The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2019
Filed:
Dec. 16, 2015
Honeywell International Inc., Morris Plains, NJ (US);
Kevin Cai, Shanghai, CN;
Junfeng Wang, Shanghai, CN;
Kevin Cai, Shanghai, CN;
Junfeng Wang, Shanghai, CN;
Honeywell International Inc., Morris Plains, NJ (US);
Abstract
System () for calibrating particulate matter sensors includes a chamber () including a plurality of particulate matter sensors (----N), a fan (), a particulate matter source (), an air cleaner (), and a reference particulate matter sensor (), a computing device () having a processor () and a memory () storing instructions which, when executed by the processor (), cause the processor () to activate the particulate matter source () and the fan () until the reference concentration reaches a threshold, activate the air cleaner () responsive to the threshold being reached until the reference concentration reaches a calibration point, receive a respective determined mass concentration from each of the plurality of particulate matter sensors (----N) at the calibration point, and calibrate each of the plurality of particulate matter sensors (----N) based, at least in part, on a respective relationship between the reference concentration and each determined mass concentration at the calibration point. Methods and devices for calibrating particulate matter sensors are also described.