Surveillance apparatus of a torsion Spring designed to work in a pre-stressed Gate, a door or similar

摘要

Apparatus for monitoring a torsion Spring designed to work in a pre-stressed Gate, a door or similar, particularly as Spring Weight compensation to a Road Gate of one or several Parties, in an elevated position movable Armor, or a Roller door.A torque sensor comprises at least one of the two Extreme Areas of the torsion Spring (3), being made the recipient strain gage in Strip form or in the form of Electric Switch, equivalent to a Converter Signal present in the recipient Strain.