Sensor unit for detection of a passenger sitting in a motor vehicle passenger seat comprises one or more strain gauges with a mounting arrangement that ensures a calibration prior to mounting is still valid after mounting

摘要

Sensor comprises a sensor body with three mounting points with a first mounting point arranged between two outer mounting points. A measurement sensor, such as a strain gauge, attached to the sensor body records deflection of the first fastening point in a direction perpendicular to a line linking the other two connection points. The sensor also has a support plate that is fixed between the two mounting points and the sensor body so that there is a free space between it and the sensor body.