Force and tactile sensing has experienced a surge of interest over recent decades. It conveys range information through physical interaction, including force, pressure, texture vibration. Even so, existing sensors have difficulty in precisely acquiring force signals to capture magnitude direction. This is because vision-based sensors, such as the popular GelSight sensor, estimate torque from di...

This paper focuses on peg-in-hole assembly based on a two-phase scheme and force/torque sensor (F/T sensor) for a compliant dual-arm robot, the Baxter robot. The coordinated operations of human beings in assembly applications are applied to the behaviors of the robot. A two-phase assembly scheme is proposed to overcome the inaccurate positioning of the compliant dual-arm robot. The position and...

Hydrogen detection is essential for its implementation as an energy vector. So far, palladium is considered to be the most effective hydrogen sensing material. Here we show that palladium-capped hafnium thin films show a highly reproducible change in optical transmission in response to a hydrogen exposure ranging over six orders of magnitude in pressure. The optical signal is hysteresis-free wi...

This paper presents the construction of a six-legged bio-mimicking robot. The mechanical design includes the actuation design based on shape memory alloy (SMA) actuators and the locomotive mechanism. The motion control system implements various gaits for the robot to maneuver. The sensors used in the control system include the accelerometer, the compass sensor and the step sensors. We develop a...

Wearable devices for fall detection have received attention in academia and industry, because falls are very dangerous, especially for elderly people, and if immediate aid is not provided, it may result in death. However, some predictive devices are not easily worn by elderly people. In this work, a huge dataset, including 2520 tests, is employed to determine the best sensor placement location ...

adequate coverage is one of the main problems for distributed wireless sensor networks and the effectiveness of that highly depends on the sensor deployment scheme. given a finite number of sensors, optimizing the sensor deployment will provide sufficient sensor coverage and save power of sensors for movement to target location to adequate coverage. in this paper, we apply fuzzy logic system to...

Wireless sensor network contain hundreds of sensor nodes. These sensor nodes uses radio signal using communication. A wireless sensor node is well found with radio transceiver, sensor device and power component. A wireless sensor network is made up of sensor, embedded techniques, distributed information mechanism. Wireless sensor network is much versatile as compared to traditional wireless net...

Pulsed eddy current (PEC) technique provides a means to inspect structures without surface contact. It is particularly useful when the structure's rough or inaccessible, such as insulated pipes in pipeline. Probe parameters of PEC system, especially sensing and excitation coil diameters, can significantly affect system's performance. Thus, detailed analysis these paramount developing system. Cu...