Abstract: A fluid sensor includes a metal housing body, which has a box and a flanged ring circumferentially surrounding the box. A housing jacket is formed from plastic material and disposed on an exterior side of the housing body. A sealing ring, which is situated circumferentially on top of the flanged ring, subdivides the housing jacket into two sections that are insulated from each other.

Abstract: A microstructured sensor for detecting IR radiation includes: one measuring channel having a measuring diaphragm, on which a first sensitive detector surface is implemented for the absorption of a first IR radiation; and one reference channel having a reference diaphragm, on which a second sensitive detector surface is implemented for the absorption of a second IR radiation. A measuring structure, e.g., a thermopile measuring structure as a series circuit made of thermocouple pairs, is implemented between the measuring diaphragm and the reference diaphragm for measuring a temperature differential between the measuring diaphragm and the reference diaphragm. First and second thermal contacts lie alternately on the two diaphragms.

Abstract: A capacitive fill level sensor for determining a fill level of a liquid is described. Two electrodes are provided having a plastic sheathing and a capacitance measuring device for detecting the electrical capacitance between the electrodes. An estimator device is used for estimating a fill level of a liquid between the electrodes based on the detected electrical capacitance, taking into account different dielectric constants for sections of the plastic sheathing in the liquid and outside of the liquid.

Abstract: The quantitative determination of aging effects on motor oil is of great interest. According to a method, two variables of the motor oil are detected, one of the two variables being the viscosity and the other variable being the acid content of the motor oil. A first deviation of the detected first variable from a default value is then determined, and the second variable is estimated based on the deviation. By determining a second deviation of the estimated second variable from the detected second variable, the second deviation is determined as a measure of the aging effect on the motor oil. Since various aging effects influence the two variables in different manners, individual aging effects may be quantitatively determined in a targeted manner.

Abstract: A fluid sensor includes a metal housing body, which has a box and a flanged ring circumferentially surrounding the box. A housing jacket is formed from plastic material and disposed on an exterior side of the housing body. A sealing ring, which is situated circumferentially on top of the flanged ring, subdivides the housing jacket into two sections that are insulated from each other.

Abstract: A capacitive fill level sensor for determining a fill level of a liquid is described. Two electrodes are provided having a plastic sheathing and a capacitance measuring device for detecting the electrical capacitance between the electrodes. An estimator device is used for estimating a fill level of a liquid between the electrodes based on the detected electrical capacitance, taking into account different dielectric constants for sections of the plastic sheathing in the liquid and outside of the liquid.

Abstract: A measuring sensor has a hollow body through which a fluid is able to flow. Two sections of a wall of the hollow body form electrodes for a capacitive and/or a resistive measurement and the electrodes are made of a conductive plastic. The measuring sensor may be used in a fuel feed line. A method for manufacturing is also described.

Abstract: A microstructured sensor for detecting IR radiation includes: one measuring channel having a measuring diaphragm, on which a first sensitive detector surface is implemented for the absorption of a first IR radiation; and one reference channel having a reference diaphragm, on which a second sensitive detector surface is implemented for the absorption of a second IR radiation. A measuring structure, e.g., a thermopile measuring structure as a series circuit made of thermocouple pairs, is implemented between the measuring diaphragm and the reference diaphragm for measuring a temperature differential between the measuring diaphragm and the reference diaphragm. First and second thermal contacts lie alternately on the two diaphragms.

Abstract: The capacitive measuring probe has the following: two electrodes, a plastic casing which encapsulates the two electrodes, the plastic casing having at least one section made of a conductive plastic, which is electrically connected to one of the two electrodes.

Abstract: The invention relates to a method for the production of castings made of a copper alloy comprising silicon, nickel, chromium, and zirconium, and also inter-metal primary phases, wherein an ingot is drawn by means of hot forming in only one direction at a ratio of at least 4:1, wherein a casting surface of a casting produced from the drawn ingot, said surface coming into contact with a metal melt, is substantially selected perpendicular to the drawing direction of the ingot. A casting produced in this manner is characterized by high wear resistance and increased service life, particularly when used as a block of a side bank of a double strip casting system.

Abstract: The sensor device for detecting electrical properties of a fluid under high pressure has: a pressure-tight housing, whose cavity is connectable to a high pressure line via an opening, a sensor for electrical properties, which is situated in the cavity, glass feedthroughs, which electrically connect the contacts on an external surface of the housing to the sensor.

Abstract: The invention provides a fluid sensor device (1; 1?; 1?; 1?) for detecting a dielectricity constant of a fluid (30) present in a fluid line (20), comprising a housing (5; 5?; 5?; 5?); a plate capacitor device provided on the inside of the housing (5; 5?; 5?; 5?), the plate capacitor device comprising a first and a second capacitor plate (8a, 8b; 8a?, 8b?; 8a?, 8b?; 8a?, 8b?); wherein the housing (5; 5?; 5?; 5?) on the surface thereof has an arched attachment region for attaching the fluid line (20); and wherein the first and second capacitor plates (8a, 8b; 8a?, 8b?; 8a?, 8b?; 8a?, 8b?) are disposed next to the attachment region such that a fluid (30) present in the fluid line (20) attached in the attachment region is provided at least partially between the first and second capacitor plates (8a, 8b; 8a?, 8b?; 8a?, 8b?; 8a?, 8b?).

Abstract: The quantitative determination of aging effects on motor oil is of great interest. According to a method, two variables of the motor oil are detected, one of the two variables being the viscosity and the other variable being the acid content of the motor oil. A first deviation of the detected first variable from a default value is then determined, and the second variable is estimated based on the deviation. By determining a second deviation of the estimated second variable from the detected second variable, the second deviation is determined as a measure of the aging effect on the motor oil. Since various aging effects influence the two variables in different manners, individual aging effects may be quantitatively determined in a targeted manner.

Abstract: A device for controlling a ventilation system in the interior of a motor vehicle includes a gas concentration determining arrangement to determine the exterior concentration of a gas in the exterior air surrounding the vehicle and to determine the interior concentration of the same gas in the air contained in the interior of the vehicle, and an air flow control arrangement, via which the proportion of circulating air and the proportion of fresh air from the surroundings of the vehicle in the air delivered to the interior by the ventilation system are controlled as a function of the determined interior concentration or the determined exterior concentration. The gas concentration determining arrangement is represented by a single gas sensor.

Abstract: The quantitative determination of two contaminants of a fluid is carried out in the following steps: detection of permittivity ? and viscosity v of the fluid; determination of the quantity of the first contaminant 11e on the basis of a difference between detected permittivity ?? and a first preset value 10e; estimation of viscosity 12n on the basis of the quantity of the first contaminant 11e; and determination of the quantity of the second contaminant on the basis of a difference between detected viscosity v and estimated viscosity 12n.

Abstract: Disclosed is a gas measuring device which comprises compensation of disturbances and offers high accuracy of measurement immediately after being activated. Said gas measuring device is provided with a gas sensor (1) for generating a measuring signal (S1) that depends on the gas concentration and can have a spurious component while a high-pass filter (13) having an adjustable limiting frequency is mounted downstream of said gas sensor (1). The limiting frequency can be predefined according to the spurious component by means of a selection unit.

Abstract: The quantitative determination of two contaminants of a fluid is carried out in the following steps: detection of permittivity ? and viscosity v of the fluid; determination of the quantity of the first contaminant 11e on the basis of a difference between detected permittivity ?? and a first preset value 10e; estimation of viscosity 12n on the basis of the quantity of the first contaminant 11e; and determination of the quantity of the second contaminant on the basis of a difference between detected viscosity v and estimated viscosity 12n.