APOLLOUNIONSensorNet News:The University of Tokyo recently announced the invention of a new type of sensor. That is, there is no friction, only the specific coefficient of friction needs to be known by pressing. The invention is expected to detect all kinds of tires, shoe soles, slip warning and robots that can walk on ice without slipping.

The coefficient of static friction is calculated by using the ratio of the force pressed against the object to the force at the start of sliding in the sliding direction, and the larger the value of the coefficient, the more difficult it is to slip. However, it is difficult to measure the friction coefficient with the original sensor.

The sensor developed this time is configured in many places in the rubber material, which can detect deformation with high sensitivity according to the piezoelectric resistance effect.n Type silicon components.

When the sensor is pressed against an object, the sensor deforms in the left-right direction without sliding as a whole. The amount of deformation depends on the force that presses the sensor onto the objectofsize and the coefficient of static friction of the surface of the objectThe coefficient of static friction can be measured.

The tactile sensor by the University of TokyoIRTIt was developed by a research team composed of Professor Shimayama of the research institution and a first-year student of the Department of Information Science and Technology of the Graduate School of the University of Tokyo. The results of this study will be2016Year1Month24Day ~28The International Society held in Shanghai onMEMS2016（The 29th IEEE International Conference on Micro Electro Mechanical Systems) "published on.