A pressure sensor includes a sensor chip. The sensor chip has two diaphragms, recessed portions that serve as first pressure inlet chambers disposed so as to respectively adjoin top surfaces of the diaphragms, and recessed portions that serve as second pressure inlet chambers disposed so as to respectively adjoin bottom surfaces of the diaphragms. A cavity is provided in the sensor chip such that, when a difference between pressures respectively applied to a top surface and bottom surface of the diaphragm is zero, an output voltage of a Wheatstone bridge circuit made up of strain gauges provided in the diaphragm is zero.

A pressure gauge includes an introduction member, a connection member, a bourdon tube, a pointer, a dial plate, a detector, and an information communication unit. A battery installed in the information communication unit is disposed between a circuit board and a lid. The information communication unit is inserted in a through hole of the dial plate to be disposed astride between a front surface and a rear surface of the dial plate and the lid is disposed on a side of the information communication unit close to the front surface of the dial plate.

Provided is a pressure-strain sensor including a graphene structure having a three-dimensional porous structure, planar sheets provided on a surface of the graphene structure, and a polymer layer configured to cover the graphene structure and the planar sheets, wherein each of the planar sheets contains a transition metal chalcogenide compound.

A pressure-sensor device (1) comprises: a pressure-sensitive component (5, 5a, 6), having a sensor body (5) that includes an elastically deformable membrane part (5a) and at least one detection element (6) suitable for detecting a deformation of the membrane part (5a); a supporting structure (2, 3) for supporting the pressure-sensitive component (5, 5a, 6), having a passageway (15) for a fluid of which a pressure is to be measured. The supporting structure (2, 3) comprises: a supporting body (2) with respect to which the sensor body (5) is positioned in such a way that its membrane part (5a) is exposed to the fluid exiting the passageway (15), the supporting body (2) having at least one through cavity (14), a compressible body (16), which is configured for compensating possible variations of volume of the fluid. The supporting body (2) has a first body portion (2c) comprising a transverse wall (22) of the through cavity (14), defined in which is at least one first passage (23a-23b) and at least one second passage (24), the at least one first passage (23a-23b) belonging to the passageway (15) for the fluid. The compressible body (16) is an element over-moulded with respect to the supporting body (2), that has respective opposite portions (20, 21) which extend in positions corresponding to opposite sides of the transverse wall (22), and which are connected to one another via at least one intermediate portion (16a) of the compressible body (16) that that extends through the at least one second passage (24). The first body portion (2c) is shaped to define at least one step or one projection or one relief (25; 28) which determines at least one of: a cross-sectional narrowing of the at least one second passage (24), configured to define a corresponding cross-sectional reduction of the at least one intermediate portion (16a) of the compressible body (16), and a development of the at least one intermediate portion (16a) of the compressible body (16) which is generally tortuous or comprises a number of stretches substantially angled to each other.

Provided is a semiconductor pressure sensor which includes: five connection pads having plate shapes and formed of conductive materials, respectively, and arranged in parallel with each other; and four semiconductor resistance units connecting a predetermined pair of the connection pads to each other among the connection pads and having resistance values varying in proportion to a variation of a length due to the external pressure, wherein the five connection pads include a power supply pad, a first output voltage pad, a first ground pad, a second output voltage pad, and a second ground pad.

A pressure sensor for detecting a pressure of a fluid medium in a measuring chamber and a method for manufacturing the pressure sensor are provided. The pressure sensor includes a pressure connector, with the aid of which the pressure sensor is attachable to or in the measuring chamber, and a sensor element for detecting the pressure of the fluid medium. A feed channel is formed in the pressure connector. The sensor element is situated on a substrate. The feed channel is sealed off by the substrate and is designed to feed the fluid medium to the sensor element. The pressure connector and the substrate are designed as one piece and the sensor element is printed onto the substrate.

A pressure sensor device of the present invention includes a first board including external connection terminals, a second board stacked on an upper surface of the first board and including a first through hole and a second through hole, a pressure sensor element including a diaphragm structure and mounted on an upper surface of the second board such that the first through hole is closed by the diaphragm structure, and a cover that is mounted on the upper surface of the second board to cover the pressure sensor element and in which a first channel for guiding a first fluid to an upper surface of the diaphragm structure is formed. A second channel is formed between the first board and the second board to lead from the second through hole to the first through hole and guide a second fluid to a lower surface of the diaphragm structure.

Disclosed in an embodiment is a pressure detection sensor comprising: an elastic layer including a hole; and an electrode layer including a plurality of electrodes arranged on the elastic layer so as to be spaced apart, wherein the elastic layer includes a variable member arranged in the hole, the plurality of electrodes are electrically connected to each other by outside pressure, and at least one of the plurality of electrodes covers a part of the hole.

A sensor unit for a fluidic cylinder having a base carrier on which a circumferential seal is formed, so that an interior of the fluidic cylinder is sealable, and having a position sensor for detecting a position of the piston, and having a pressure sensor for detecting a pressure in the interior.

An electronic device includes a package substrate, a circuit assembly, and a housing. The circuit assembly is mounted on the package substrate. The circuit assembly includes a first sealed cavity formed in a device substrate. The housing is mounted on the package substrate to form a second sealed cavity about the circuit assembly.