New Photointerrupter OPIC Output
Photocoupler (光藕合器)
A coupler is consisted of one couple of emission and receiving elements.&nb...
Photointerrupter (光遮斷器)
Interrupter is one kind of convertible device that uses singal of light and...
Magnetic contact (磁簧開關)
Magnetic contact is a proximity switch what is used magnetic field of magnet to actuate Re...