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Title: Calibration And Verification Of Mems Mass Flow Meters For Custody Transfer
Author: Wenhong Deng, Sugang Jiang, Rui Liu And Liji Huang Pujun Zhao And Li Lei Kaiyou Jin
Source: Flomeko 2010
Year Published: 2010
Abstract: Thermal mass flow meters are commonly of full scale accuracy and not considered for applications where custody transfer is required. Recent advancement of MEMS mass flow technology in city natural gas metering has demanded a better calibration and verification procedure so that the custody transfer can be justified with regard to the traditional thermal mass flow meter technology. The thermal mass flow sensor could be impacted by the humidity, gas composition and temperature. Calibrations with one standard may often be not applicable to the others if each of the factors is not fully accounted even the meter itself has been well designed and immune to the variables. In this paper, we will discuss the calibration procedures and measurement uncertainties of the MEMS mass flow meters.

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