Electric Field Meter

INRODUCTION

What is the EMF? EMF mean is Electromotive force. EMF refer to voltage generated by a battery or by the magnetic force according to faraday’s law, which states that a time varying magnetic field will induce an electric current. Electromotive “force” is not a force but a potential, or energy per unit of charge, measured in volts. Formally, EMF is the external work expended per unit of charge to produce an electric potential difference across two open-circuited terminals. The electric potential difference produced is created by separating positive and negative charges, thereby generating an electric field. The created electrical potential difference drives current flow if a circuit is attached to the source of EMF.

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OBJECTIVES

  • Identify EMF area 
  • Determine the strength of Electric flux strength 
  • Ghost hunting 
  • Preventing from biological bad effect

Internal Amplifier Circuit

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Circuit Diagram

Above amplifier circuit directly connecting to the microcontroller and then after calibrating electric field strength display in the LCD.

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Antenna

There are various kind of antenna available in the market.  normally in domastic distribution lines frequency range is around 50Hz. there for I built an antenna which suitable for that range.

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Available antenna in the market

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Future plans – Increased the sensitivity.

 

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