PRESSURE SENSOR, ACOUSTIC MICROPHONE, BLOOD PRESSURE SENSOR, AND TOUCH PANEL

摘要

According to one embodiment, a pressure sensor includes a film part, and a sensing unit. A circumscribing rectangle circumscribing a configuration of a film surface of the film part has a first side, a second side, a third side connected to one end of the first side and one end of the second side, a fourth side connected to one other end of the first side and one other end of the second side, and a centroid of the circumscribing rectangle. The circumscribing rectangle includes a first region enclosed by the first side, line segments connecting the centroid to the one end of the first side, and to the one other end of the first side. The sensing unit includes sensing elements provided on a portion of the film surface overlapping the first region. Each sensing element includes a first, second magnetic layers, and a spacer layer.

主权项

1. A pressure sensor, comprising:
a film part supported by a support unit, the film part being flexible, a first length of the film part in a first direction in a film surface of the film part being longer than a second length of the film part in a second direction perpendicular to the first direction in the film surface; and a sensing unit, a circumscribing rectangle configured to circumscribe a configuration of the film surface, the circumscribing rectangle having:
a first side extending in the first direction to have the first length;a second side extending in the first direction to be separated from the first side;a third side extending in the second direction to be connected to one end of the first side and one end of the second side, the third side having the second length shorter than the first length;a fourth side extending in the second direction to be separated from the third side and connected to one other end of the first side and one other end of the second side, the fourth side having the second length; anda centroid of the circumscribing rectangle, the circumscribing rectangle including
a first region enclosed by the first side, a first line segment and a second line segment, the first line segment connecting the centroid to the one end of the first side, the second line segment connecting the centroid to the one other end of the first side, the sensing unit including a plurality of sensing elements provided on a portion of the film surface overlapping the first region, each of the plurality of sensing elements including a first magnetic layer, a second magnetic layer provided between the first magnetic layer and the film part, and a spacer layer provided between the first magnetic layer and the second magnetic layer, positions of at least two of the plurality of sensing elements along the first direction being different from each other.