The OPG is a device which uses an artificial hard palate coveredwith 16 fibre optic sensors to dynamicly measure tongue-palate contact, distance and pressure. The system uses reflected light distance sensing.
The system is still in development and is not yet publicly available. More details can be found at:
Department of Speech and Language Sciences
Queen Margaret College
Tel: +44 131 317 3692
Fax: +44 131 317 3689