Method for protecting sun blinds from damage due to high winds has a pendulum mounted magnet and Hall effect sensors which determine maximum angular values

摘要

The sensing unit is contained within a housing (17) and has a magnet (4) on a pendulum (3) in an oil (8) filled casing (1) and Hall effect sensors (5) monitor the position of the magnet between them. The unit is attached to an arm on the blind and is deflected according to the wind strength.