Gordon Engineering Machine guarding
ProxaGard is based on radio frequency (RF) presence-sensing technology. It combines RF signal transmission with capacitive presence sensing. A control unit together with a coupler generates a low-level RF field around a 3-D customizable antenna. Any part of a person or object intruding the area the antenna is placed around, attenuates the signal. The control unit senses the attenuated field and triggers a machine stop.