Signal-Type Wiegand Sensor WG311
Signal Type Wiegand Sensor Supplier
No need the power supply when it works.
Bipolar excitation working mode, the sensor outputs a pair of
positive and negative electrical pulse signal when the magnetic
field polarity changes for a circle.
Only when the external magnetic field polarity changed, and
magnetic strength reaches the excitation threshold, the sensor will
outputs a pulse signal, so the vibration won’t happen. The
operation is stable and reliable.
The signal amplitude has nothing to do with the magnetic field
changing speed, and it can work at the speed near to zero.
The output signal can be remote transmitted by the signal lines, so
it’s suitable for LAN management.
No mechanic contact, no spark, is a kind of intrinsic safety
Wide operating temperature range, strong environmental
Zero power consumption sensor WG311 ( it also be called Wiegand
Sensor) is a kind of new type magnetic component that is made based
on Wiegand effect. It can initiative generate energy, no need
external power when it works. It can give a sharp voltage pulse
signal. The sensor consists of a special processed alloy wire and
induction coil which winds on the outside of wire , framework and
The alloy wire owns double magnetic structure, its core is soft
magnet, and the shell is hard magnet. To utilize the magnetic
difference between the alloy wire’s inside and outside, under
excitation by suitable strength of alternating magnetic field, the
core magnetization direction everted in a moment, the direction
became same or opposite with that of shell, and make the magnetic
field around alloy wire changed suddenly, then a group of positive
and negative pulse generated in the induction coil. The pulse
amplitude is only regard with strength of the excitation field, and
it has nothing to do with the field changing speed. It realized
“Zero Speed” counting detection.