| 摘要 |
<p>In relation to a humidity sensor sensitive to water and contamination, a sensor implementation structure that achieves both the protection performance against water and contaminants and measurement performance such as humidity responsiveness is provided. A sensor structure has a mass airflow measurement element that measures a mass airflow flowing in an intake pipe 1, a humidity sensing element 5 that senses humidity of air flowing in the intake pipe 1, a housing structural component 7 having a connector that carries out input/output to/from outside and a terminal component 17 of the connector, and a bypass passage 14 that is composed by using part of the housing structural component 7 and takes in part of the air that flows in the intake pipe 1, the mass airflow measurement element being mounted in the bypass passage 14; wherein space 18 is provided in the housing structural component 7 in the vicinity of the bypass passage 14, the humidity sensing element 5 is mounted in the space 18, and the part of the space 18 does not have a structure sealed by an adhesive, a seal material, or the like.</p> |
