A pressure sensor (100) for a measuring system (10) measuring concentrations of gaseous and/or aerosol components of a gas mixture with a reaction carrier (14), with a flow channel (42). The flow channel (42) forms a reaction chamber (46) with a reactant (48), that enters into an optically detectable reaction, and with a measuring device (12) with a gas port unit (5) connecting an inlet channel (16) and an outlet channel (18) to the flow channel (42) and a gas delivery unit (28). The pressure sensor (100) measures a pressure difference of a gas mixture flowing through the gas delivery assembly unit (2) and/or the flow channel (42) of the reaction carrier (14) and has an elastic element (102), which is configured to undergo deformation as a function of the pressure difference. A measuring method, a measuring device and a reaction carrier for such a measuring system are also provided.

A process fluid pressure measurement probe includes a pressure sensor formed of a single-crystal material and mounted to a first metallic process fluid barrier and disposed for direct contact with a process fluid. The pressure sensor has an electrical characteristic that varies with process fluid pressure. A feedthrough is formed of a single-crystal material and has a plurality of conductors extending from a first end to a second end. The feedthrough is mounted to a second metallic process fluid barrier and is spaced from, but electrically coupled to, the pressure sensor. The pressure sensor and the feedthrough are mounted such that the secondary metallic process fluid barrier is isolated from process fluid by the first metallic process fluid barrier.

An aircraft air data probe contamination monitor includes at least two air data sensor probes, a first probe located on one side of the aircraft, a second probe located on an opposite side of the aircraft, each probe being operable to generate a parameter value from an airflow passing the in-flight aircraft. The monitor also includes a processor operable to compare the generated parameter value from the first probe to the generated parameter value from the second probe to determine if one of the first probe and the second probe is contaminated.

A sensor for detecting a temperature and a pressure of a fluid medium includes at least one housing, at least one temperature sensor for detecting the temperature of the fluid medium and at least one pressure sensor element for detecting the pressure of the fluid medium. An activation and/or evaluation circuit is situated in the housing. The activation and/or evaluation circuit is situated on a circuit carrier. The activation and/or evaluation circuit is connected to the temperature sensor and the pressure sensor element. The temperature sensor has at least one connecting line including a connecting section for connecting to the activation and/or evaluation circuit. The circuit carrier has one recess. The connecting section is angled toward the connecting lines. The connecting section protrudes through the recess for connecting to the activation and/or evaluation circuit.

Provided is a tire information acquisition device. A sensor unit substrate on which a sensor for acquiring tire information and a power supply unit for supplying electric power to the sensor are disposed is provided, and a heat-insulating material is disposed at at least a periphery of the power supply unit.

Pressure measurement apparatus, assemblies and methods are described. According to one aspect, a pressure sensor assembly includes a substrate, a first adhesive member adhered to the substrate, a sensor support adhered to the first adhesive member, a second adhesive member adhered to the sensor support, and a pressure sensor adhered to the second adhesive member and aligned with apertures of the substrate, first adhesive member, and second adhesive member, and the pressure sensor is configured to vary an output signal as a result of changes in pressure of a received air stream, and the output signal is indicative of the changes in pressure of the air stream.

An active brazing material for the energy-efficient production of active-brazed connections that consists of layer sequences arranged on top of one another, the layer sequences of which consist of layers arranged on top of on another, the layer sequences of which each comprise at least one layer of brazing material, wherein the layers of brazing material of each layer sequence each contain at least one component of a base active braze and, in conjunction with each other, contain all components of the base active braze, the layer sequences of which each comprise at least one first reaction layer consisting of a first reactant to which at least one second reaction layer is directly adjacent in the active brazing material and consists of a second reactant that exothermally reacts with the first reactant, wherein an enthalpy of formation of the exothermic reaction of the reactants is greater than or equal to 45 kJ/mol—in particular, greater than or equal to 50 kJ/mol.

An active brazing material for the energy-efficient production of active-brazed connections that consists of layer sequences arranged on top of one another, the layer sequences of which consist of layers arranged on top of on another, the layer sequences of which each comprise at least one layer of brazing material, wherein the layers of brazing material of each layer sequence each contain at least one component of a base active braze and, in conjunction with each other, contain all components of the base active braze, the layer sequences of which each comprise at least one first reaction layer consisting of a first reactant to which at least one second reaction layer is directly adjacent in the active brazing material and consists of a second reactant that exothermally reacts with the first reactant, wherein an enthalpy of formation of the exothermic reaction of the reactants is greater than or equal to 45 kJ/mol—in particular, greater than or equal to 50 kJ/mol.

A gauge pressure transducer assembly having anti-icing features to allow for easy drainage of fluids to prevent pooling and icing. The assembly can include a header having one or more atmospheric ports extending therethrough, a differential sensing element mounted to the header, a header cap attached to at least a portion of the header, a gauge adapter attached to the header and in communication with the one or more atmospheric ports of the header, an elongated tube attached to the header cap, and a front port attached to the elongated tube. The gauge adapter includes a plurality of through-holes to facilitate drainage and de-icing, which is an improvement over conventional transducers that can trap water within the ports that can freeze and cause damage. The header and the gauge adapter of the gauge pressure transducer assembly can reduce or eliminate regions where water can pool and freeze.

A pressure monitoring apparatus for a membrane compressor, with at least one pressure transducer for recording the pressure within a certain volume, with at least one nonreturn valve and with at least one shutoff valve, for blocking of the nonreturn valve, the shutoff valve and the nonreturn valve each being located in a flow path through which a medium can flow between the volume and the pressure transducer. A pressure monitoring unit delivers exact measured values and which can be economically implemented is achieved by there being at least two nonreturn valves which are located anti-parallel in respective flow paths, the first nonreturn valve blocking in the flow direction from the volume to the pressure transducer and the second nonreturn valve blocking in the flow direction from the pressure transducer to the volume, and by there being at least two shutoff valves for blocking a respective flow path.