Ed Morrell, Director of Bios DryCal Engineering, has recently written a paper on the advancements made in high-speed piston prover designs over the past 20 years, including horizontal piston prover design. The horizontal design (while more complex than previous vertical tube designs) allows for faster measurement speed with reduced dynamic pressure changes that can introduce measurement uncertainty.
In this article, you’ll learn:
-a brief history of gas flow rate measurement with a chronology of piston prover design
-the dynamics of clearance seal pistons
-the advantages of horizontal provers
-how the latest technology makes reading of corrosive gases more accurate and hassle free
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