May 2001

Special Report: Gas Processing Developments

Pulse radar for mm-precision in tank gauging

Systems with a carrier frequency about 6 GHz and an additional phase evaluation offer cost advantages

Heim, M., Endress + Hauser GmbH + Co.

What are the requirements of millimeter-precision in tank gauging under reference and application conditions? Here's an explanation of the decisive parameters of an overall concept (pulse radar, carrier frequency about 6 GHz, phase evaluation, antenna selection, etc.). Their advantages are illustrated. Tank gauging with mm-precision Application.Highly precise automated tank gauges (ATGs) are particularly used for storing liquid hydrocarbons in the petrochemical industry. The API standard demands an accuracy of at least 3 mm (1/8 in.) across the whole measuring range for operating installed systems that have custody transfer approval.1 Manufacturers of such tank gauging syst

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