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    • 7. 发明授权
    • Method of processing a signal from a thermal type flow sensor
    • 处理来自热式流量传感器的信号的方法
    • US5301126A
    • 1994-04-05
    • US849812
    • 1992-03-11
    • Yukinobu NishimuraNobutake TaniguchiSetsuhiro ShimomuraKouji Tanimoto
    • Yukinobu NishimuraNobutake TaniguchiSetsuhiro ShimomuraKouji Tanimoto
    • F02D41/18G01F1/696G06F15/20F02D41/30G01N11/04
    • F02D41/187G01F1/6965
    • A method of processing signal for a thermal type flow sensor having a temperature dependence resistance employing platinum and the like and a holding member made of alumina for holding it so as to compensate for response delay when fluid flow is changed, in which, when the fluid flow is maintained in a stationary state, the so-called equilibrium state, by steps of setting in advance the relation between a flow related value which changes according to flow change and a first operational value showing the temperature characteristic of the holding member which changes according to flow so as to make the flow related value as a parameter, calculating the first operational value from the flow related value when flow is detected in accordance with the predetermined relation, comparing the calculated first operational value with the second operational value which is set in relation with the first operational value, correcting the second operational value so that it approximates the first operational value according to the compared result, calculating a compensating factor by a predetermined operational formula with the calculated first operational value and the corrected second operational value, and compensating the compensating factor by multiplying it by the detected flow.
    • 一种处理具有使用铂等的温度依赖性电阻的热式流量传感器的信号的方法以及由氧化铝制成的保持部件,用于保持其流体流动改变时的响应延迟,其中当流体 通过预先设定根据流量变化而变化的流量相关值与显示保持部件的温度特性的第一操作值之间的关系的步骤,将流量维持在静止状态(即所谓的平衡状态) 流动以使流量相关值作为参数,根据预定关系检测流量时根据流量相关值计算第一操作值,将计算的第一操作值与设置在第二操作值中的第二操作值进行比较 与第一操作值的关系,校正第二操作值使其近似于第一操作 根据比较结果计算补偿因子,并通过计算的第一操作值和校正的第二操作值计算补偿因子,并通过将其与检测到的流相乘来补偿补偿因子。