3D printed acoustic levitator puts technology into homes and schools

According to the university, the technology, published in Review of Scientific Instruments, could be applied to a range of applications including blood tests.

Acoustic levitation uses powerful acoustic waves to push particles from all directions and trap them in mid-air. By using ultrasound it is possible to use powerful vibrations without causing any harm to humans.

Magnetic levitation uses magnetic fields to suspend objects in mid-air. Whilst not as strong as magnetic levitation, acoustic levitation can act on a range of materials, from liquids to living animals.

Using parking sensors, a motor driver, an Arduino single board microcontroller and a 3D-printed part, the Bristol team has developed an instruction pack for those wanting to assemble their own levitator at home or school.

The instructions will enable any researcher to put together a levitator and conduct experiments in acoustic levitation. This levitator is said to be safe to use, robust against temperature or humidity changes, and can operate for extensive periods of time, enabling experiments that were not possible before.