| 摘要 |
PROBLEM TO BE SOLVED: To derive an operative technique for a mass flowmeter measuring pressure of a measuring tube without any additional devices by means of a sophisticated method. SOLUTION: In the control technique of mass flowmeter that is based on the Coriolis principle, includes a measuring tube through which medium flows, and, since the aforementioned measuring tube is excited by vibration, measures the resulting oscillatory reaction of the aforementioned measuring tube, a process measuring pressure of the medium flowing through the aforementioned measuring tube by evaluating the afore-recorded oscillatory reaction is contained, based on a physico-mathematical model for dynamics of the aforementioned mass flowmeter. Hereby, the Coriolis mass flowmeter in the present invention can measure pressure of the measuring tube in addition to measurement of the mass flow rate without any additional devices. COPYRIGHT: (C)2006,JPO&NCIPI
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