In the ferromagnetic materials,the change of magnetization direction will
lead to the change of dielectric lattice spacing, then leads to the change
of length and volume of ferromagnetic material. Named: magnetostrictive
phenomenon,also called Wiedemann effect. And the inverse effect is
named Villari effect. But not all ferromagnetic materials have the value of
application,only those new materials which have high magnetostrictive
properties have the real value. The principle of magnetostrictive displacement
sensor:when the two different magnetic fields intersect,it will generate strain
pulse signal,the strain pulse signal is detected to calculate the exact location
of the magnetic field to the point of intersection.one magnetic field is from pulse
excitation which is generated by electronic components of sensor electronic
warehouse,the magnetic field generated by the pulse excitation follows
the waveguide wire inside the surveying rod ,from the electronic warehouse
side forward to the end by light speed.when it intersects with active permanent
magnetic field
lead to the change of dielectric lattice spacing, then leads to the change
of length and volume of ferromagnetic material. Named: magnetostrictive
phenomenon,also called Wiedemann effect. And the inverse effect is
named Villari effect. But not all ferromagnetic materials have the value of
application,only those new materials which have high magnetostrictive
properties have the real value. The principle of magnetostrictive displacement
sensor:when the two different magnetic fields intersect,it will generate strain
pulse signal,the strain pulse signal is detected to calculate the exact location
of the magnetic field to the point of intersection.one magnetic field is from pulse
excitation which is generated by electronic components of sensor electronic
warehouse,the magnetic field generated by the pulse excitation follows
the waveguide wire inside the surveying rod ,from the electronic warehouse
side forward to the end by light speed.when it intersects with active permanent
magnetic field