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Shoulder mountable real-time air quality measurement device and air quality device calibration system

A technology of air quality and measuring devices, which is applied in measuring devices, scattering characteristic measurements, standard gas analyzers, etc., and can solve problems such as sensor drift and measurement deviations

Pending Publication Date: 2021-04-23
YALE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] While low-cost sensors have great potential to provide air quality data with high spatiotemporal resolution and complement existing monitoring points, several studies have reported measurement bias due to sensor drift due to environmental variables and aging

Method used

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  • Shoulder mountable real-time air quality measurement device and air quality device calibration system
  • Shoulder mountable real-time air quality measurement device and air quality device calibration system
  • Shoulder mountable real-time air quality measurement device and air quality device calibration system

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Embodiment Construction

[0036] It should be understood that the drawings and description of the present invention have been simplified to show elements that are relevant to a clearer understanding of the invention, while at the same time many other items found in air quality measurement devices and calibration systems have been omitted for the sake of clarity. element. Those of ordinary skill in the art may recognize other elements and / or steps that are desirable and / or required in practicing the invention. However, since such elements and steps are well-known in the art, and because they are not helpful for a better understanding of the present invention, discussion of such elements and steps is not provided herein. The disclosure herein refers to all such variations and modifications of such elements and methods known to those skilled in the art.

[0037] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in ...

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Abstract

An air quality measurement device includes a housing configured to rest on a shoulder of a user. The housing includes an air inlet directed to a breathing zone of the user, and an air outlet. An air quality sensor and an air pump within the housing is connected in-line between the air inlet and the air outlet. A calibration system for an air quality measurement device includes a gas sensor, a particulate matter sensor, and calibration elements: a particulate matter zeroing element configured to calibrate the particulate matter sensor, a gas sensor zeroing element to calibrate the zero response of the gas sensor(s), and a gas sensor known concentration element to calibrate the concentration response of the gas sensor(s).

Description

[0001] Citations to related applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 719,806, filed August 20, 2018, and U.S. Provisional Patent Application No. 62 / 756,373, filed November 6, 2018, which are hereby incorporated by reference in their entirety middle. Background technique [0003] Low cost air pollutant devices are known to be highly problematic with respect to variations in their zero value, response factor, and sensitivity to relative humidity and temperature effects on the zero value or response factor. This results in less confidence in the data it is used for research or monitoring purposes, and common calibration solutions are repeated visits to the site using gas canisters or other devices to calibrate the monitor, or periodic disassembly of the device for laboratory calibration / characterization . This greatly reduces the practicality and feasibility of large distributed monitor networks for measuring pollution...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06G01N15/00G01N21/53G01N33/00
CPCG01N21/274G01N21/3504G01N21/53G01N2201/0221G01N15/0211G01N2015/0046G01N2001/2276G01N1/2273G01N1/2205G01N2001/2223G01N35/00693G01N33/0006G01N33/0009G01N33/0031
Inventor 德鲁·金特纳富利齐·雄
Owner YALE UNIV
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