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Measuring concentrations of a target gas

A technology for measuring gas concentration and temperature, which is applied in the construction details of gas analyzers, measuring devices, and analyzing gas mixtures, etc., and can solve problems such as measurement distortion

Inactive Publication Date: 2020-04-10
SENSIRION AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although a gas sensor may be arranged in or at an electronic device for measuring the ambient concentration of a target gas to which the gas sensor is sensitive, it has been found that the electronic device itself (e.g., its housing, its circuit board or case Other parts of the body) can also release the target gas, and the part of the target gas released by the device distorts the measurement of the concentration of the target gas in the surrounding environment

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  • Measuring concentrations of a target gas
  • Measuring concentrations of a target gas
  • Measuring concentrations of a target gas

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Embodiment Construction

[0051] Throughout the figures, identical or similar elements are denoted by the same reference numerals.

[0052] figure 1 An electronic device 1 according to an embodiment of the invention is shown. The electronic device 1 is only shown schematically, not to scale, and may be embodied in many different ways. The electronic device 1 includes a casing 3 and a cavity 31 located in the casing 3 . The gas sensor 2 is arranged inside the cavity 31 , in particular with regard to mechanical protection. The temperature sensor 5 is arranged in the cavity 31 , for example next to the gas sensor 2 .

[0053] A processing unit 4 is included in the electronic device 1 and receives measurements in the form of signals from the gas sensor 2 and the temperature sensor 5 . On the other hand, the processing unit 4 can control the gas sensor 2, and possibly the temperature sensor 5, for example, by triggering the measurement of the gas sensor 2, including, in one embodiment, activating the he...

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Abstract

An electronic device (1) comprises a gas sensor (2) sensitive to a target gas and arranged inside a housing of the electronic device (1) or attached thereto, to detect a concentration (camb) of the target gas in an environment of the electronic device (1). A processing unit (4) is provided and configured to determine a concentration of the target gas (cB) outgassed from one or more components of the housing (3) or inside the housing (3) dependent on one or more first measurement results (R1,2) supplied by the gas sensor (2) in response to one or more first measurements (PM), and to determine the environmental target gas concentration (camb) dependent on the determined outgassed target gas concentration (cB) and dependent on a second measurement result (ROM) supplied by the gas sensor (2) in response to a second measurement (OM). Outgassing is understood as the release of chemical substances from the one or more components.

Description

technical field [0001] The invention relates to an electronic device and a method for determining the concentration of a target gas in the environment of the electronic device. Background technique [0002] Today, gas sensors may be mounted in or mounted to electronic equipment, the latter usually comprising a printed circuit board and / or housing. [0003] Although a gas sensor may be arranged in or at an electronic device for measuring the ambient concentration of a target gas to which the gas sensor is sensitive, it has been found that the electronic device itself (e.g., its housing, its circuit board or case Other parts of the body) can also release the target gas, and the part of the target gas released by the device distorts the measurement of the concentration of the target gas in the surrounding environment. [0004] Patent application US2017 / 184558A1 discloses a method for operating a test station of a portable gas measuring device. The gas measurement device is ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0009G01N33/0047H04M2250/12G01N27/04G01N27/403G01N33/0016
Inventor M·科勒F·赫内
Owner SENSIRION AG