earticle

영어

Original pressure sensitive film (the main ingredients are polymers) has the ability to sense stimuli and function as a tactile sensor. However, its effectiveness is not very good. To make up for this, flexible pressure-sensitive materials using CNT polymer substrate is used instead of conductive particles such as carbon black. In the case of nano particles of pressure-sensitive material using CNT conductive filler, the electrical conductivity increases by particle quantum tunneling effect by decreasing of particle spacing. So it’s able to develop signal strength and resolution comparing to pressure sensitive materials before. Especially it is much more effective to touch two tactile sensors together than using as it is. At this point, conductivity shows different phenomenon according to nano patterns in the touched area. To find the most effective pattern, I tested the tendency of effectiveness of the tactile sensor depend to the changes of the surface pillars’ size. To maximize the effectiveness of the tactile sensor, smaller size of pillars was better.