Sensitive electromagnetic field sensor


Posted on Feb 6, 2014

This is the circuit diagram of a very sensitive electromagnetic field sensor which can sense electromagnetic field from 40Hz to 140Hz. The low noise opamp LF351 and associated components forms the pick-up section. 1uH coil L1 is used for sensing the field and the IC1 performs the necessary amplification. If the picked electromagnetic field is in t


Sensitive electromagnetic field sensor
Click here to download the full size of the above Circuit.

he audio frequency range, it can be heard through the head phone Z1. There is also a meter arrangement for accurate measuring of the signal strength. Transistor Q1 performs additional amplification on the picked signal in order to drive the meter.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    The 25-30kV DC Generator
    Three-phase factor controller
    -15-V-1-a-regulated-power-supply
    Light-Wave Voice-Communication Receiver Circuit
    Simple Small Portable Alarm Circuit
    frequency multiplier for lf
    GSM/GPS Localizer with SIM908 module
    ELECTROLYTIC RUST REMOVAL
    AUDIBLE LIGHT SENSOR
    Combination of source is grounded and the emitter follower



    Top