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Rockland Scientific International Inc.
520 Dupplin Road
Victoria, BC V8Z 1C1
Canada

Ph: +1 (250) 370-1688
Fax: +1 (250) 370-0234

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How to Zero the Pressure Sensor

Many oceanographic instruments including those designed by Rockland Scientific, contain pressure sensors. Within Rockland instruments, changes in pressure are sensed as changes in voltage which is converted to units of decibsr (dBar) in post processing. The dBar unit is extremely convenient because it is nearly synonymous with water depth in meters (m). At sea level, […]

VMP Pressure Sensor Accuracy

The profiling velocity, W, of a VMP instrument is derived using the signal dP/dt from the integrated pressure sensor.  It is imperative to have an accurate and high-resolution sensor to derive the rate of change of pressure, because it is used to convert the shear-probe data into physical units, and to convert the time rate […]