| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pressure measuring device which has no part where a fluid to be detected stagnates, does not cause contact of a detection element with the fluid to be detected, and dispenses with pipe cutting even when the pressure of a pipe line is measured. <P>SOLUTION: A tube 13, in which a fluid to be detected flows, is arranged inside a holding recess 12 of a housing 10. One end in an axial direction of the holding recess 12 is closed by a seal member 16, and the other end side is formed with a throat 21 having an internal diameter slightly smaller than an external diameter of the tube 13. A supply pressure is applied to the holding recess 12 through a supply port 27, and the pressure in the holding recess 12 is brought out through an output port 29. When the pressure of the fluid in the tube 13 increases, the amount of gas escaping through the throat 21 decreases and output pressure increases. On the other hand, when the pressure in the tube 13 decreases, the amount of the gas escaping through the throat 21 increases and the output pressure decreases. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
