The present disclosure relates to a filling body for reducing a volume of a pressure measurement chamber, which is to be filled with a pressure transmitting fluid, surrounding a pressure sensor. The filling body includes a recess for receiving the pressure sensor and has a free-standing base projecting into the recess on which the pressure sensor can be mounted. A filling body base supporting the filling body is provided on a side of the filling body facing away from the recess. The filling body can be mounted in an application location in such a way that the filling body base supports the otherwise free-standing filling body. The filling body base has a base surface that is smaller than a base surface of a filling body region that is adjacent to the filling body base and surrounding the recess.

A dual range sensor apparatus includes a single pressure transducer element coupled to respective inputs of two discrete signal conditioning modules, or to both inputs of a multiple input signal conditioning module that is configured to condition the output signal of two transducer elements. The disclosed sensor apparatus outputs a pressure signal in a limited pressure range with very high accuracy, and also provides a pressure signal in a wider pressure range with the same accuracy that can be achieved with traditional pressure sensor configurations. The sensor apparatus may provide output on a single output node in a multiplexed output signal format. The multiplexed output signal format may include several digital output formats and may be provided on a single output pin of the sensor apparatus.

Transducer assemblies may include a sensor and a housing including a pass-through portion comprising at least one aperture in a portion of the housing extending along a longitudinal axis of the housing and the sensor. Methods of forming transducer assemblies may include welding a first housing section of the transducer assembly to a second housing portion of the transducer assembly and forming at least one aperture in the first housing section extending along a longitudinal axis of the transducer assembly, along a chamber for holding a sensor, and through the weld.

A pressure sensor detects a pressure of a pressure transmitting medium. The pressure sensor includes a sensor substrate and a protection film. The sensor substrate includes a recess recessed relative to a periphery thereof and a thin portion thinner than the periphery due to the recess. The protection film is provided on a bottom surface of the recess that is one side of the thin portion and a part of a lateral surface of the recess, and the protection film suppresses an adhesion of a contamination contained in the pressure transmitting medium. The pressure sensor includes an adhesion suppressing portion that includes an uneven section formed in at least a part of the lateral surface, and a liquid repellent film repellent to liquid in the pressure transmitting medium and provided as the protection film on the uneven section to exhibit a lotus effect.

A wireless pressure sensor for sensing pressure of a liquid in a tank includes a hermetically sealed housing, at least one sensor, at least one photocell array, at least one communication device, and at least one energy storage device. At least a portion of the hermetically sealed housing has a diaphragm. The at least one sensor within the hermetically sealed housing is configured to sense the pressure of the liquid. The at least one photocell array is configured to receive light and generate power from the light. The at least one communication device is configured to transmit data corresponding to the sensed pressure using wireless radio frequency signals. The at least one energy storage device is configured to store power generated by the at least one photocell array and provide power to the at least one sensor and the at least one communication device.

Provided is a pressure detection device including: a pressure sensor including a pressure detection surface for detecting a pressure of a fluid; and a flow channel unit having a flow channel formed therein to guide the fluid to the pressure detection surface. The flow channel unit includes a flow channel body having the flow channel 21a formed therein, and an earth ring disposed in contact with the pressure sensor. The earth ring is formed of a conductive fluororesin material including a fluororesin material and a conductive material in which the fluororesin material is dispersed, and is maintained at a ground potential.

Provided is a pressure sensor that uses a sensor chip as a pressure measurement element and can suppress condensation around the sensor chip of water vapor permeating a protective member from a gas to be measured. The pressure sensor includes a pressure measurement chamber into which a gas to be measured is introduced; a sensor chip that faces the pressure measurement chamber; a sensor support that has a support surface supporting the sensor chip; and a protective member that covers the sensor chip. The pressure sensor also includes a heat insulation chamber that faces a back surface opposite to the support surface of the sensor support; and a gas passage that communicates the heat insulation chamber and the pressure measurement chamber.

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.

A pressure sensor for recording a pressure of a fluid medium in a measuring cell. The pressure sensor includes a sensor housing, at least one first pressure sensor element for measuring a pressure of the medium, and a drive and/or evaluation circuit for outputting a signal indicative of a pressure acting on the first pressure sensor element. The drive and/or evaluation circuit is configured on or in a circuit substrate disposed within the sensor housing. The first pressure sensor element is configured on or in the circuit substrate and is separated from the fluid medium by at least one first separating membrane.

A pressure sensor assembly having a remotely parameterisable, electrical threshold device is provided. A transmission unit is connected at least to a sensor element and a data bus line leading to an external connection. A monitoring unit contains the threshold device and is connected to the sensor element and an actuator for generating an output signal. A closed housing has at least the transmission unit and the overload protection unit arranged therein. The transmission unit is connected to the monitoring unit via at least one internal data bus line, which is interrupted at an electrically switchable bridge switch element. At least one parameterisation module connected to the threshold device is provided in the monitoring unit for adjusting a lower and/or an upper pressure threshold value. The parameterisation module can be connected to the transmission unit via the internal data bus line by closing the bridge switch element.