| 摘要 |
PROBLEM TO BE SOLVED: To provide a distortion sensor, pressure sensor, microphone, blood pressure sensor, portable information terminal, and hearing aid that enable removal of an external magnetic field or suppression of occurrence of echo.SOLUTION: According to an embodiment, a distortion sensor includes: a base body; a distortion detection element, a magnetic field detection element, and a processing unit. The base body has a deformable film body. The distortion detection element is provided on the film body, and includes: a first magnetic layer that has first magnetization; a second magnetic layer that has second magnetization; and a first intermediate layer that is provided between the first magnetic layer and the second magnetic layer. The magnetic field detection element is provided on the base body in a part other than the film body part, and includes: a third magnetic layer that has third magnetization; a fourth magnetic layer that has fourth magnetization; and a second intermediate layer that is provided between the third magnetic layer and the fourth magnetic layer. The processing unit processes an output signal of the distortion detection element and an output signal of the magnetic field detection element. |
