interval is selected for kinetic experiments, and when the volume-specific oxygen flux is high (>300 pmol O2Β·s-1Β·ml-1).
Technically, the O2k instrument (hardware) measures the sensor signal every 10ms (which is NOT the βdata recording intervalβ). By the given data recording interval from DatLab (software) a discrete number of sensor signal points are taken to calculate an average value in the O2k (e.g. a data recording interval of 2 s can take 200 sensor signal points; a data recording interval of 0.5 s can take 50 sensor signal points). This average value is sent to DatLab and is recorded as a raw data point. However, there is a defined threshold: the O2k does not apply more than 200 sensor signal points to calculate the average for the raw data point. For example a data recording interval of 3 s could take 300 sensor signal points but only the 200 most recent sensor signal points are used for averaging.
Abbreviation: F7
Reference: MiPNet19.18A O2k-start
MitoPedia O2k and high-resolution respirometry:
DatLab