5th International Conference on Spoken Language Processing

Sydney, Australia
November 30 - December 4, 1998

Cantilever-Type Force-Sensor-Mounted Palatal Plate for Measuring Palatolingual Contact Stress and Pattern During Speech Phonation

Masafumi Matsumura (1), Takuya Niikawa (1), Takao Tanabe (1), Takashi Tachimura (2), Takeshi Wada (2)

(1) Osaka Electro-Communication University, Japan
(2) Osaka University, Japan

A 15-cantilever-type force-sensor unit is presented for the measurement of palatolingual contact stress and pattern during palatal consonant phonation. The force sensor unit is composed of a strain gauge and a cantilever, and is embedded in a thin palatal plate attached to the human hard palate. It is 3 mm wide, by 5 mm long, and 1.3 mm thick. The output of the force sensor unit at the low stress range of 0-64 kPa (0-5 gw) is proportional to the stress applied to the force sensing unit, with nearly no hysteresis. Measurement error of the force sensor is less than 1.7%. Error by mechanical interference among cantilever-type force sensors is less than 0.2%. The presented 15-cantilever-type force-sensor-mounted palatal plate allows for ready observation of the dynamic aspect of the palatolingual contact stress and patterns during the phonation of consonants.

Full Paper

Bibliographic reference.  Matsumura, Masafumi / Niikawa, Takuya / Tanabe, Takao / Tachimura, Takashi / Wada, Takeshi (1998): "Cantilever-type force-sensor-mounted palatal plate for measuring palatolingual contact stress and pattern during speech phonation", In ICSLP-1998, paper 0507.