Title :
Tactile sensing based on acoustic resonance tensor cell
Author :
Shinoda, Hiroyuh ; Matsumoto, Kenichi ; Ando, Shigeru
Author_Institution :
Div. of Electron. & Inf. Eng., Tokyo Univ. of Agric. & Technol., Japan
Abstract :
We propose a new tactile sensing element, the acoustic resonant tensor cell. The structure is a spherical cavity in an elastic tactile sensor body with two fine ultrasound paths extended respectively to an ultrasonic transmitter and receiver which are placed at the bottom of the elastomer. The acoustic resonant frequency of the air in the cavity has an explicit relation with the principal stresses around it, which is easily detected by the ultrasonic transducers. The sensor is simple and elastic. The single structure obtains useful multi-dimensional tactile features. The principle of the device and experimental results are described
Keywords :
acoustic receivers; acoustic resonators; intelligent sensors; silicone rubber; stress measurement; tactile sensors; ultrasonic transducers; acoustic resonance tensor cell; elastic tactile sensor body; elastomer; multi-dimensional tactile features; spherical cavity; tactile sensing element; transparent silicone rubber; ultrasonic receiver; ultrasonic transducers; ultrasonic transmitter; ultrasound paths; Acoustic devices; Acoustic sensors; Acoustic signal detection; Resonance; Resonant frequency; Tactile sensors; Tensile stress; Transmitters; Ultrasonic imaging; Ultrasonic transducers;
Conference_Titel :
Solid State Sensors and Actuators, 1997. TRANSDUCERS '97 Chicago., 1997 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-3829-4
DOI :
10.1109/SENSOR.1997.613599