An evaluation of an alternating magnetic field device for monitoring tongue movements
Betty Tuller, Shuyong Shao, J. A. Scott Kelso · The Journal of the Acoustical Society of America · 1990
Alternating magnetic field devices hold much promise for tracking movements of multiple articulators, including the tongue, in the midsagittal plane. Here, the accuracy, repeatability, and linearity of one such device, the Articulograph AG-100 (Carstens Medizinelektronik GmbH, Göttingen, West Germany), are evaluated. The results indicate that with proper precautions in transducer calibration and placement, the Articulograph can be a useful tool in speech production research.