▎ 摘　　要

NOVELTY - The audio transducer comprises a magnet for providing a magnetic field within a magnetic zone, and a first graphene sheet (100) is located within the magnetic zone, where a rotating portion rotates about an axis of rotation relative to the static portion. A second graphene sheet has a fixed position relative to the first graphene sheet. A third graphene sheet has a first position relative to the first and second graphene sheets. A diaphragm has a rest position, and vibrates about the rest position in response to sound waves. A mechanical linkage is provided between the diaphragm and the rotating portion. An analogue digital converter converts the output signal to a digital output signal. USE - Audio transducer, such as microphone, for use on spacecraft or on instruments for use on other planets or satellites. Uses include but are not limited to loudspeakers, electric motors, and rotary encoders. ADVANTAGE - The graphene-based audio transducer is capable of converting rotational kinetic energy into electrical potential or converting electrical potential into rotational kinetic energy, and ensures to obtain a highly accurate measure of the transducer overall angle, and since graphene is able to operate reliably at extremes of temperature and has a degree of immunity to radiation, thus audio transducer can be applicable in more extreme conditions. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an audio transducer. 100Graphene Sheet 130First Narrow Portion 140Wide Portion 200Current Flow 210Current Flow Lines