The electromagnetic flow meter is installed in the water circuit of the trainer. It operates according to Faradays Law of Induction. When a conductor is moved in a magnetic field, a voltage is induced in the conductor. The flowing fluid represents the moving conductor. The magnetic field is generated by a switched direct current of alternating polarity. The induced voltage is tapped at two insulated electrodes. The magnitude of this induced voltage is proportional to the flow rate. A display indicates the flow rate. The necessary connections are provided so that the pressure loss can be determined with the.
Learning Objectives / Experiments
Familiarisation with the principle of operation
Flow measurement
Plotting a pressure loss curve
Comparison with other flow meters
Specification
Electromagnetic flow meter as accessory for flow meter trainer
Operates according to Faraday's Law of Induction
Display indicating flow rate
Connections to facilitate pressure loss measurement with the flow meter trainer
Connections to supply auxiliary power via flow meter trainer