| 摘要 |
<p>Mass airflow sensors (10, 34, 50) include a sensing element (11) on a first portion (18) of a thin flexible film substrate (19) while an extension of this substrate provides integral electrical conductive metallizations (24) that connect the sensing element (11) to associated sensor electronic components (21) mounted on a second portion (23) of the film substrate remotely located from the first portion. This eliminates the need for individual soldered wire connections to connect the sensing element to its associated electronics. Housing portions (12, 13) for the sensor (10, 34, 50) mate together and provide protection for the sensing element (11) and the sensor electronics (21) thereby providing an integral sensor module. The housing portions provide a cavity (29) remotely located from the sensing element so as to isolate the sensor electronics from the environment surrounding the sensing element. A self-powered and self-contained sensor (50) includes a power source (54) and visual display (56). Assembly of sensor electronic components is accomplished by mounting them to a planar flexible film substrate on which the sensing element is deposited. Subsequently, the flexible substrate may have portions thereof bent out of the plane of other portions.</p> |
