著者

香川 利治

出版者

公益社団法人 計測自動制御学会

雑誌

計測自動制御学会論文集 (ISSN:04534654)

巻号頁・発行日

vol.18, no.6, pp.617-621, 1982

被引用文献数

2 2

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A pneumatic nozzle flapper is widely used in pneumatic control systems and is one of the important converting elements. Its transient pressure response has been investigated in several papers, but the case with small time constant has not been reported so far. This paper shows experimentally that the time constant of pneumatic nozzle flapper varies with the direction of pressure step and the position of load capacitor.<br>In the case with steady flow through the load capacitor, the time constant is larger in general than that of side-capacitor, and the time constant of negative pressure response is smaller than that of positive one. These differences are considered to be caused by the heat conduction between air and the capacitor wall.