Patent ID: 6678164
Filing Date: 2004-01-13
Classification: G01L

Abstract:
A pressure sensor comprising:a first case having a first surface, and a second surface opposite to the first surface; a sensor element for detecting pressure, the sensor element being disposed in the first case on a side of the first surface; a terminal embedded in the first case to be fixed in the first case, the terminal being electrically connected to the sensor element and an outside; a second case having an inner wall surface defining an approximate cylindrical hollow portion, the second case being bonded to the first case to have a cover surface that cover at least a part of the second surface of the first case; and a capacitor for restricting a noise current applied to the sensor element, wherein: the terminal includes an extending portion extending in an axial direction in which the first case and the second case are connected; the extending portion of the terminal protrudes from the second surface of the first case into the hollow portion of the second case in the axial direction to have a protrusion end being electrically connected to the outside; the terminal includes a branch portion branched from the extending portion and embedded in the first case; a part of the branch portion is exposed to the second surface to form an exposed portion; the capacitor is disposed on the exposed portion to be electrically connected to the exposed portion; and the second surface in the first case has a radial dimension that is larger than a radial dimension of the hollow portion at a predetermined position where the top end of the extending portion of the terminal is positioned.