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We propose new electromagnetic actuation of a microrobot by utilizing geometric constraints in a blood vessel. In our concept, a microrobot travels in a vascular network while keeping the contact to the vascular wall. In the paper, forces working on the microrobot are modeled in two dimensions, and conditions to propel the microrobot while pushing it against the vascular wall are described. The design...
Hard Disk Drive (HDD) is expected to remain a good choice in many consumer electronics and portable devices due to its various advantages. Built-in devices, such as speakers, in notebook PC are one of the major vibration sources causing performance problems of HDD. The effects of air borne and structural borne oscillating forces, generating from speakers, acting on HDD are investigated by experiments...
A flexible support mechanism for hard-disk drives (HDDs) was devised, prototyped, and evaluated. The flexible support mechanism intercepts the external vibration of a lower frequency than its natural frequency; therefore vibration disturbance in the HDD decreased. Moreover, the resonance frequency of an HDD with a flexible support mechanism is lower than that of an HDD without the mechanism. The servo...
We aim at developing an autonomous rollover protection system for rescue robots. In this study, we propose a method for autonomous rollover protection for tracked mobile robots using distributed touch sensors. We developed touch sensors for tracked robots, and we have also installed them into our developed tracked robot having four flipper arms. We have also explained the system construction and evaluation...
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