NDLI: Novel PCB-based thermal flow sensors for air conditioning systems

Content Provider	IEEE Xplore Digital Library
Author	Glatzl, T. Cerimovic, S. Steiner, H. Talic, A. Jachimowicz, A. Sauter, T. Keplinger, F.
Copyright Year	2015
Description	Author affiliation: Inst. for Integrated Sensor Syst., Danube Univ. Krems, Wiener Neustadt, Austria (Glatzl, T.; Cerimovic, S.; Steiner, H.; Talic, A.; Jachimowicz, A.; Sauter, T.) \|\| Inst. of Sensor & Actuator Syst., Vienna Univ. of Technol., Vienna, Austria (Keplinger, F.)
Abstract	This work addresses the development, characterization, and optimization of thermal flow sensors for heating, ventilation, and air conditioning (HVAC) systems. The sensors are based on printed circuit board (PCB) technology in order to obtain flexible, robust, and cost-effective devices. The layout comprises a copper heater meander located in the center of the PCB and two additional meanders placed on either side of the heater, acting as temperature sensors. Two different operating modes were investigated. In the first mode, a constant current applied to the heater leads to flow dependent voltage across the heater which depends on the fluid temperature and saturates at higher flow velocities. In the improved second mode, the difference between the mean temperature near the heater and the mean temperature at the sensor's edge is kept constant by an electronic controller. This is a novel approach compared to the common case where the difference between heater and ambient temperature is evaluated. In the proposed quasi-constant temperature mode the heater voltage adjusted by the controller serves as an output signal. It is approximately independent of the ambient temperature and features a good sensitivity over the whole range of interest up to 10 m/s. The sensor development and optimization was supported by FEM simulations.
Sponsorship	IEEE
Starting Page	1
Ending Page	4
File Size	874551
Page Count	4
File Format	PDF
e-ISBN	9781479982035
DOI	10.1109/ICSENS.2015.7370239
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-01
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Heating Temperature sensors Voltage measurement constant temperature mode thermal flow sensor HVAC system printed circuit board technology calorimetric
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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