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Coriolis flow meter (optional), METHOD FOR DETERMINING THE RATIO gain two branches of signal processing of a Coriolis flowmeter AND METHOD FOR DETERMINING FLOW
Coriolis flow meter (optional), METHOD FOR DETERMINING THE RATIO gain two branches of signal processing of a Coriolis flowmeter AND METHOD FOR DETERMINING FLOW
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机译:科里奥利流量计(可选),科里奥利流量计信号处理的两个分支的比率增益确定方法和流量确定方法
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摘要
FIELD: physics, measurements.;SUBSTANCE: coriolis flow metre comprises at least one metering tube (3), in which oscillations are excited in metering mode and through which water is flowing, flow rate of which must be measured, the first (21) and second (23) detectors for registration of metering tube (3) oscillation dependent on flow rate and for generation of the first (S1) and second (S2) signals of detectors and two separate branches (37, 39) of signals processing. During measurement of flow rate, reference signal (R) is applied onto the first (S1) or second (S2) signal of detector. Auxiliary signal (H) produced by application passes through both branches (37, 39) of signals processing. From the first signal (SΔ) at the outlet of the first branch (37) of signals processing, the first prepared reference signal (R1) is filtered, and from the second signal (SΣ) at the outlet of the second branch (39) of signals processing, the second prepared reference signal (R2) is filtered, and based on prepared reference signals (R1, R2) ratio (V) is detected between amplifications of signal processing branches (37, 39).;EFFECT: provision of high accuracy of measurement.;12 cl, 6 dwg
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