Design of Signal Conversion Circuit for Magnetoelectric Sensor Based on Addition and Subtraction Operation
Magnetoelectric sensor is applied to the engine speed measurement,the output signal amplitued,frequency and speed proportional relations,this paper introduced a new type of magnetoelectric sensor signal conditioning circuit,analysed the working principle of the sensor and the signal characteristics,designed for single chip microcomputer signal acquisition of filter,add and subtract operation circuit and voltage compara-tor circuit,circuit parameters was given,and the validation test.Experimental results show that the circuit is the clever use of amplification bias circuit,ealizes the magnetoelectric sensor wide amplitude,wide frequen-cy signal acquisition,signal integrity,convert acquisition of high precision,strong anti-jamming capability.
magnetoelectric sensorlimit amplitude circuitadd and subtract operation circuitvoltage comparator circuitanti-jamming
万方数据
维普
