Coin rejection

C) Procedure

1. Balance in air!

2. Put the probe consequently on the biggest coin of each material group!

3. Optimise the inspection frequency!

4. Record the signals of all coins into one image filling using the XY-plane!

5. Demonstrate the automatic recognition of the 2 Euro coin (use the traffic light)!

 

A) Job

Optimise the inspection parameters for coin rejection!

 

B) Utensils

1. Absolute probe

2. Euro coins

 

 

D) Report

1. EddyCation report of  the best result.

2. Why you cannot use the differential probe for this job?

3. According to which criteria use have to optimise the frequency?

4. How you can distinguish between coins of the same material, e.g. 10, 20 and 50 Cent?

5. Discuss the limits of eddy current coin rejection!

Eddy current inspection with EddyCation

   Coins

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