Micro speaker with capacitors formed by conductive segmented diaphragm and pole plate

A micro speaker, comprising:

• a vibration system including a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome and a suspension surrounding the conductive dome;
• the conductive dome including a plurality of units isolated from each other, and the suspension including a pair of long sides, a pair of short sides and arc sides connecting the long sides and the short sides;
• the suspension further including a plurality of conductive pads located on the arc sides respectively, each unit of the plurality of units of the conductive dome electrically connected to a corresponding one of the plurality of conductive pads;
• wherein the plurality of conductive pads are configured to output electrical signals;
• a magnetic circuit system including a lower plate, a first magnetic part on the lower plate, a second magnetic part on the lower plate, a pole plate attached to the first magnetic part, one of the first and second magnetic part being a permanent magnet for forming a magnetic gap;
• wherein each unit of the conductive dome forms a capacitor together with the pole plate for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement and unbalanced vibration of the diaphragm.