Patent ID: 8549901

Claim:
A sensor structure comprising: a mass airflow measurement element that is configured to measure a mass airflow flowing in an intake pipe; a humidity sensing element that is configured to sense a humidity of air flowing in the intake pipe; a housing structural component having a connector that is configured to receive external signals and to send signals generated by a terminal component of the connector; a bypass passage that is formed by a part of the housing structural component that protrudes into the intake pipe and that takes in part of the air that flows in the intake pipe, the mass airflow measurement element being mounted in the bypass passage; a space that is formed in the housing structural component in the vicinity of the bypass passage; a first air communication channel that is configured to connect an upstream side of the bypass passage to the space; and a second air communication channel that is configured to connect a downstream side of the bypass passage to the space, wherein the humidity sensing element is mounted in the space, and a part of the space is substantially devoid of a structure sealed by at least one of an adhesive and a seal material.