Nanyang Technological University (NTU) scientists have invented a 'sense-ational' device, similar to a string of 'feelers' found on the bodies of the Blind Cave Fish, which enables the fish to sense their surrounding and so navigate easily.
Using a combination of water pressure and computer vision technology, the sensory device is able to give users a 3-D image of nearby objects and map its surroundings. The possible applications of this fish-inspired sensor are enormous. The sensor can potentially replace the expensive 'eyes and ears' on Autonomous Underwater Vehicles (AUVs), submarines and boats that currently rely on cameras and sonars to gather information about the environment around them.
The revolutionary, low-powered sensor is unlike cameras which cannot see in dark or murky waters; or sonars whose sound waves pose harm to some marine animals.
These extremely small sensors (each sensor is 1.8mm x 1.8mm) are now being used in AUVs developed by researchers from Singapore-MIT Alliance for Research and Technology (SMART), a research centre funded by the National Research Foundation. The centre is developing a new generation of underwater 'stingray-like' robots and autonomous surface vessels.
The new sensors, made using Microelectromechanical Systems (MEMS) technology, will make such robots smarter and prolong their operational time as battery power is conserved.
Associate Professor Miao Jianmin from the School of Mechanical and Aerospace Engineering, and his team of four have spent the last five years in collaboration with SMART to develop micro-sensors that mimic the row of 'feelers' on both sides of the Blind cave fish's body.
Associate Prof Miao said the line of sensors present on the fish's body is the reason why it can sense objects around it and still travel at high speeds without colliding with any underwater obstacles.
"To mimic nature, our team created microscopic sensory pillars wr
|Contact: Lester Kok|
Nanyang Technological University