BLPB ozonesonde flowrate test (Toulouse, Oct 2012)

BLPB ozonesondes are designed to work for a few minutes between longer periods of quiescence. We investigated by a laboratory experiment whether after some period of quiescence, the pump flow rate of an En-Sci Z ECC sonde varies in the first minutes after restart.<br />
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Observing strategy: <br />
Measurements were made with a soap-film flowmeter, but in a timed way with respect to the instant of motor start. Other motor variables (see below) were recorded in the same time.<br />
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Column details:<br />
U: pump motor voltage<br />
I: pump motor current<br />
P: pump motor power<br />
Pressure: ambiant pressure<br />
PumpTemp: pump body temperature<br />
RS: rotation speed<br />
PumpTime: pump time for 100 ml<br />
Flowrate: pump flowrate<br />
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Column units/format: Date (dd/mm/yyyy); Time UTC (hh:mm:ss); V; mA; mW; hPa; degC; rpm; s; l/min