Aiming at metal detection

according to theory of Wheatstone bridge

magnetic field is transformed into weak voltage signal

the voltage signal is amplified by differential amplifier circuit to obtain voltage signal which can be processed

through optimization of the circuit

so as to make sensor work more stably and accurately.Experiments show that within a certain range of ferromagnetic metals

HMC1001 can detect changes in magnetic field caused by ferromagnetic metals.It can be widely used in food

pharmacy

daily use chemicals

and so on.