Abstract: A sensor discriminator for detecting a gaseous substance includes a power source, a discrimination module, a sensor simulator that simulates a metal organic framework under at least one simulation condition, a simulation circuitry electrically coupling the sensor simulator to the power source and the discrimination module, and a discriminator circuitry that electrically couples the power source and the discrimination module to a gas capture probe. The discrimination module compares a discrimination pulse and a simulation pulse from the power source after the discrimination pulse passes through a metal organic framework of the gas capture sensor and the simulation pulse passes through a simulation component of the sensor simulator. The discrimination module causes a discriminator output that includes the comparison of the discrimination pulse to the simulation pulse.

Abstract: A fluid sensor device can include a housing having an inlet and an outlet. The housing can have a fluid reservoir, a sensing assembly, a plunger, a valve, and a plurality of channels. The fluid sensor module can be used to sense constituents in a sample fluid (e.g. patient's blood or dialysate) during a treatment process, such as kidney dialysis procedures. The fluid sensor module can be connected in-line to a medical device to sense the sample fluid.

Abstract: Ultrasensitive, decoupled thermodynamic sensing platforms for the molecular-level detection of target analytes are disclosed, wherein the sensors have a heating resistor decoupled from a sensing resistor. Embodiments of the decoupled sensor comprise a metallic microheater resistor on one side of substrate, and a sensor resistor coupled to a catalyst on the other side of the substrate. A sensor array may be provided including a plurality of sensors each having a different catalyst that, when exposed to an analyte, each experience an endothermic reaction, an exothermic reaction, or no reaction. A comparison of the reaction results to data comprising previously obtained reaction results may be used to determine the presence and the identity of the analyte. Advantageously, the decoupled sensors utilize less power and provide greater sensitivity than other-known systems, and may be used to detect and identify a single molecule of an analyte.

Abstract: This disclosure presents systems, devices, and methods that use magnetometers to measure large magnetic moments with strong magnetic anisotropy. A torque magnetometer may include an actuator driven by a motor, a load cell coupled to the actuator, a rotatable spool having a platform configured to hold a sample of a superconductor material, where the rotatable spool is coupled to the load cell by a first line, a pulley, and a second line extending between the rotatable spool and a counterweight, where the second line is positioned on the pulley. Movement of the actuator may cause the rotatable spool to rotate an angle of the platform relative to a magnetic field about the rotatable spool, and the load cell is capable of measuring the tension on the first line.

Abstract: Systems and methods for extracting an analyte from a sample. The system includes at least one reaction vessel for receiving the sample and a reaction solution that are combined into a reaction mixture. Insoluble components are separated from the reaction mixture and soluble components, including a dissolved analyte are dispensed from the at least one reaction vessel. The system further includes at least one purification vessel configured to receive the soluble components from the at least one reaction vessel, separate contaminants from the soluble components, and dispense a purified dissolved analyte.

Abstract: A system for collecting tissue samples, such as meat tissues on carcasses, for example in the food industry. Also provided are methods for collecting tissue samples, and to a non-transitory computer-readable medium comprising program instructions to execute at least one step of the method for collecting tissue samples.

Abstract: The invention provides a method of verifying the health of a liquid level detection device, preferably a vibrating fork level switch, while the device remains in situ. The method includes, independently of the device, verifying if the fork tines are fully wet or fully dry. This step can be carried out by a further, independent, level measuring apparatus.

Abstract: A sensor arrangement for measuring liquid level in a tank can include a housing, a transducer, a couplant and a bracket for holding one or more sensor components in sensing communication with the tank. The bracket can be configured to hold both a tank and one or more sensors, which can include coupling one or both to another structure, such as a vehicle that utilizes the tank as a fuel source.

Abstract: A gas detection method according to an embodiment of the present technology includes heating a semiconductor sensor that includes an absorption layer that includes a metal oxide; measuring a resistance value of the semiconductor sensor in an air atmosphere in which there exists a reducing gas; and determining that the reducing gas includes a detection-target substance when the measured resistance value is larger than another resistance value in a first temperature range, and when the measured resistance value is smaller than the other resistance value in a second temperature range in which a temperature is higher than a temperature in the first temperature range, the other resistance value being a resistance value of the semiconductor sensor in an air atmosphere in which there exists no reducing gas.

Abstract: A diffusive gradients in thin films (DGT) test device for lake water, including: a floating ball and a plurality of water sampling units. A DGT detection device, a water quality detection device with a multi-parameter probe, and a water sampling device are disposed in each of the water sampling units. The water sampling device includes: a plurality of sampling bottles, each of the sampling bottles is provided with an inlet pipe and an exhaust pipe, each of the inlet pipes and exhaust pipes is provided with a one-way solenoid valve; a peristaltic pump, a water sample outlet of the peristaltic pump communicates with the inlet pipes of the plurality of sampling bottles via a multi-way connector; the exhaust pipes of the plurality of sampling bottles are connected to an exhaust manifold via a multi-way connector; a control device connected with the peristaltic pump and each of the one-way solenoid valves.

Abstract: A sensor offset voltage compensation circuit includes a programmable gain amplifier (PGA) having an input loop configured to receive the signal output by a sensor (e.g., a voltage generated a sensor resistive bridge of a pressure sensor) and an output loop configured to furnish an output signal having a voltage that is greater than the input voltage. An offset compensation voltage is applied to at least one of the input loop or the output loop of the PGA to at least substantially cancel the zero-quantity offset voltage of the sensor from the output voltage.

Abstract: This liquid surface detection device comprises: a liquid retention part in which hydrogen peroxide water is retained, the hydrogen peroxide water to be atomized by a vibrating plate in which a through-hole is provided; a float positioned inside the liquid retention part; and a sensor that detects, via the float, the arrival of the liquid surface of the hydrogen peroxide water retained in the liquid retention device at a prescribed position.

Abstract: The present disclosure relates to a chromatographic analysis system, a chromatogram detection and analysis method and an electronic device, belonging to that technical field of chromatographic analysis, wherein the system comprises a data acquiring unit, which is configured to acquire raw data generated by a chromatographic analysis instrument; an analysis processing unit, which is configured to analyze the raw data based on the analysis operation configured by a user to obtain analysis data; a storing and managing unit, which is configured to store raw data and analysis data, and store method parameters and management data of the analysis system; a client unit, which is configured to provide the interactive interface of the system to a user; wherein the storing and managing unit comprises a first database for storing raw data and analysis data and a second database for storing method parameters and management data of the analysis system.

Abstract: A modular multi-sensor fire detector including an evaluation unit having a housing, a plurality of sensor heads, and at least one adapter. At least one of the plurality of sensor heads has at least one hazard parameter conductor with a mounting tube having a proximal end, a distal end and a fastener at the proximal end. The at least one adapter is attached to the mounting tube and includes a first fastening point, a second fastening point and a third fastening point. The first fastening point for connection to the fastener on the mounting tube, the second fastening point for connection to a capping device, and the third fastening point for connection to a wall.

Abstract: Methods and apparatus for calibrating microwave reflection sensors in fluid flow measurement devices are described. A calibration apparatus has a reservoir member with a fill opening, the reservoir member defining a reservoir in an interior thereof, the fill opening being operable to fill the reservoir with a calibrant fluid; a tube coupled to a side of the reservoir member and in fluid communication with the reservoir, the tube having a first end coupled to the side of the reservoir and a second end, the tube having a length matched to an inner diameter of a pipe section of the flow measurement device to extend across the inner diameter; and a seal member disposed at the second end of the tube for scaling the second end of the tube against a sensing surface of the microwave reflection sensor installed in the pipe section of the flow measurement device.

Abstract: A multi-point air sampling system that can use a field reference subsystem to process sensor feedback to efficiently and reliably monitor and improve air quality within a space. The field reference subsystem can interface with multiple types of multi-point air sampling systems to ensure that sensors are operational and producing accurate measurements. Included within the field reference subsystem can be one or more permeation sources for generating test gases used to evaluate the integrity of the sensors, a processor for receiving the results of the test-gas evaluations to recurrently verify the operation level of each sensor, and a reporting system for carrying out actions in response to the recurrent verification of the sensors.

Abstract: A sensor assembly includes a housing and multiple sensor array segments. A first sensor array segment includes an antenna. A second sensor array segment has a soil temperature sensor, an electrical conductivity (EC) sensor, a moisture sensor, an ion-sensitive field effect transistor (ISFET) nitrate sensor for detecting nitrates in adjacent soil, an ISFET phosphate sensor for detecting phosphates in adjacent soil, an ISFET potassium sensor for detecting potassium in adjacent soil, and an ISFET pH sensor for detecting pH in adjacent soil, and a reference electrode electrically coupled to the first sensor array segment and to the second sensor array segment. The first sensor array segment and the reference electrode can be disposed on opposite sides of the second sensor array segment.

Abstract: The present disclosure relates to a bipolar plate for an electrochemical system, comprising two separator plates which are connected to one another, at least one of the separator plates having a plate body and at least one tab which is formed in one piece with the plate body and can be separated from the plate body via a predetermined breaking point. The disclosure additionally relates to a retention sample for a bipolar plate or flow plate, to a flow plate, to a system, and to a method for producing and testing a bipolar plate or flow plate.

Abstract: The system and method for a multi-element, ultra-low SWaP chemical concentrator incorporating Applicant's own open cell foamed adsorbent material which allows high volume sampling (e.g., liters per minute) to achieve low detection limits (ppt) using high-volume, low-pressure air sources (i.e. fans or blowers) rather than pumps. The device delivers the sample directly to an analyzer without the need for a typical intermediate cryogenic trapping step. In one example, a rotary style concentrator comprises four individual foam elements. Each element can be individually heated to desorb analytes.

Abstract: A method for generating an abnormal state detection model, that includes: receiving first and second normal state signals detected, for a predetermined time by first and second sensors, respectively; generating a normal state data set based on the first and the second normal state signals; recognizing first and second variable values; generating a first abnormal state signal by applying the first variable value to an impulse function and a second abnormal state signal by applying the second variable value to a Gaussian distribution function; generating an abnormal state data set based on the first and second abnormal state signals; generating a detection model learning set for generating an abnormal state detection model by combining the normal state data set and the abnormal state data set; and generating an abnormal state detection model based on the detection model learning set.