The need for a Dynamic Pressure Calibration Standard

Global need for dynamic pressure measurements is increasing rapidly. Dynamic pressure sensors are being used in all sorts of high value measurements from Gas Turbine stability control to liquid gas transport systems design and management. While there are several manufacturers of sensors which are capable of measuring dynamic pressure there is no standardization of calibration techniques. There is also little to no dynamic pressure sensor calibration expertise at the national metrology level, and thus no proficiency or international comparisons being carried out. There are also no international standards covering the topic. This paper will give an overview of the dynamic pressure calibration offerings by the various supplier organizations, including basic operating principles of each. It will furthermore cover current standardization efforts both within the ISA and ISO organizations. Lastly it will cover the intended format and outline of a newly formed TC108 working project intended to generate a dynamic pressure calibration standard.