Distinctive Merit

Environmental Correction Factors for Deadweight Testing
Maintaining deadweight testing accuracy in the field can be difficult because of movement and changes in temperature and humidity. This project is an electronic instrument used to calibrate portable deadweight testers to improve accuracy. The instrument automatically measures environmental correction factors (air temperature, air pressure, relative humidity, and local gravity) in order to calculate precision pressure measurements. An HD64F3664BP processor is programmed to use the environmental correction factors to compute the air buoyancy correction factor and local gravity correction factor. Plus, the system displays the air temperature and pressure on an LCD so the user can determine additional correction factors.

Clint Schirard
U.S.
schirard@gci.net

Abstract | Entry