A Fringing Field Based Screen-Printed Flexible Capacitive Moisture and Water Level Sensor

被引：0

作者：

Malik, Shahid ^{[1
]}

Somappa, Laxmeesha ^{[1
]}

Ahmad, Meraj ^{[1
]}

Sonkusale, Sameer ^{[2
]}

Baghini, Maryam Shojaei ^{[1
]}

机构：

[1] Indian Inst Technol, Elect Engn Dept, Mumbai, Maharashtra, India

[2] Tufts Univ, Dept Elect & Comp Engn, Medford, MA 02155 USA

来源：

2020 IEEE INTERNATIONAL CONFERENCE ON FLEXIBLE AND PRINTABLE SENSORS AND SYSTEMS (IEEE FLEPS 2020) | 2020年

关键词：

Fringing field; capacitive sensor; carbon paste; moisture sensor; water-level sensor;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple, low cost, screen-printed flexible capacitive sensor for moisture, and water level detection is presented in this paper. The sensor is fabricated on the flexible polyamide substrate. The interdigitated structure electrodes are screen printed on the substrate to form the capacitive fingers using carbon paste. The relative permittivity of the medium changes due to the water vapors on the sensor, which in turn changes the capacitance of the sensor due to the fringing field. A novel auto-nulling based signal conditioning circuit was utilized to measure the capacitance of the sensor. The flexible nature of the sensor enhances the use of the fabricated capacitive sensor in applications such as diaper wetness monitoring, soil moisture monitoring, body hydration monitoring.

引用

页数：4

共 42 条

[31] Non-Destructive Thin Film Thickness Measurement based on Coplanar Capacitive Sensor and Printed Circuit Board Platform [J].

Dac, Hai Nguyen ;

Anh, Dung Nguyen ;

Quoc, Tuan Vu ;

Tham, Do Quang ;

Manh, Kha Hoang ;

Duc, Trinh Chu .

IETE JOURNAL OF RESEARCH, 2024, 70 (08) :7014-7024

[32] A capacitive DNA sensor-based test for simple and sensitive analysis of antibiotic resistance in field setting [J].

Liu, Yanling ;

Hedstrom, Martin ;

Chen, Dongfeng ;

Fan, Xiaolong ;

Mattiasson, Bo .

BIOSENSORS & BIOELECTRONICS, 2015, 64 :255-259

[33] Highly porous and flexible capacitive humidity sensor based on self-assembled graphene oxide sheets on a paper substrate [J].

Alrammouz, R. ;

Podlecki, J. ;

Vena, A. ;

Garcia, R. ;

Abboud, P. ;

Habchi, R. ;

Sorli, B. .

SENSORS AND ACTUATORS B-CHEMICAL, 2019, 298

[34] Application of Electric Double Layer Capacitor and Water Level Sensor to Rice Field Monitoring System [J].

Fukushima, Yukito ;

Fukuma, Masumi ;

Hirose, Makoto ;

Sugiyama, Ko-ichiro ;

Kawami, Masaharu ;

Yoshino, Katsumi ;

Kishida, Satoru ;

Lee, Sang-Seok .

2018 IEEE SENSORS, 2018, :381-384

[35] Wireless Capacitive Liquid-Level Detection Sensor Based on Zero-Power RFID-Sensing Architecture [J].

Ahmad, Shaheen ;

Khosravi, Ramin ;

Iyer, Ashwin K. ;

Mirzavand, Rashid .

SENSORS, 2023, 23 (01)

[36] Passive Particle Jamming Variable Stiffness Material-Based Flexible Capacitive Stress Sensor with High Sensitivity and Large Measurement Limit [J].

Zhang, Dongguang ;

Wang, Xinxin ;

Wu, Yali ;

Song, Honglie ;

Ma, Zhen ;

Zhang, Xunying ;

Yang, Xiaofeng ;

Xing, Ruizhe ;

Li, Yang ;

Yang, Jiayi .

ADVANCED MATERIALS TECHNOLOGIES, 2021, 6 (08)

[37] A novel sol-gel thin film porous alumina based capacitive sensor for measuring trace moisture in the range of 2.5-25 ppm [J].

Islam, Tarikul ;

Kumar, Lokesh ;

Khan, Shakeb A. .

SENSORS AND ACTUATORS B-CHEMICAL, 2012, 173 :377-384

[38] Self-Temperature Compensated Water Level and Velocity Sensor Based on Fiber Bragg Gratings [J].

Fernandes, Diego ;

de Goes, Rafael Eleodoro ;

Tonso Fabiani, Andre Luiz ;

Barreto, Rafael Carvalho ;

Kamikawachi, Ricardo Canute .

IEEE SENSORS JOURNAL, 2022, 22 (16) :16008-16015

[39] Novel multiplex capacitive sensor based on molecularly imprinted polymers: A promising tool for tracing specific amphetamine synthesis markers in sewage water [J].

De Rycke, Esther ;

Leman, Olivier ;

Dubruel, Peter ;

Hedstrom, Martin ;

Volker, Matthias ;

Beloglazova, Natalia ;

De Saeger, Sarah .

BIOSENSORS & BIOELECTRONICS, 2021, 178

[40] Highly Sensitive Detection of Pb2+ in Water Using Phase Shift-Based Capacitive Sensor Immobilized With Graphene Oxide [J].

Suryana, Nacep ;

Dzulfiqar, Fatih ;

Sumartono, Hari ;

Al Huda, Mahfudz ;

Purwandari, Vivi ;

Aprilia, Lia ;

Yuliarto, Brian ;

Nuryadi, Ratno .

IEEE SENSORS JOURNAL, 2025, 25 (11) :20593-20601

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