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公开(公告)号：US10781939B2
公开(公告)日：2020-09-22
申请号：US15322791
申请日：2015-07-02
Applicant: Nanotech Analysis S.R.L.
Inventor： Gianpiero Mensa , Raffaele Correale
Abstract: Disclosed are devices, systems and methods for gas sampling, for controlling and measuring a gaseous flow, and for controlling a pressure gradient. An exemplary device 1 for controlling a gaseous flow comprises a gaseous flow adjusting interface 2, configured to inhibit or allow a flow of gas through the device 1 in a controlled manner, and control means 3, 4 of the adjusting interface. The adjusting interface 2 comprises a plurality of nano-holes 20. Each of the nano-holes has sub-micrometric dimensions and is suitable to be opened or closed in a controlled manner. The control means 3,4, in turn, comprise actuating means 3, suitable to open or close these nano-holes, and electronic processing means 4, configured to activate the actuation means to open or close individually or collectively the nano-holes 20 in a controlled manner.
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公开(公告)号：US10697944B2
公开(公告)日：2020-06-30
申请号：US15323765
申请日：2015-07-02
Applicant: NANOTECH ANALYSIS S.R.L.
Inventor： Gianpiero Mensa , Raffaele Correale
Abstract: A portable system 1 for analyzing gaseous flows that vary over time is described, the system comprising a sampling chamber 18, a gas sampling module 7, an ion filtering module 8 and an ion detecting module 9. The gas sampling module 7 is configured to adjust an input gaseous flow Fi of gas particles from the sampling chamber 18, ionize said gas particles and to emit the produced ions, so as to generate an ion flow I. The ion filtering module 8 is configured to controllably select at least one type of ion present in the ion flow I and to generate a corresponding at least one homogeneous ion beam I′, having an intensity representative of the concentration of the corresponding gas particle in the gaseous composition to be analyzed. The ion detecting module 9 is configured to measure the intensity of the at least one ion beam I′.
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公开(公告)号：US10229809B2
公开(公告)日：2019-03-12
申请号：US15322623
申请日：2015-07-02
Applicant: NANOTECH ANALYSIS S.R.L.
Inventor： Gianpiero Mensa , Raffaele Correale
Abstract: A device 1 for generating a controlled ionic flow I is described. The device 1 is portable and comprises an ionization chamber 6, at least one inlet member 2 and at least one ion outlet member 3. The ionization chamber 6 is suitable to be kept at a vacuum pressure, and configured to ionize gaseous particles contained therein. The at least one inlet member 2 is configured to inhibit or allow and/or adjust an inlet in the ionization chamber of a gaseous flow Fi of said gaseous particles. In addition, the at least one inlet member 2 comprises a gaseous flow adjusting interface 22, having a plurality of nano-holes 20, of sub-micrometric dimensions, suitable to be opened or closed, in a controlled manner, to inhibit or allow a respective plurality of gas micro-flows through the at least one inlet member 2.
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