U.s. Scientists Develop Insect Wing Aircraft Vibration Generating Their Own

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According to the American physicist organizational networks reported over the years, scientists in the manufacture of micro air vehicle modeled on insects (MAVs) study, has been facing a power supply can be sustained to carry the challenge. Recently, the University of Michigan scientists another way, the direct use of the real insects to solve a problem in aircraft power.

University of Michigan Electrical Engineering and Computer Science School of Aise Mu - Aquin - Acre Dhaka and colleagues developed an energy collector, the use of green flower beetles (GreenJuneBeetle) wing vibration during flight to generate electricity, through a piezoelectric device, so that each beetle's overall electric power output of 45 mW. They predicted that if the beetle flight muscle and the generator directly connected to the case, power generation can be increased an order of magnitude. This also marks the first time, with live insects and non-resonant devices to capture energy. Related papers published in the recently published "micro-mechanics and micro-engineering magazine" on.

Prior to collection of insects, including the use ...
... of energy methods to collect insects thermocouple body heat, or magnetic resonance vibrational energy collection device. However, the frequency of vibrations of different beetle wings are very different, the same beetles in different conditions of the vibration frequency is different, so the non-resonant device in order to effectively collect all kinds of vibration energy.

In the experiment, the researchers tested the use of piezoelectric devices were beetle wings, breasts and wings sheath part of generating capacity. Piezoelectric device capable of 85 Hz to 105 Hz operating frequency, which is green flower beetles wing vibration frequency range. Experiments showed that the closer the energy collector bottom flight muscles (vibration source), by mechanical pressure the greater the power output will be. Switching to a larger piezoelectric device, in the best position to achieve 115 mW.

"This device can also expand to the same insect body, its weight than the resonance energy collector greatly reduced. Without regard to frequency conversion, solar thermal environmental conditions, then the output power can be huge." Askar Dhaka said, "Although the development of micro air vehicle has made great progress, but in aerodynamic performance, flight time, load capacity, the miniaturization of energy reserves, the machine insects advantages our current technology with the natural world for thousands of years of evolution is also compared too simple. "

Insects can machine to use as a micro air vehicle, perform search and rescue, tracking, monitoring of hazardous environments, detecting explosives and other tasks. Aka Dhaka said: "We are working on a piezoelectric ceramic and a combination of traditional silicon manufacturing technology to improve the micro-vibration energy collector efficiency."
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