Sensor and electronic device

A sensor, comprising:

• a first element portion;
• and
• a first circuit portion,
• the first element portion includes:
• a first base,
• a first fixed portion fixed to the first base,
• a first movable portion supported by the first fixed portion, a first gap being provided between the first base and the first movable portion, the first movable portion including a first movable electrode, a second movable electrode, a third movable electrode and a fourth movable electrode;
• a first fixed electrode fixed to the first base and facing the first movable electrode,
• a second fixed electrode fixed to the first base and facing the second movable electrode;
• a third fixed electrode fixed to the first base and facing the third movable electrode, and
• a fourth fixed electrode fixed to the first base and facing the fourth movable electrode;
• a second direction from the first fixed electrode to the first fixed portion crossing a first direction from the first base to the first fixed portion,
• a third direction from the second fixed electrode to the first fixed portion crossing the first direction and crossing the second direction,
• a direction from the first fixed portion to the third fixed electrode being along the second direction,
• a direction from the first fixed portion to the fourth fixed electrode being along the third direction,
• the first circuit portion includes a controller,
• the controller being configured to perform a first operation,
• the first operation including:
• deriving a first value corresponding to a vibration direction of the first movable portion based on a first signal obtained from the first fixed electrode and a second signal obtained from the second fixed electrode, and
• synchronously detecting a first function value of the first value and a second function value of the first value.