Barometer


Posted on Oct 23, 2012

The Bray Barometer requires manual calibration for voltage offset and gain. Although practical on the workbench, these devices are most likely mounted in inconvenient locations making secondary adjustment difficult. The Bray Barometer uses potentiometers for offset and gain adjustments. Potentiometers are notoriously temperature sensitive, and sensitive to hostile environments.


Barometer
Click here to download the full size of the above Circuit.

* By only using a single 5V power supply, the Bray barometer cannot utilize the full 1.5-10V range of the DS2438`s Analog to Digital Converter. (ADC), by using a higher voltage input we can improve instrument range or sensitivity. * The Printed




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