A highly repeatable on/off signal is accomplished using a rare earth magnet embedded directly on the end of the internal screw. As the screw moves in and out of the actuator, the magnet moves toward and away from the sensor face causing the device to switch states. The proximity sensor is designed to operate in a digital switch mode using an open-collector output through an integrated NPN transistor switch. The proximity switch is a three wire device and requires a supply voltage of 3.8 VDC minimum to 24 VDC maximum with a current consumption of 10 mA max.
One Inch Can-Stack Linear Actuator Has Proximity Sensor
Thu, 02/17/2011 - 6:26am
Haydon Kerk Motion Solutions Inc., a leading manufacturer of precision linear motion products, offers an integrated end-of-stroke proximity sensor available on the one inch 25000 Series captive linear actuators. The proximity sensor utilizes miniature hall effect technology in an IC package mounted directly on the actuator. The hall effect is an ideal technology with a virtually unlimited on-off cycle life due to the non-contact operation of the switch. The Haydon can- stack linear actuator with the integrated proximity sensor is perfect for limited space applications.