TY - JOUR
T1 - Micro Quartz Tuning Fork-Based PM 2.5 Sensor for Personal Exposure Monitoring
AU - Qin, Xingcai
AU - Xian, Xiaojun
AU - Deng, Yue
AU - Wang, Di
AU - Tsow, Francis
AU - Forzani, Erica
AU - Tao, Nongjian
N1 - Funding Information:
Manuscript received November 14, 2018; accepted December 8, 2018. Date of publication December 14, 2018; date of current version March 7, 2019. This work was supported in part by the National Institutes of Health under Grant 5R01ES020358-02 and Grant 1U01EB021980-01 and in part by the Natural Science Foundation of Jiangsu Province under Grant BK20150574. The associate editor coordinating the review of this paper and approving it for publication was Dr. Qiang Wu. (Corresponding authors: Xiaojun Xian; Nongjian Tao.) X. Qin is with the School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China, and also with the Center for Bioelectronics and Biosensors, Biodesign Institute, Arizona State University, Tempe, AZ 85287 USA (e-mail: xingcai.qin@nju.edu.cn).
Publisher Copyright:
© 2001-2012 IEEE.
PY - 2019/4/1
Y1 - 2019/4/1
N2 - A portable, wireless, and cost-effective PM 2.5 sensor based on micro quartz tuning fork (MQTF) has been developed. Coated with repositionable polymer glue for effective absorption of PM 2.5 and with the help of innovative nozzle inlet, the MQTF-based sensor is highly sensitive to PM 2.5 in the detection range of 2∼ 2000μgm 3 with high stability. The sensor response, change rate of the MQTF frequency, shows linear relationship with PM 2.5 concentration from 6 to 100μgm 3 at the flowrate of 1.7 L/min, which is a typical range of PM 2.5 concentration in ambient air. By integrating the repositionable adhesive coated MQTF, driving and detection circuit, PM 2.5 filter, sampling system, and a smartphone with Bluetooth and home-developed app, the MQTF-based sensor is assembled for personal PM 2.5 exposure monitoring. Furthermore, field tests show that the PM 2.5 concentration readings from MQTF-based sensor and commercial PM monitor correlate very well with each other, which indicates the high accuracy and reliability of the MQTF-based sensor.
AB - A portable, wireless, and cost-effective PM 2.5 sensor based on micro quartz tuning fork (MQTF) has been developed. Coated with repositionable polymer glue for effective absorption of PM 2.5 and with the help of innovative nozzle inlet, the MQTF-based sensor is highly sensitive to PM 2.5 in the detection range of 2∼ 2000μgm 3 with high stability. The sensor response, change rate of the MQTF frequency, shows linear relationship with PM 2.5 concentration from 6 to 100μgm 3 at the flowrate of 1.7 L/min, which is a typical range of PM 2.5 concentration in ambient air. By integrating the repositionable adhesive coated MQTF, driving and detection circuit, PM 2.5 filter, sampling system, and a smartphone with Bluetooth and home-developed app, the MQTF-based sensor is assembled for personal PM 2.5 exposure monitoring. Furthermore, field tests show that the PM 2.5 concentration readings from MQTF-based sensor and commercial PM monitor correlate very well with each other, which indicates the high accuracy and reliability of the MQTF-based sensor.
KW - Air quality
KW - PM sensor
KW - micro quartz tuning fork
KW - particulate matter
KW - personal exposure monitor
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U2 - 10.1109/JSEN.2018.2886888
DO - 10.1109/JSEN.2018.2886888
M3 - Article
AN - SCOPUS:85058872734
SN - 1530-437X
VL - 19
SP - 2482
EP - 2489
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 7
M1 - 8576635
ER -