| 摘要 |
<p>PURPOSE:To reduce the fluctuation of the output of an air flowmeter by straightening a drift current in the direction perpendicular to a straight line along which measurement cannot be performed due to heating resistors arranged on the straight line so as to stabilize the flow velocity in the measurable area of the heating resistors. CONSTITUTION:Projecting sections 1a and 1b are formed from the internal wall surface of the main flow passage 1f of the body 1 of the flowmeter so as to constituted a throttle section 1c in the main flow passage 1f. The throttle section 1c is constituted so that the direction of the segment connecting the section 1c and resistors 2c1 and 2c2 can become parallel with the direction of the maximum width of the section 1c.</p> |
