7 results about "Gas analyser" patented technology

A gas analyser comprises a sensor 50 comprising a measuring chamber 30 which takes up a gas sample Gp and generates a signal which correlates with target gas concentration. A filter component 20 comp

The application discloses a livestock and poultry farm gas monitoring system based on multi-point arrangement and relates to the technical field of livestock house gas monitoring.The system comprises an edge computing gateway, which identifies airflow stagnation dead angles and dispatches a track moving calibration robot to arrive above a target fixed sensing node according to the running state of a mechanical environmental control system through a reduced-order flow field proxy model; the robot constructs a local isolation zone and applies air pressure drop by using a concentric double-diffuser assembly, thereby triggering node wake-up; then, by means of a micro-heating assembly, a bypass pressure limiting valve and a pneumatic ultrasonic wave, low-damage peeling and residual gas extraction are implemented on the scabbed air-permeable membrane; subsequently, isogenic backfilling air masses are formed by maintaining outer ring diffuser gas supply, and a reference gas analyzer synchronously samples and updates drift compensation parameters or outputs replacement instructions with the target fixed sensing node; and the application can realize non-contact cleaning, in-situ calibration and long-term continuous recovery of the fixed sensing node in a strong turbulent livestock and poultry house environment.

The utility model discloses a built-in soil respiration monitoring system capable of multi-point joint synchronous measurement, which comprises an air chamber, a hemispherical structure is adopted, a light source module, a detection module and a temperature, humidity and pressure sensor are integrated in the air chamber, the light source module emits infrared light with fixed intensity, and the detection module receives a light intensity signal and calculates a CO2 concentration value in a closed space of the air chamber; the top end of the sealing soil ring is tightly attached to the bottom end of the air chamber through a rubber sealing gasket to form a closed space; the ventilation balance valve is used for maintaining air pressure balance inside and outside the air chamber; the driving shaft is connected with the motor and the air chamber support to control opening and closing of the air chamber, and the driven shafts are symmetrically distributed below the driving shaft to stabilize the motion trail. The built-in structure of the CO2 gas analyzer is adopted, measurement can be directly carried out in the gas chamber, an external gas path pipeline is not needed, gas transmission delay can be reduced, and response time can be shortened; the soil respiration monitoring system has the advantages that the soil respiration monitoring system is simple in structure and free of external environment interference, multi-point joint networking synchronous observation within a visual distance of about 10km is realized based on the LoRa central data acquisition controller, and meanwhile, the soil respiration monitoring system is applicable to various complex ecological systems by adopting a firm and durable shell, so that technical support is provided for climate change research.

1. The name of the design product: gas analyzer (portable). 2. The use of the design product: for gas analysis and detection. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

A residual gas analyser (40) for analysis of a residual gas (30), in particular a residual gas in an EUV lithography system (1), includes an inlet system (41) for admission of the residual gas from a vacuum environment (27a) into the residual gas analyser, and a mass analyser (43) having a detector (44) for detecting ionized constituents (30a) of the residual gas. The residual gas analyser includes an ion transfer device (42) for transferring the ionized constituents of the residual gas to the mass analyser, the ion transfer device having an ion filtering device (45) configured for filtering at least one ionic constituent (30a) of the residual gas. Also disclosed is an EUV lithography system, in particular an EUV lithography apparatus, which includes at least one residual gas analyser configured as indicated above for analysing a residual gas in a vacuum environment of the EUV lithography system.

The utility model discloses an analysis device which comprises a sample gas inlet, a gas storage tank, a sucking pump, a gas analyzer and a gas outlet, an inlet of the gas storage tank is communicated with the sample gas inlet, and the gas storage tank is used for storing sample gas output by the sample gas inlet; one end of the sucking pump is communicated with an outlet of the gas storage tank; the inlet end of the gas analyzer is communicated with the other end of the sucking pump, and the gas analyzer is used for analyzing the sample gas output by the sucking pump; and the gas outlet is communicated with the outlet end of the gas analyzer. The problem that a small-gas-yield PEM water electrolysis hydrogen production test platform cannot directly measure gas components is solved.

A method measures airborne molecular contamination via a measuring station including at least one first and one second gas analysers, at least one sampling line, and at least one valve. The method includes measuring molecular contamination concentrations in the sampling line by the first gas analyser for a first predefined time, fluidic isolation between the first gas analyser and the sampling line via at least one valve, and measuring molecular contamination concentrations in the sampling line by the second gas analyser for a second predefined time.