| 摘要 |
<p>PURPOSE:To shorten the distance in the direction of an air flow, to make the distribution of temperature adequate all the time and to secure stable detecting accuracy by using a strip shaped resistor for a flow-speed detecting resistor, and arranging a pair of lead members on both surfaces. CONSTITUTION:A base material 11 of a detecting element is divided into two parts with a slit 11a. An intake-air-temperature detecting resistor 12 is formed at the wide part. A pair of lead members 14a and 14b are electrically connected to the resistor. Lead members 15a and 15b are juxtaposed on the narrow part of the base material 11. A flow-speed detecting resistor 13 is attached to the upper surface of the members 15a and 15b. The resistor 13 is formed in a strip shape with a thin film of platinum and the like. Since the width of the strip shaped resistor, i.e. the distance in the direction of the intake-air flow is short in this constitution, the different temperature distributions are not formed at the input side and the opposite side as shown in a conventional device, and the uniform distribution is obtained. Therefore, the detecting accuracy can be maintained highly accurately all the time regardless of the flow speed of the intake air and the magnitude of the amount of the air.</p> |
