A gas analysis device which is capable of analyzing a gas generated from a secondary battery at high resolution in real time. The gas analysis device comprises a diffusion chamber unit, a plurality of gas analysis units, an injector unit selectively injecting the gas generated from the secondary battery into one of the plurality of gas analysis units, and a control unit.

Techniques are disclosed for using synthetic jet technology as an air delivery device for sensing applications. In particular, a synthetic jet device is used to deliver a controlled airflow or other fluidic flow to a sensor measurement area. Such a sensing system can be used to detect accurate concentration of target features present in the ambient surroundings, such as gases, particles, solutions, mixtures, and any other environmental features that can be sensed from a controlled airflow. An example application is air quality monitoring by using one or more synthetic jet devices to deliver a known or otherwise controlled airflow to a sensing area, thereby allowing for detection of harmful or otherwise unacceptable concentrations of particulate matter, gases, or air pollutants. In some embodiments, a synthetic jet device is operatively coupled with a sensor via a flow channel in a common housing, so as to provide a controlled flow sensing system.

A non-contacting aerodynamic jet tool for collecting particles and vapors associated with surfaces. Opposing planar jets or planar jet arrays are used to liberate material from surfaces so that resuspended particulate matter and vapors can be collected for analysis. In operation, high-speed valves are triggered to create waveforms of high velocity pressurized planar jet bursts. The wall jets that traverse the surfaces exhibit unexpectedly high wall surface stress with velocity spikes characteristic of a chain of shock waves. Unlike axisymmetric jets, the wall jet tool flows over the target surface for a greater distance with wall shear stress having sufficient momentum to dislodge particles submerged in the boundary layer, dramatically improving sampling efficiency by lifting the particles and vapors from the boundary layer into a sampling intake for downstream analysis.

A sample container, sampling system and operating methods permit representative sampling from a liquid phase or boiling liquid, a gaseous phase, a containment sump, containment atmosphere, or condensation chamber of a nuclear power plant following a severe accident. A sample container obtaining an environmental sample includes an outer chamber surrounded by an outer container wall, being directly fluidically connected to the environment through a passage opening in the outer container wall and being fillable with a liquid at least in a base region. An inner chamber surrounded by an inner container wall is fluidically connected to the base region through a passage opening in the inner container wall, has connections for sampling and conveyor medium lines and is otherwise pressure and media tightly sealed from the environment. A pneumatically or hydraulically actuatable closure device for the passage opening between the outer and inner chambers has an actuation medium line connection.

An emission monitoring system for a venting system of a nuclear power plant is configured for low consumption of energy and high reliability. The emission monitoring system has a pressure relief line connected to a containment and contains a high-pressure section, a low-pressure section, and a sampling line. The sampling line opens into the low-pressure section of the pressure relief line and is guided from there to a functional path and through the sampling line steam flows. A jet pump containing a pump fluid connector, a suction connector and an outlet connector is provided. A pump fluid feed line has an inlet side opening into the high-pressure section of the pressure relief line and is guided from there to the jet pump and connected to the pump fluid connector. A sample return line is guided from the functional path to the jet pump and connected to the suction connector.

The invention discloses a gas autosampler comprising a propeller, a transmission device, a sample chain and a sample feeding cone. As the injector of the present invention is directly used as a sample feeding bottle, the transfer times can be reduced and the pollution possibility can be reduced. Meanwhile, the sample chain can increase and reduce the position number according to the requirements, and the motor controlling can feed the samples for multiple times, so that the samples can be automatically fed.

The present invention relates to the field of biological sample testing technology, and in particular, to a biological sample reaction vessel. A reagent storage portion and a push rod movable relative to the reagent storage portion are packaged in the reaction vessel; the reagent storage portion comprises at least one reagent containing cavity, and the reagent containing cavity is sealed by a sealing element; and the push rod is connected to the sealing element, and the push rod is used for cooperation with an external device to separate the sealing element from the reagent storage portion. In this application, the reagent storage portion and the push rod are both packaged in the biological sample reaction vessel, and in reaction, the biological sample reaction vessel only needs to cooperate with a test cassette. With one operation, that is, inserting the biological sample reaction vessel into the external device, the reagent in the reagent storage portion can be released rapidly.

Devices and methods for collecting trace amounts of samples are provided. A device can utilize a sterile syringe integrated with a venturi-type vacuum source for sample collection. The device can be used in a variety of applications for collecting specimens that are otherwise difficult to retrieve using conventional sample collecting techniques.

A gas collection device is installed in a toilet including a toilet seat and a toilet bowl. The gas collection device includes a flow path connected to a predetermined tank, and an introduction portion that introduces a sample gas into the flow path. The introduction portion is located between the toilet seat and the toilet bowl, or located inside or above the toilet seat. The introduction portion does not protrude toward an inside of the toilet bowl from a rim portion of the toilet bowl when located between the toilet seat and the rim portion. The introduction portion does not protrude toward the inside of the toilet bowl from the toilet seat when located inside or above the toilet seat.

A sampler including an ejector and a sample channel extending to the ejector, which are placeable in a mixture of particles of a solid and a medium, the medium being a gas and/or a liquid. The ejector includes at least one inlet and an outlet. The ejector takes a mixture sample by using vacuum via the inlet and discharges it via the outlet so as to make the mixture sample flow from the inlet towards the outlet. The sample channel takes a desired measuring sample from the mixture sample flowing in the ejector, the solid particles and the medium being at least partly separable from one another in the ejector on the basis of the flow and inertia in the mixture sample.