Providing outstanding electronic hardware and software engineering product development services

Coin Validators

The C22 and C10 validators are widely used in photocopy, lighting and boom gate control. Low cost design was imperative in this development. Inexpensive and small microcontrollers were used. Pinhole optics were used to measure diameter with speed compensation. Inductive coupling modulation was used in the C22 to measure two ferromagnetic properties of the coins for better slug rejection.

Significant design elements were:

  • Efficient code design to fit into small resource microcontrollers
  • Electrical safety isolation barriers
  • Innovative low cost inductive measurement circuitry.

Level 3, 25 King Street
Rockdale NSW 2216
Phone 9599 3255

Issue 160313