Explosion proof position sensor has shaft joining flat spiral spring and angle encoder in external pressure proor housing with measurement cable drum in unsealed housing

摘要

An explosion proof position sensor has a shaft (7) joining a flat spiral spring (4) and angle encoder (5) in an external pressure proof housing (6a) with measurement cable drum (2) in an unsealed housing (6b). Independent claims are included for assemlby procedures used in constructing the position sensor.