NDLI: A low-cost capacitive relative humidity sensor for food moisture monitoring application

Content Provider	IEEE Xplore Digital Library
Author	Bo Wang Law, M.K. Bermak, A.
Copyright Year	2012
Description	Author affiliation: ECE Department, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR (Bo Wang; Bermak, A.) \|\| The State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macao, China (Law, M.K.)
Abstract	In this paper, a low-cost capacitive relative humidity hygrometer suitable for food moisture monitoring is presented. The variation of dielectric constant of polyimide film to relative humidity enables the sensor's functionality. A fully differential capacitance to digital converter is utilized as the hygrometer digital readout, which is immune to circuit wiring parasitic and enable the sensor's long-term stability. The humidity sensor is implemented using TSMC1P6M 0.18µm technology with thick top metal option. Simulation results indicate that an inaccuracy of +6/−5%RH can be achieved sensing from 10%RH ∼ 90%RH, with 5.4µW power consumption for sensing and 21.6mW power consumption for sensor heating.
Starting Page	95
Ending Page	99
File Size	966525
Page Count	5
File Format	PDF
ISBN	9781467326872
e-ISBN	9781467326889
DOI	10.1109/ACQED.2012.6320483
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-10
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heating CMOS integrated circuits Monitoring Substrates MOS devices
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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