| 摘要 |
Coin validation apparatus comprising a coin path (2, 5, 6); an impact element (14) disposed in the coin path to be contacted by a coin (10); an impact transducer (8) arranged to generate an output signal in dependence on vibration of the impact element (14); and control means (7) for determining a coin parameter based on the output signal; characterised in that the impact element (14) is shaped to create multiple impacts with a passing coin (10).
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