Title:
SYSTEMS, METHODS, AND DEVICES FOR CALIBRATING PARTICULATE MATTER SENSORS
Document Type and Number:
WIPO Patent Application WO/2017/101039
Kind Code:
A1
Abstract:
System(100) for calibrating particulate matter sensors includes a chamber(102) including a plurality of particulate matter sensors(104-1,104-2,104-3,104-N), a fan(110), a particulate matter source(108), an air cleaner(112), and a reference particulate matter sensor(106), a computing device(114) having a processor(118) and a memory(116) storing instructions which, when executed by the processor(118), cause the processor(118) to activate the particulate matter source(108) and the fan(110) until the reference concentration reaches a threshold, activate the air cleaner(112) 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(104-1,104-2,104-3,104-N) at the calibration point, and calibrate each of the plurality of particulate matter sensors(104-1,104-2,104-3,104-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.
Inventors:
CAI KEVIN (US)
WANG JUNFENG (US)
WANG JUNFENG (US)
Application Number:
PCT/CN2015/097550
Publication Date:
June 22, 2017
Filing Date:
December 16, 2015
Export Citation:
Assignee:
HONEYWELL INT INC (US)
CAI KEVIN (US)
WANG JUNFENG (US)
CAI KEVIN (US)
WANG JUNFENG (US)
International Classes:
G08B17/10
Foreign References:
| US20100315638A1 | 2010-12-16 | |||
| CN101923767A | 2010-12-22 | |||
| CN203178170U | 2013-09-04 | |||
| CN103514723A | 2014-01-15 | |||
| EP0580110A1 | 1994-01-26 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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