The Humanities lab has two electromagnetic articulographs (EMAs): one AG501 and one AG500. They are both used to measure and record articulatory speech movements in 3D, for instance of the tongue, the mouth and the jaw. The measurements are obtained by an electromagnetic field and small sensor coils that are attached to the articulators, such as the tongue. Up to 16 coils can be recorded simultaneously. The sampling frequency is 1250 Hz (AG501) / 200 Hz (AG500) and well suited for registration of fast speech movements.