"Employs a Hall Effect digital vane sensor and a permanent magnet in two small towers, separated by a 3.4 mm (0.135) air gap. The output switches when a ferrous target passes between the towers. Typical targets are linear or rotary vanes using a square saw tooth or an open slot in a solid disk or band","Features","Typical Applications"

特性

• Mechanically interchangeable with typical slotted optical switches
• Robust, high speed sensing in dirty/dusty environments
• No mechanical contacts to wear out
• Open collector (sinking or NPN) output can be used with bipolar or CMOS logic circuits with suitable pull-up resistor
• RoHS compliant
• Door/gate position control
• Exercise equipment
• Printers