In the following, a sensor assembly is described. According to an exemplary embodiment, the sensor assembly has a housing enclosing a pressure chamber filled with a medium, the housing having a first housing part and a second housing part, the first housing part being connected to the second housing part to seal the pressure chamber in a pressure-tight manner A sensor chip is arranged in the pressure chamber, substantially surrounded by the medium, and configured to measure a pressure of the medium. The sensor assembly also includes a plurality of connection pins which are fed through the first housing part (carrier) by pressure-tight bushings and which are electrically connected to the sensor chip. The sensor assembly also has stress relieving structures which are configured to mechanically decouple the first housing part and a pressure-sensitive element of the sensor chip.

A differential MEMS pressure sensor includes a topping wafer with a top side and a bottom side, a diaphragm wafer having a top side connected to the bottom side of the topping wafer and a bottom side, and a backing wafer having a top side connected to the bottom side of the diaphragm wafer and a bottom side. The topping wafer includes a first cavity formed in the bottom side of the topping wafer. The diaphragm wafer includes a diaphragm, a second cavity formed in the bottom side of the diaphragm wafer underneath the diaphragm, an outer portion surrounding the diaphragm, and a trench formed in the top side of the diaphragm wafer and positioned in the outer portion surrounding the diaphragm.

A pressure sensor includes a base, a sensor facing the base in a height direction with a space between the sensor and the base to sense pressure applied to a sensing surface on a side opposite to the base in the height direction, a surrounding portion raised in the height direction from the base and surrounding the sensor with a groove extending around the sensor, between the surrounding portion and the sensor, a coupling portion coupling the sensor with the surrounding portion, and a beam in the groove to apply a resistance to the surrounding portion moving toward the sensor.

A pressure sensor for capturing pressures of up to 1000 bar includes a sensor assembly and a housing sleeve for accommodating the sensor assembly. Furthermore, the pressure sensor includes a membrane in mechanical connection with the housing sleeve and operative connection with the sensor assembly for transmitting a pressure. Pressure acts in an axial direction on the membrane and in a radial direction on the housing sleeve. The housing sleeve includes a constriction which locally increases an elasticity of the housing sleeve. The housing sleeve includes a reinforcement which locally reduces an elasticity of the housing sleeve. At high pressure, locally induced changes in the elasticity of the housing sleeve result in a reversible change in length of the housing sleeve, both in the radial direction and in the axial direction.

The disclosed technology is a pressure transducer with a bleed valve built into the body of the transducer for purging liquid systems. The transducer assembly includes a body, a bleed valve port defined in the body and configured to accept a bleed valve, an interface port attached to the body, an adapter attached to a portion of the interface port, a header attached to the adapter and the body, a pressure transducer mounted to the header, and an internal cavity in communication with the interface port, the pressure transducer, and the bleed valve port. The bleed valve port is configured to vent a gas from the internal cavity. A bleed valve disposed in the bleed valve port is configured to controllably vent a gas from the internal cavity.

A hermetic structure includes a hermetic body having a through-hole passing through a high pressure side and a low pressure side, the through-hole having a tapered portion whose diameter increases from the low pressure side toward the high pressure side, a conductor inserted through the through-hole, a protector component fit in the tapered portion, the protector component having a hole for inserting the conductor, and a glass member provided in the through-hole, on the low pressure side from the protector component, so as to seal the conductor.

The invention describes a pressure measuring device having a carrier (1), a base (3) which is connected to the carrier (1), and a pressure sensor (5) which is mounted on the base (3) and of which the base area is greater than a base area of the base (5), the pressure sensor (5) being protected against thermomechanical stresses by an end, which is averted from the pressure sensor (5), of the base (3) being adhesively bonded into a recess (17) in the support (1) by means of an adhesive bond (19, 23, 25).

A pressure measurement cell is disclosed including a base body, substantially cylindrical at least in sections, a measuring membrane joined to the base body in a pressure-tight manner along a perimeter joint to form a measurement chamber between the base body and the measuring membrane, and a joining material that joins the perimeter joint between the base body and the measuring membrane. The base body and/or the measuring membrane have/has a stepped recess into which the joining material is at least partially disposed, the stepped recess structured to yield a minimum distance between the base body and the measuring membrane.

A pressure sensor includes a tubular housing; a diaphragm which is joined to one end portion of the housing through a fusion zone; and a sensor element which is disposed in the housing and to which pressure received by the diaphragm is transmitted. As viewed in a section which contains the center axis of the housing, a pair of the fusion zones exist, and each of the fusion zones is formed in such an inclined manner that its distance from the center axis increases as it extends from the outer surface of the diaphragm toward the other-end-portion side of the housing.

In a pressure detection device which is provided in an intake pressure measurement apparatus, a detection space surrounded by an outer wall portion is formed in a housing, and an inner wall portion is formed integrally in the detection space such that both end portions are connected to the outer wall portion. The inner wall portion has a cylindrical shape, and a sensor storage portion is formed between the inner wall portion and the outer wall portion. In the sensor storage portion, a pressure sensor is disposed in a region with the least influence of thermal stress at a position closer to the inner wall portion than the outer wall portion.