Abstract: A replaceable alcohol sensor module for use with a breathalyzer. The alcohol sensor module requiring calibration can be removed from the body of the breathalyzer and replaced with a new alcohol sensor module. The alcohol sensor module has at least an alcohol sensor and a circuitry mounted on a PCB that removable connects the replaceable alcohol sensor module to the breathalyzer. The circuitry transmits the signal and/or electrical current generated by the alcohol sensor to a processing unit of the breathalyzer for processing.

Abstract: A sampling assembly, including a sampling needle, a first pipeline, a second pipeline, a driving member, a first switching member, and a second switching member, is disclosed. The first pipeline is connected between the sampling needle and the first switching member. The second pipeline is connected between the first switching member and the driving member. The first switching member is used for connecting or disconnecting the first pipeline and the second pipeline. The second pipeline is connected, by means of the second switching member, to a negative pressure source. The sampling time of the sampling assembly of the present disclosure is relatively short. The present disclosure further discloses a sample analyzer and a sampling method.

Abstract: The invention relates to a sample collection system for collecting sub-samples from a material stream, the system including a valve arrangement and a static cone splitter, and wherein the valve arrangement is arranged to enable operation of the static cone splitter to collect a non-biased sample of the material stream fed to the static cone splitter under first and second operational conditions, the first operational condition requiring the material stream to be at substantially atmospheric pressure and flowing at a minimum functional flow rate, and the second operational condition requiring the material stream to be pressurised above atmospheric pressure and at a flow rate higher than the minimum functional flow rate. The invention also relates to a static cone splitter for use with the system, together with a cone member for use with the static cone splitter.

Abstract: Systems, devices, and methods for detecting contamination (e.g., bacteria) in fluid are provided. The systems, devices, and methods allow for filtering a fluid sample using a filter to capture and concentrate cells (e.g., bacteria) to detect electrochemical properties thereof. The cells can be exposed to a reagent that diffuses into the cells to produce a product of interest that can be used in analysis of the fluid sample. The product of interest can diffuse out of the filter into a fluid storage component for detection and analysis by an analysis component. After the sampling is completed, the filter can be detached and discarded. Other aspects of the present disclosure, including enhancements and various systems and methods for concentrating cells and analyzing the same, are also provided.

Abstract: A method of monitoring at least first and second inertial measurement units, the first inertial measurement unit and the second inertial measurement unit being connected to the same electronic processor circuit and being arranged to determine both a specific force vector in an accelerometer measurement reference frame and also rotation data concerning turning of the accelerometer measurement reference frame relative to an inertial reference frame; the electronic processor circuit performs the steps of projecting the specific force vectors into an inertial reference frame by using the rotation data; comparing the two specific force vectors as projected into said reference frame with each other in order to determine a difference between them; and monitoring variation in this difference over time.

Abstract: A field apparatus (also referred to as a “biosampler”) is configured to automatically capture multiple samples of an aqueous medium (for example, water from a lake) and process same to preserve unstable analytes in the field. In this way, a set of samples from the aqueous medium can, for example, be captured at multiple points in time, processed with a biopreservative to preserve unstable analytes (for example, RNA) and then later collected for further analysis. Alternatively, multiple samples of the aqueous medium can be collected and preserved at one moment.

Abstract: A thermal desorber assembly includes a housing and a desorption heater element mounted in the housing with a sample cavity defined between the desorption heater element and an inner wall of the housing. An outlet port is defined in the housing. A flow channel connects the sample cavity in fluid communication with the outlet port for conveying analytes from the sample cavity to the outlet port for introducing the analytes to a spectrometer.

Abstract: A pipette with an adjustable dosing volume comprises a housing connected to at least one seat configured to releasably hold a pipette tip. A displacement device is positioned within the housing and configured to aspirate and discharge liquid from the pipette tip. A stroke rod is coupled to the displacement element and configured to be longitudinally displaced relative to the housing to displace the displacement device. A catch sleeve is rotatably mounted within the housing and is connected to the stroke rod. An adjusting sleeve configured to engage a transducer shaft that is rotatably mounted within the housing and comprises a countershaft of a gearbox that is configured to be shifted between different shift stages. Each shift stage comprises different gear ratios between a rotational speed of the adjusting sleeve and a rotational speed of the catch sleeve. The different gear ratios enable coarse volume adjustment and fine volume adjustment.

Abstract: Provided are embodiments including a system for performing health monitoring. The system includes a measurement device configured to measure pressure of an environment, a heating element of the heater section coupled to the measurement device, a first sensing element operably coupled to a first region of the measurement device, and a second sensing element operably coupled to a second region of the measurement device. The system also includes a programmable logic that is configured to generate a status signal or flag based at least in part on conditions of the first region or the second region of the measurement device, a processing system configured to control the heating element responsive to reaching a threshold temperature, and a display configured to display a status of the first region or second region of the measurement device based at least in part on the status signal or flag.

Abstract: An air sample collection apparatus and methods for operating the air sample collection apparatus are provided. The air sample apparatus comprises a plurality of air canisters comprising at least a first canister and a second canister, a multi-position valve comprising an outlet, and an inlet region, which are fluidly connected to a plurality of ports. Each respective port is fluidly connected to a canister of the plurality of air canisters, a pump operable to provide pressurized sample air to the inlet region of the multi-position valve, and a computing device operable to open and close each respective port fluidly coupled to each canister of the plurality of canisters.

Abstract: A modular surrogate can include: a body having an external body surface with an anatomical shape, wherein the body includes an internal chamber with at least one port formed in the body extending inwardly; at least one anatomical module having an external module portion and a module stem coupled thereto, the module stem being received into a corresponding module port of the at least one port, the external module portion having an external module surface with an anatomical shape, the external body surface matches with the external module surface to provide a continuous anatomical shape; at least one sensor located in the at least one anatomical module; and at least one controller, wherein when the at least one anatomical module is coupled with the body, the at least one sensor is capable of being operably coupled with the at least one controller.

Abstract: The present invention relates to a sampler for taking samples from a molten metal bath, particularly a molten steel bath, the sampler comprising: a carrier tube having an immersion end; a sample chamber assembly arranged on the immersion end of the carrier tube, the sample chamber assembly comprising a cover plate and a housing, wherein the housing comprises an immersion end having an opening; an inflow conduit having a first end for receiving molten metal and a second end, opposite the first end, wherein the second end is in communication with the opening, wherein the opening is configured to receive the molten metal from the inflow conduit; a measuring head, wherein the sample chamber and the second end of the inflow conduit are at least partly arranged in the measuring head; and a de-oxidant material arranged along a central axis of the inflow conduit, wherein at least part of the de-oxidant material is arranged near the second end of the inflow conduit inside the measuring head, and wherein the inflow con

Abstract: A system for use in spectral analysis procedures can include a slide and a holder for carrying the slide. The slide includes a substrate forming a plurality of wells that are recessed relative to a surface of the substrate. Each of the wells forms a sample region that is recessed by a sample depth from the surface and a trough region that is recessed by a trough depth from the surface, the trough depth being greater than the sample depth. The holder includes a body defining a cavity between a first side and a second side of the body, a port for receiving the slide into the cavity, one or more first fenestrations on the first side, and one or more second fenestrations on the second side.

Abstract: An air quality sensor includes a detector element array, a processor operatively connected to the detector element array, and a memory. The memory is disposed in communication with the processor and has instructions recorded on the memory that, when read by the processor, cause the processor to execute certain operations including measuring electrical resistance of one of more detector element of the detector element array. A difference is calculated between the measured resistance and a reference resistance, and a determination is made of presence or absence of a contaminant in air communicated to the detector element array from an atmosphere of an aircraft cabin based on the difference between the measured resistance and the reference resistance. Aircraft and methods of monitoring air quality also described.

Abstract: A unique fiber core sampler composition, related systems, and techniques for designing, making, and using the same are described. The sampler is used to interface with existing field instrumentation, such as Ion Mobility Spectrometer (IMS) equipment. Desired sampler characteristics include its: stiffness/flexibility; thermal mass and conductivity; specific heat; trace substance collection/release dependability, sensitivity and repeatability; thickness; reusability; durability; stability for thermal cleaning; and the like. In one form the sampler has a glass fiber core with a thickness less than 0.3 millimeter that is coated with a polymer including one or more of: polymeric organofluorine, polyimide, polyamide, PolyBenzlmidazole (PBI), PolyDiMethylSiloxane (PDMS), sulfonated tetrafluoroethylene (PFSA) and Poly(2,6-diphenyl-p-phenylene Oxide) (PPPO).

Abstract: Systems and method determine a fluid efficiency of a fluid that flows through a fluid power system. Characteristics of the fluid is monitored in real-time as the fluid flows through the fluid monitoring device that is coupled to the fluid power system as the fluid flows through the fluid power system. A fluid status is determined in real-time that is associated with fluid parameters of the fluid that is determined from the fluid parameters detected by the fluid monitoring device. The fluid status of the fluid is determined in real-time when the fluid status indicates that a corrective action is to be executed to increase a quality of the fluid and an assessment of the corrective action that is to be executed is generated based on the fluid parameters. Degradation of the components of the fluid power system increases without the corrective action being executed to the fluid.

Abstract: Disclosed are systems, methods, and devices for simulating human manual input for devices using capacitive touchscreens. In one embodiment, the system comprises a test fixture, wherein the test fixture comprises a matrix of tubes, each tube being coated with a conductive coating; and a camera located under the matrix and configured to record the capacitive touchscreen of the device under test. The system further includes a tablet to receive images from the camera and display a visual representation of the capacitive touchscreen of the device under test, wherein the tablet is configured to receive a plurality of touch events; update the visual representation of the capacitive touchscreen of the device under test in response to the plurality of touch events; and generate a simulation of touch events, the simulation representing interaction with the device under test.

Abstract: The multiple rig stress corrosion cracking testing device is a stress corrosion cracking and sulfide stress cracking testing device for engineering material specimens. The device includes a pressure and temperature autoclave chamber and also includes four testing rigs for simultaneous stress corrosion cracking testing of a circumferential notched tensile specimen, a compact tension or a double cantilever beam specimen, a cantilever bend specimen, and a center cracked plate specimen under varying experimental conditions. The specimens may be of similar or different materials.

Abstract: A liquid chromatography system includes a solvent delivery system, a sample manager including a sample delivery system in fluidic communication with the solvent delivery system, the sample delivery system configured to inject a sample from a sample-vial into a chromatographic flow stream, a liquid chromatography column located downstream from the sample delivery system, and a detector located downstream from the liquid chromatography column. The sample delivery system further includes a first needle drive including a first sample needle configured to extract the sample from the sample-vial and deliver the sample to the liquid chromatography column, and a first syringe in communication with the first sample needle configured to meter extraction of the sample from the sample-vial. The sample manager further includes a sample automation system that includes a second needle drive including a second sample needle configured to add a volume of reagent to the sample-vial.

Abstract: The invention relates to a density monitor (10) for monitoring a gas density in a gas chamber (20). The density monitor (10) comprises a measuring apparatus (12) having a first measuring device (24) and a second measuring device (28), the two measuring devices (24; 28) being coupled together. The first measuring device (24) is designed to measure a first pressure range (62) in relative terms with respect to an atmosphere, and the second measuring device (28) is configured to measure a second pressure range (64) in absolute terms. The density monitor (10) further comprises an indicator device (50), which is designed to indicate the two pressure ranges (24; 28).