Abstract: An overflow detection system for a grease trap or other receptacle is provided. The overflow detection system includes an overflow sensor. The overflow sensor can include a switch and a processor. The switch can include a float configured to float in a fluid in the receptacle, a surface that is separate from the float, and a resilient member coupled between the float and the surface. The switch can generate a signal in response to the float being within a predefined distance of (e.g., contacting) the surface. The processor can receive the signal from the switch and, in response, transmit a notification to a user device that is remote from the receptacle. The notification can indicate a high fluid level in the receptacle.

Abstract: A method and arrangement for ascertaining an amount of substance emitted as a result of the operation of a functional unit of a vehicle includes transmitting signals from a signal source, which are generated independently of the amount of substance to be ascertained, as input data, to a data processing apparatus. The data processing apparatus contains at least one neural network as a trained model for processing the input data. The method includes generating output data representing the emitted amount of substance in the data processing apparatus using the at least one neural network.

Abstract: A sensor for measuring a concentration of an analysis fluid based on a thermal conductivity principle. The sensor includes at least one analysis heating element, situated on a measuring diaphragm, for heating the analysis fluid, and a reference heating element, situated on a reference diaphragm, for heating at least one reference gas. The measuring diaphragm and the reference diaphragm are adjacently situated between a sensor substrate and a cap substrate. The measuring diaphragm is situated in a measuring volume and the reference diaphragm is situated in a reference volume. The measuring diaphragm and the reference diaphragm each include at least one coating. The measuring diaphragm is opened by at least one clearance. A method for manufacturing a sensor is also described.

Abstract: An apparatus, method and system are set forth for detection of fluids using Bragg grating sensors, wherein the Bragg grating sensing element comprises an optical fiber having a Bragg grating inscribed therein characterized by optical properties that are dependent upon the periodicity and effective refractive index of the grating, and a package for subjecting the Bragg grating to a change in strain when contacted by a fluid such that periodicity and effective refractive index of the grating changes, whereby when interrogated with laser light any such change in periodicity and effective refractive index may be detected.

Abstract: A sensor mounting assembly is configured for use with a vessel arrangement including at least four vessels. The assembly includes first and second elongated frame members, first and second rollers, and first and second sensors. The first sensor is attached to the first elongated frame member and is configured to contact the surface of the first vessel upon actuation in a first direction. The second sensor is attached to the second elongated frame member and is configured to contact the surface of the second vessel upon actuation in a second direction that is substantially orthogonal to the first direction. This disclosure also describes a method of mounting at least six sensors for use with a vessel arrangement including at least four vessels, the vessel arrangement disposed in a container in a two-by-two stacked configuration having a central space.

Abstract: A modular fluid characterisation system is provided. The modular fluid characterisation system includes a sampling unit containing optional pre-processing units to condition samples, and a valve network to distribute samples to one or more characterisation modules. Each characterisation module includes one or more instruments for characterising samples, and optional additional pre-processing units. Characterising modules can be added or removed depending on operational requirements. Sample flows are controlled in accordance with an automated characterisation program, and resulting characterisation may be obtained on the basis of a combination of results from different characterisation modules with regard to the characterisation program.

Abstract: A unitary distribution plate of a Gas chromatograph (GC) module having a plurality of valve bores disposed on a bottom surface of the unitary distribution plate and a least one sensor cell and at least one column port machined into the top surface of the unitary distribution plate. The valve bores and sensor cells are connected by fluid pathways within a thickness of the distribution plate. The pathways include a combination of planar, longitudinal, diagonal, and radial fluid pathways relative to the top surface of the distribution plate. The fluid channels are formed by diffusion bonding or more generally laminating multiple plates into the unitary distribution plate.

Abstract: A vortex vibration wind tunnel test model system for a long-span bridge and a test method thereof is disclosed. In the test model system, the base is provided with a plurality of adjustment members, each of the adjustment members is provided with a cantilever rod, and all of the cantilever rods are cantilevered in the same direction; a beam body model is provided on a cantilevered end of all of the cantilever rods; a displacement measuring member is provided below the cantilever rod, and the horizontal distance between the displacement measuring member and the beam body model exceeds 2 times a width value of the beam body model, the displacement measuring member being away from the surface of the beam body model and the position of directly below the beam body model. Therefore, the state response data of the position of the cantilever rod can be collected in real time.

Abstract: A preparative chromatograph system includes a sample injector that injects a sample into a separation flow path (8) through which a mobile phase flows, a separation column that is provided on the separation flow path and is to separate a sample injected into the separation flow path into components, a detector that is provided at a position farther downstream than the separation column on the separation flow path and is to detect sample components obtained by separation in the separation column, a collector having a plurality of collection containers for collecting part of an eluate eluted from the separation column and a switch mechanism configured to be capable of selectively connecting a downstream end of the separation flow path to any one of the collection containers, a collection setter configured to set a portion, to be collected in each of the collection containers, of an eluate eluted from the separation column using a pre-acquired chromatogram of a sample, and a collection setter configured to be ca

Abstract: The proposed technical solution relates to measuring technology and is intended for measuring levels of measured medium in various branches of industry. The technical problem solved by the claimed invention is the production of a capacitive level sensor which demonstrates high operational reliability and provides highly accurate measurements. The technical result achieved by using the claimed invention consists in overcoming the disadvantages of the prior art, increasing the reliability and manufacturability of the design and thus increasing the accuracy of interface level measurements.

Abstract: A method for identifying a sample includes collecting a sample in a sample cylinder, directing the sample from the sample cylinder to a tube with controlled pressure, and identifying a phase, a color, and existence of impurities of the sample through a transparent portion of the tube.

Abstract: The exemplary embodiments may determine a temperature set point for an outlet heater or cooler based on available information without requiring user input or requiring only minimal user input. The exemplary embodiments may estimate the temperature set point of the outlet heater based on available information, such as pressure delta along the column, temperature at the inlet of the chromatography column, and volumetric flow rate. In some instances, the estimate may be normalized for column dimensions, such as length and diameter. Tailing factor may also be used in determining the estimate. The estimate is not computationally burdensome and can be recalculated as the chromatography column is in use.

Abstract: A method for operating an exhaust gas sensor in an exhaust system of an internal combustion engine of a vehicle. The exhaust gas sensor includes a ceramic sensor element having at least one measuring electrode and a heating device. A binary dewpoint end signal is calculated, based on data which relate to the internal combustion engine and the exhaust gas sensor, which indicates whether or not the occurrence of liquid water in the exhaust system is still to be expected. Whenever the vehicle is turned off and the dewpoint end signal simultaneously has the value which signals that the occurrence of liquid water in the exhaust system is still to be expected, the sensor element is heated by its heating device to a temperature for a certain period of time in such a way that the sensor element dries.

Abstract: A fluid level sensing system includes a mounting strip and fluid sensing nodes coupled to the mounting strip. Each fluid sensing node is switchable between a fluid present state and a fluid absent state. Each fluid sensing node includes a prism, a photoemitter and a photoreceptor. The photoemitter and photoreceptor are interposed between the prism and the mounting strip. In the absence of fluid around the prism, the photoreceptor receives greater than a threshold amount of light from the photoemitter internally reflected by the prism to switch the fluid sensing node to the fluid absent state. When the prism is covered in fluid, the photoreceptor receives less than the threshold amount of light from the photoemitter to switch the fluid sensing node to the fluid present state. A processor determines a fluid level based on the fluid detection states of the fluid sensing nodes.

Abstract: A built-in multi-zone fast evenly mixed sampling device of a Selective Catalytic Reduction (SCR) outlet flue is provided. The device includes: a sampling component, comprising a sampling branch pipe disposed on an outer wall of the SCR outlet flue, a sampling pool connected with the sampling branch pipe and a slanting branch pipe connected between the sampling pool and the sampling branch pipe, wherein a sampling probe is disposed on the sampling pool; a dust cleaning component, comprising a flange disposed on an upper end of the sampling branch pipe, a connecting line disposed on the flange and a suspension iron disposed on a lower end of the connecting line, wherein a lower end of the suspension iron extends out of the sampling branch pipe; and a replacement component, disposed at the sampling pool.

Abstract: A hybrid trap including a replaceable open-tubular capillary trap followed by a packed trap is used to collect, preconcentrate, and recover a sample, such as VOCs and SVOCs found in air. The capillary stage prevents losses and carryover of the heavy fraction and can also collect the particles in air that contain the heavier SVOCs, also preventing them from reaching the packed stage. The packed stage traps lighter organic compounds that are not as prone to carryover due to channeling. The capillary and packed traps together provide quantitative recovery of compounds boiling from as low as ?50° C. to as high as 600° C. The sample can be directly desorbed onto the GC column, which avoids losses and contamination caused by other approaches that thermally desorb samples through transfer lines and rotary valves more remote to the GC oven.

Abstract: A method for a multistep analysis of a measuring program of a portable gas measuring device includes performing a factory setting of the portable gas measuring device, connecting a container having a known gas standard and performing a reference measurement, wherein a multidimensional reference measurement is recorded, selecting a measuring program for target materials from a list on the device, performing a measurement on a sample in dependence on the selected measuring program, wherein a multidimensional measured variable is recorded, automatically performing an analysis to identify at least one of the one or more target materials in the sample and the respective concentrations thereof, wherein the analysis is based on the multidimensional measured variable from the measurement on the sample, the multidimensional reference measurement for the gas standard, the values for the plurality of target materials or measuring programs, and the factory setting for the portable gas measuring device.

Abstract: A method for authorizing an update of a switching threshold of a magnetic-field sensor for an internal combustion engine of a motor vehicle, in order to ensure an immunity of the sensor to external magnetic disturbances. The sensor detects magnetic-field variations induced by a passage of the teeth of a target in proximity to the sensor, by generating a magnetic signal exhibiting oscillations, certain of which may be due to magnetic disturbances and be not to be taken into account in the update by the sensor of the switching threshold, which is recomputed depending on a detected amplitude of at least two consecutive oscillations of the magnetic field. An update of the switching threshold is suspended when an oscillation frequency computed between the at least two consecutive oscillations is higher than a maximum oscillation frequency computed from a predetermined speed of rotation of the engine and from the number of teeth on the target.

Abstract: A method of automated preparation of a sample material for a chemical or compositional analysis is disclosed that includes arranging the sample material in a receptacle, storing the sample inside the receptacle in a conditioning cabinet, and grinding the sample material by way of a ball mill apparatus. The ball mill apparatus may include an extraction container, at least one grinding element provided in the extraction container and an agitator adapted to move the at least one grinding element relative to the extraction container when the sample material is placed in the extraction container. The method may further include placing the sample material together with the receptacle in the extraction container, and grinding the receptacle together with the sample material by agitating the extraction container.

Abstract: A system and method for utilizing a carbide-derived carbon (CDC) fiber in solid-phase micro extraction. Optically pumping the carbide-derived carbon (CDC) fiber, as compared to using thermal desorption, enhances performance of the system. CDC provides for a broad based sorbent that is insensitive to high humidity. Optical pumping may be done axially or radially on a modified gas chromatography needle. In some cases, staged, or pulsed, optical pumping is used to drive off solvent or other lower boiling compounds first and then the desorption of the remaining analytes is cleaner and the instrumentation is less likely to be overloaded.