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1. 发明专利

JPS5728215A Gas flow rate measuring device 失效
标题翻译：气体流量测量装置
公开(公告)号：JPS5728215A
公开(公告)日：1982-02-15
申请号：JP10460080
申请日：1980-07-29
申请人： Nippon Denso Co Ltd
发明人： MUTOO YUKIO , OOMORI NORIO , KAWASHIMA YUTAKA , HIROMASA SHIYUNICHIROU
IPC分类号： G01F1/68 , G01F1/69
CPC分类号： G01F1/68
摘要： PURPOSE:To control measurement of a flow rate by stretching three electric wires comprising a linear heating wire and a resistance wire located downstream near said heating wire in a pipe through which gas flows and another electric wire at a position located upperstream and not influenced by heat and by detecting changes of resistances of their resistance wires. CONSTITUTION:By using electrodes 16, 17, 18 in the upper part of a frame 11 made of ceramics and so on of a measuring device 10 inside a cylindrical flow measuring part, for instance, between an air cleaner 2 and a throttle valve 6 and grooves 116, 117, 118 in the under side of said frame, a resistance wire 14 made of platinum is stretched upperstream, a wire 13 downstream, and a heater 12 in the middle part. When current is supplied to a heater 12, temperature of the resistance 13 rises with the increased resistance value, and the resistance 14 indicates resistance values in correspondence with temperature of air. Each resistance and each heater are connected with the measuring part 15 and a flow is evaluated by using changes of values of heating power for the heater 12 and resistances 13, 14. Through the process, measurement that is strong mechanically and excellent in responsiveness to a speed is enabled, and by sending the output signal from the measuring part 15 to a control unit 7, an optimum condition for air adjustment for fire adjustment is obtained as suitable for the purpose.
摘要翻译：目的：通过拉伸三根电线来控制流量的测量，该三条电线包括线性加热丝和位于上游加热线下游的电阻丝，气体流过管道，另一条电线位于上游位置，不受热量影响并检测其电阻丝的电阻变化。构成：通过在圆柱形流量测量部件（例如空气滤清器2和节流阀6之间）内的测量装置10的陶瓷等制造的框架11的上部中使用电极16,17,18，在所述框架的下侧的槽116,117,118，由铂制成的电阻丝14在上游被拉伸，线13在下游拉伸，加热器12在中间部分。当电流被提供给加热器12时，电阻13的温度随着电阻值的增加而上升，电阻14表示与空气温度相对应的电阻值。每个电阻和每个加热器与测量部分15连接，并且通过使用加热器12和电阻13,14的加热功率的值的变化来评估流量。通过该过程，机械强度和对于速度被启用，并且通过将测量部分15的输出信号发送到控制单元7，为了达到这个目的而获得用于火灾调节的空气调节的最佳条件。

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