The invention includes differential pressure transducer assembly systems and methods in which headers are configured with header pins that extend perpendicular with respect to an axis of the assembly and through header sidewalls, enabling a compact configuration, ease of assembly, enhanced reliability and/or redundancy. Channels and ports defined in a housing portion of the assembly are configured to enable the use of substantially straight tubing sections for routing main and/or reference pressures to one or more differential sensing elements mounted on the headers. Two or more headers with associated sensing elements can be stacked to provide redundant differential pressure sensing.

A device for detecting a sudden pressure variation in a fluid, including a housing open at one of its ends, a wall closing the housing to create a chamber, the wall being configured such that, when the external pressure outside the chamber is substantially stable or varies slowly, the internal pressure of the chamber is close to the external pressure, and the wall having mechanical characteristics such that it breaks when subjected to a predetermined difference between the external pressure and the internal pressure.

A sensor package includes a sensor, at least one external wall, and an interposer, arranged between the sensor and the at least one external wall. The sensor is wire bonded to the interposer and the interposer is wire bonded to the at least one external wall. Using an interposer, wire bonded to both the sensor and the at least one external wall, is an improved approach to electrically connecting a sensor and a sensor package. The interposer allows for short wire bonds from the sensor and the at least one external wall to the interposer, replacing the single, long wire bond from the sensor to the at least one external wall in the prior art. This provides improved resilience of the sensor package under high stress. Furthermore, it allows an existing sensor and package combination to be improved without needing to redesign either component.

A pressure switch includes a diaphragm sensing element disposed within a chamber to sealingly separate switching components from a passage. The diaphragm sensing element includes a convolution section that controls movement of a deflection section between neutral and pressurized positions. The pressure switch includes a reverse stop for limiting travel of the deflection section when exposed to negative pressure. A stationary seal element may be disposed at the reverse stop to further limit exposure of the convolution section of the diaphragm sensing element to negative pressure.

A pressure sensor comprises a housing, a flexible membrane which, together with the housing, forms a hermetically closed cavity, a sensor element arranged in the cavity, and a gaseous medium in the cavity.

The invention includes differential pressure transducer assembly systems and methods in which headers are configured with header pins that extend perpendicular with respect to an axis of the assembly and through header sidewalls, enabling a compact configuration, ease of assembly, enhanced reliability and/or redundancy. Channels and ports defined in a housing portion of the assembly are configured to enable the use of substantially straight tubing sections for routing main and/or reference pressures to one or more differential sensing elements mounted on the headers. Two or more headers with associated sensing elements can be stacked to provide redundant differential pressure sensing.

In a pressure sensor, a cap-shaped shielding member (17) to block an electric field undesirable for a signal processing electronic circuit unit of a sensor chip (16) is supported by an end surface of a disk conductive plate (19) between one end surface of the sensor chip (16) in a liquid sealing chamber (13) and a diaphragm (32). The conductive plate (19) is electrically connected via a group of input-output terminals (40ai) and bonding wires (Wi), for example, and the sensor chip (16) is supported by one end portion of a chip mounting member (18) which is electrically connected via the group of input and output terminals (40ai) and the bonding wires (Wi).

The present disclosure relates to a method for producing a pressure transmitter system, comprising the steps: providing a protective hose, a capillary tube and a pressure transmitter, which consists of a membrane support body and a filling adapter body that has a filling closure; arranging the capillary tube and a capillary interface of the capillary adapter relative to one another; integrally welding the capillary tube to the capillary adapter; and placing the protective hose onto a protective hose mounting of said capillary adapter.

A metallic base member includes a holding section and a first flange. A sensor chip on which sensor element is arranged is provided on the holding section. An insulating adjusting member is provided on the holding section around the sensor chip and a circumference thereof is positioned between a circumference of the holding section and a circumference of the first flange. A metallic housing includes an opening section and a second flange, an inner surface of the opening section is brought into contact with the circumference of the adjusting member, and the second flange is joined to the first flange.

A diaphragm seal includes a first diaphragm that faces a measurement medium, a sealed-liquid housing, and a second diaphragm. The first diaphragm receives pressure from the measurement medium. The sealed-liquid housing houses a sealed liquid for transferring the pressure to a transmitter. The second diaphragm causes hydrogen intruded into the sealed liquid to permeate through the second diaphragm and be discharged from the sealed liquid.