INJECTION MEASURING DEVICE AND INJECTION MEASURING METHOD
PROBLEM TO BE SOLVED: To enable an appropriate measurement to be carried out without requiring any troublesome works.SOLUTION: A measurement control device 8 of this invention injects liquid from an injection nozzle 2 into a closed vessel 1, calculates a frequency fof a pressure oscillation and a ri...
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Main Authors | , , , , |
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Format | Patent |
Language | English Japanese |
Published |
04.04.2016
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To enable an appropriate measurement to be carried out without requiring any troublesome works.SOLUTION: A measurement control device 8 of this invention injects liquid from an injection nozzle 2 into a closed vessel 1, calculates a frequency fof a pressure oscillation and a rise amount ΔPof pressure, measures a mass Nof discharged liquid in order to return a pressure in the closed vessel 1 to a prescribed back-pressure with a mass flow meter 7 and sets a coefficient M in view of an equation of M=N×f/ΔP. The measurement control device 8 calculates an injection-quantity Iq in reference to an equation of Iq=M×(ΔP/f) under application of a frequency (f) of pressure oscillation calculated in respect to injection of liquid in subsequent measurement of liquid injection amount, a rise amount of pressure ΔP and a coefficient M.SELECTED DRAWING: Figure 1
【課題】煩雑な作業を必要とすることなく適正な計測を行えるようにする。【解決手段】測定制御装置8は、インジェクションノズル2から液体を密閉容器1内に噴射し、圧力振動の周波数fdと圧力の上昇量ΔPdとを算定し、密閉容器1内の圧力を所定の背圧に復帰するために排出した液体の質量Ndを質量流量計7で測定し、係数Mを、M = Nd?fd2/ΔPd、により設定する。測定制御装置8は、以降の液体の噴射量の計測において、液体の噴射に対して算定された圧力振動の周波数fと圧力の上昇量ΔPと、係数Mとを用いて、Iq = M?(ΔP/f2)として噴射量Iqを求める。【選択図】図1 |
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Bibliography: | Application Number: JP20140171986 |