Make a Magnetic Reed Switch Work Backwards (sort Of)
Intro: Make a Magnetic Reed Switch Work Backwards (sort Of)
A reed switch normally goes ON when a moving magnet is near.
Adding a second non-moving magnet to balance the field will make it OPEN when the moving magnet is in the right spot.
Adding a second non-moving magnet to balance the field will make it OPEN when the moving magnet is in the right spot.
STEP 1: The Norths and the Souths of It
The magnet with the north pole at the top is adjusted until the switch turns OFF with the other moving magnet in it's 'special' position.
When the moving magnet moves either closer or farther, the switch turns ON.
When the moving magnet moves either closer or farther, the switch turns ON.
9 Comments
shinojmahe 9 years ago
i need to make a toy, that the magnet will keep 3 to5 Inches away from this circuit, still this circuit should start,
what type of reed i have to use with?? pls guide me
VIRON 17 years ago
flxforce 12 years ago
• Open Loop = When a magnet is in close proximity to the switch, the switch is open.
• SPDT = This switch has a common, closed & open side.
• DPDT = This switch has two SPDT reeds in the same switch housing, each having it's own common, closed, and open side.
• Dual Single Pole Single Throw = Two closed loop reeds in one switch housing
penixnet 14 years ago
thanks to you I was able to complete my project.
GOOD WORK!
manicmonday 15 years ago
Handsome-Ryan 16 years ago
leevonk 17 years ago
pinski1 17 years ago
ikarias 17 years ago