A method and a sensor for detecting or measuring at least one specific component among a plurality of components present in a gaseous or liquid mixture by a sensor having at least one capturing cell with a high-electron mobility transistor including a source and a drain with a grid inserted between the source and the drain, a voltage being applied between the source and the drain, and a current intensity in the capturing cell being recorded. The voltage between the source and the drain is controlled, which varies the intensity of the current, the voltage being controlled according to a voltage model predetermined by experience in order to provide a profile with an intensity which is characteristic of said at least one specific component.

Provided is sensor built-in filter structure arranged in a wafer accommodation container, comprising: a first filter; a second filter arranged closer to a wafer accommodation chamber of the wafer accommodation container than to the first filter; and a gas detection sensor arranged between the first filter and the second filter to detect a state of a gas.

A system of gas multiple measurement having independent channels, wherein the gas measurement is carried out by a system comprising individual or redundant sensors configured to take contemporaneous double redundancy measures, such as contemporaneous measurement of flammable and/or toxic gases, with detection of various gases which, when present in the air and not detected, may cause the formation of explosive and/or toxic mixtures.

Methods and systems for identifying contamination of an electrochemical sensor (10) and cleaning the electrochemical sensor (10) are provided. A method may comprise scanning the sensor (10) for the first time using CV to generate a reference set of readings; scanning the sensor (10) for the second time after the sensor (10) has been employed; comparing a second set of readings from the second CV scan to the reference set of readings; when the second set of readings is different from the reference set of readings, determining that the sensor (10) potential has shifted; scanning the sensor (10) for the third time to clean one or more elements of the sensor (10); scanning the sensor (10) for the fourth time; comparing a fourth set of readings from the fourth CV scan to the second set of readings; and determining that the potential of the sensor (10) has shifted due to pollution of the sensor (10), and/or that the sensor (10) can be further cleaned.

A portable chemical contaminant detection system and related method is provided. The detection system includes a detector having one or more probes and associated detector circuitry that is in communication with a mobile device. The system is in communication with a remotely located server, where the detection system transmits contaminant detection signals while measuring a fluid from a product or a container of a chemical used on the product. The contaminant detection signals are transmitted in real-time and the detection system receives contaminant level information determined by the server. The server may process data from multiple probes to track multiple contaminants or a single contaminant based on the multiple different probe data from a single detector. The system displays real-time decontamination feedback and displays process completion notification or automatically implements decontamination shut-off. The server tracks location information and contaminant levels for products and communicates with third party certification servers.

A gas sensor (2) distinguishes between a target gas and a contaminant and includes a light source (8), a measurement volume (4), a detector (22), and an adaptable filter system (20) with a first optical filter and a second optical filter. The filter system switches between a first composite state, with both filters in a reference state, a second composite state, with the first filter in a first reference state and the second filter in a second measurement state, a third composite state with the first filter in a first measurement state and the second filter in a second reference state, and a fourth composite state, with both filters in a measurement state. The gas sensor detects a target gas and makes a determination as to a presence of the contaminant by comparing the respective detector signals, generated during at least three of the composite states, with each other.

A detecting apparatus includes a detecting carrier and a detecting device. The detecting carrier can be moved into a charging frame or anyone of storing frames of a stock room. The detecting device is installed in the detecting carrier and includes a power module and a detecting module. The detecting module is configured to detect environment information corresponding in position to the detecting carrier. The power module is configured to supply power for operating the detecting apparatus. When the detecting carrier is arranged in the charging frame, the power module is spaced away from the charging frame and is charged without contacting the charging frame.

A detecting apparatus includes a detecting carrier and a detecting device. The detecting carrier can be moved into a charging frame or anyone of storing frames of a stock room. The detecting device is installed in the detecting carrier and includes a power module and a detector for volatile organic compounds (VOC). The power module is configured to supply power for operating the detecting apparatus. The detector includes a chassis, a displacement unit disposed in the chassis, a detecting unit disposed on the displacement unit, and a blowing unit disposed on the chassis. The detecting unit is configured to detect a concentration of VOC corresponding in position to the detecting carrier. The detecting unit can be arranged inside or outside the chassis by using the displacement unit. The blowing unit is configured to blow VOC adhered to the detecting unit.

The invention provides: a gas sensor device that is capable of removing a component adsorbed on a gas sensor by relatively simple means and easily restoring a signal baseline of the gas sensor to a constant state; and a method for removing a gas component. The gas sensor device according to an embodiment of the invention includes a gas sensor and cleaning means that contains a liquid for cleaning the gas sensor. The gas sensor includes a sensor main body that is capable of detecting a characteristic parameter of a component present in a gas phase or a liquid phase, and a sensitive membrane that is coated on a surface of the sensor main body and is durable against the liquid.

It is aimed to analyze a gas component of a to-be-analyzed gas with a reduced influence of a liquid component contained in the to-be-analyzed gas. Provided is an analyzing apparatus for analyzing a gas component of an exhaust gas that has passed through a scrubber apparatus and the like. The analyzing apparatus includes a collecting nozzle configured to collect a to-be-analyzed gas, a liquid collecting unit configured to collect a liquid component contained in the to-be-analyzed gas collected by the collecting nozzle and to allow the to-be-analyzed gas to pass therethrough, a liquid discharging unit configured to discharge the liquid component collected by the liquid collecting unit, and an analyzing unit configured to analyze a gas component of the to-be-analyzed gas that has passed through the liquid collecting unit.