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Vol. 158, Issue 11, November 2013, pp. 249-254




Development of Noise Measurements. Part 7. Coriolis Mass Flowmeter and its Errors
Pylyp SKOROPAD, Bohdan STADNYK, Svyatoslav YATSYSHYN, Halyna POL'OVA

Institute of Computer Technologies, Automation and Metrology, National University Lviv Polytechnic, Bandera str.12, Lviv, 79013, Ukraine
Tel.: +38-0322-37-50-89
E-mail: slav.yat@gmail.com


Received: 9 September 2013   /Accepted: 25 October 2013   /Published: 30 November 2013

Digital Sensors and Sensor Sysstems


Abstract: Coriolis mass flowmeter instrumental and dynamic errors are studied. They can be decreased by the thermocouple usage of R or S types instead of Pt100 sensors. The dynamic error analysis shows that it is able to improve the operation accuracy in the dynamic regime and eliminate the initial period of the flowmeter exploitation in the error compensation absence regime. In consequence of the instrumental error consideration the expediency of the differential thermocouples installation with the reduced performance dispersion, lowered by taking into account of local and extensive inhomogeneities as result of technological deviations of wire production.


Keywords: Coriolis mass flowmeter, Instrumental error, Dynamic error, Differential thermocouple, Pt100 sensor.


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