NDLI: On-chip integrated silicon bulk-micromachined soil moisture sensor with electronics and bus interface

Content Provider	IEEE Xplore Digital Library
Author	Valente, A. Coute, C. Correia, J.H.
Copyright Year	2000
Description	Author affiliation: Dept. of Electr. Eng., Univ. of Tras-os-Montes e Alto Douro, Vila Real, Portugal (Valente, A.)
Abstract	This paper presents an on-chip silicon bulk-micromachined soil moisture sensor (SMS) for irrigation control in greenhouses. The system-on-a-chip includes the SMS, readout electronics, self-test, calibration facilities and a digital bus interface for external data transmission. Moreover, this low-cost device can be applied in several locations (e.g. per each plant root), and networked together with the 1-wire bus. The heat-pulse technique is used (for measuring the maximum temperature on a distant point) to determine the volumetric heat capacity and hence the water content of a porous media, such as soil. In order to validate this method, experimental results were achieved with a macrosensor based on the heat-pulse and capacitance methods. The capacitance method relates the volumetric water content with the capacitance change (dielectric properties) of a probe, inserted in the soil and water contents. These results are compared with the measurement achieved using the conventional thermogravimetric method.
Starting Page	576
Ending Page	579
File Size	528118
Page Count	4
File Format	PDF
ISBN	0780366069
DOI	10.1109/ISIE.2000.930361
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-12-04
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silicon Soil moisture Capacitance Water heating Soil measurements Irrigation Moisture control Greenhouses System-on-a-chip Readout electronics
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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