| 摘要 |
<p>The present invention relates to sensing device and packaging. More particularly, the present invention relates to an improved active sensor for speed, position and direction sensing. According to the present invention the housing/container that accommodates the PCB is made of ferromagnetic material with opening at bottom and part of the magnet and the active sensing element of the PCB that extend outside the housing/container is covered / closed by a sensing element container which is made up of non metallic material.</p> |
