TY  - JOUR
AU  - Aleksić, Obrad
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub
AU  - Stanimirović, Zdravko I.
AU  - Stanimirović, Ivanka P.
AU  - Sibinoski, Latko Z.
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/948
AB  - A heat loss flowmeter for measuring the volume flow rate of water in real time (t) was formed using two thick film segmented thermistors, range constant voltage (RCV) power supply, acquisition card, PC, and software. The input water temperature T-w(t) was measured by a cold thermistor, while the water flow rate Q(t) was determined using the heat loss principle by measuring the self-heated thermistor current I(t). The flowmeter inertia, stability, and accuracy were measured and analyzed on a flowmeter prototype in real-time and real conditions on the water mains. The flowmeter response was measured for different durations of step input water flow-out functions and intervals between steps. An independent ultrasonic flowmeter was connected in series with the thermal flowmeter to measure the ordered input water flow functions. The realized intelligent functions in real time were: measuring the input water temperature T-w(t) and self-heating temperature T-s(t), auto-selection of RCV supply voltage U(Tw), determination and modeling of the water flow rate in real time Q(t), determination of the water volume V(t), and determination of the thermal gradient on the self-heating thermistor as a water flow indicator Delta Rs(t).
PB  - IEEE-Inst Electrical Electronics Engineers Inc, Piscataway
T2  - IEEE Sensors Journal
T1  - The Response of a Heat Loss Flowmeter in a Water Pipe Under Changing Flow Conditions
EP  - 2941
IS  - 9
SP  - 2935
VL  - 16
DO  - 10.1109/JSEN.2016.2529685
ER  - 

@article{
author = "Aleksić, Obrad and Nikolić, Maria Vesna and Luković, Miloljub and Stanimirović, Zdravko I. and Stanimirović, Ivanka P. and Sibinoski, Latko Z.",
year = "2016",
abstract = "A heat loss flowmeter for measuring the volume flow rate of water in real time (t) was formed using two thick film segmented thermistors, range constant voltage (RCV) power supply, acquisition card, PC, and software. The input water temperature T-w(t) was measured by a cold thermistor, while the water flow rate Q(t) was determined using the heat loss principle by measuring the self-heated thermistor current I(t). The flowmeter inertia, stability, and accuracy were measured and analyzed on a flowmeter prototype in real-time and real conditions on the water mains. The flowmeter response was measured for different durations of step input water flow-out functions and intervals between steps. An independent ultrasonic flowmeter was connected in series with the thermal flowmeter to measure the ordered input water flow functions. The realized intelligent functions in real time were: measuring the input water temperature T-w(t) and self-heating temperature T-s(t), auto-selection of RCV supply voltage U(Tw), determination and modeling of the water flow rate in real time Q(t), determination of the water volume V(t), and determination of the thermal gradient on the self-heating thermistor as a water flow indicator Delta Rs(t).",
publisher = "IEEE-Inst Electrical Electronics Engineers Inc, Piscataway",
journal = "IEEE Sensors Journal",
title = "The Response of a Heat Loss Flowmeter in a Water Pipe Under Changing Flow Conditions",
pages = "2941-2935",
number = "9",
volume = "16",
doi = "10.1109/JSEN.2016.2529685"
}

Aleksić, O., Nikolić, M. V., Luković, M., Stanimirović, Z. I., Stanimirović, I. P.,& Sibinoski, L. Z.. (2016). The Response of a Heat Loss Flowmeter in a Water Pipe Under Changing Flow Conditions. in IEEE Sensors Journal
IEEE-Inst Electrical Electronics Engineers Inc, Piscataway., 16(9), 2935-2941.
https://doi.org/10.1109/JSEN.2016.2529685

Aleksić O, Nikolić MV, Luković M, Stanimirović ZI, Stanimirović IP, Sibinoski LZ. The Response of a Heat Loss Flowmeter in a Water Pipe Under Changing Flow Conditions. in IEEE Sensors Journal. 2016;16(9):2935-2941.
doi:10.1109/JSEN.2016.2529685 .

Aleksić, Obrad, Nikolić, Maria Vesna, Luković, Miloljub, Stanimirović, Zdravko I., Stanimirović, Ivanka P., Sibinoski, Latko Z., "The Response of a Heat Loss Flowmeter in a Water Pipe Under Changing Flow Conditions" in IEEE Sensors Journal, 16, no. 9 (2016):2935-2941,
https://doi.org/10.1109/JSEN.2016.2529685 . .

TY  - JOUR
AU  - Aleksić, Obrad
AU  - Savić, Slavica M.
AU  - Nikolić, Maria Vesna
AU  - Sibinoski, Latko Z.
AU  - Luković, Miloljub
PY  - 2009
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/371
AB  - Purpose - The purpose of this paper is to apply negative thermal coefficient (NTC) thick film segmented thermistors (TFSTs) in a micro-flow sensor for water. Design/methodology/approach - A TFST is printed using NTC paste based on nickel manganite. The resistance of this thermistor is measured in a climatic chamber and the resulting curves are calibrated. A micro-flow sensor is designed using a self-heated segmented thermistor. The sensing principle is based on heat loss depending on the water flow intensity through the capillary. Water flow calibration is performed. The sensor sensitivity, inertia, and stability are analyzed. Findings - The micro-flow sensor exhibits good stability, suitable sensitivity and inertia for integral measurements of water flow. Practical implications - Advantages of a micro-flow sensor using a TFST include low energy consumption, simple measuring procedure, and passive electronics. Originality/value - This paper describes initial work on a micro-flow sensor for water using TFSTs.
PB  - Emerald Group Publishing Ltd, Bingley
T2  - Microelectronics International
T1  - Micro-flow sensor for water using NTC thick film segmented thermistors
EP  - 34
IS  - 3
SP  - 30
VL  - 26
DO  - 10.1108/13565360910981535
ER  - 

@article{
author = "Aleksić, Obrad and Savić, Slavica M. and Nikolić, Maria Vesna and Sibinoski, Latko Z. and Luković, Miloljub",
year = "2009",
abstract = "Purpose - The purpose of this paper is to apply negative thermal coefficient (NTC) thick film segmented thermistors (TFSTs) in a micro-flow sensor for water. Design/methodology/approach - A TFST is printed using NTC paste based on nickel manganite. The resistance of this thermistor is measured in a climatic chamber and the resulting curves are calibrated. A micro-flow sensor is designed using a self-heated segmented thermistor. The sensing principle is based on heat loss depending on the water flow intensity through the capillary. Water flow calibration is performed. The sensor sensitivity, inertia, and stability are analyzed. Findings - The micro-flow sensor exhibits good stability, suitable sensitivity and inertia for integral measurements of water flow. Practical implications - Advantages of a micro-flow sensor using a TFST include low energy consumption, simple measuring procedure, and passive electronics. Originality/value - This paper describes initial work on a micro-flow sensor for water using TFSTs.",
publisher = "Emerald Group Publishing Ltd, Bingley",
journal = "Microelectronics International",
title = "Micro-flow sensor for water using NTC thick film segmented thermistors",
pages = "34-30",
number = "3",
volume = "26",
doi = "10.1108/13565360910981535"
}

Aleksić, O., Savić, S. M., Nikolić, M. V., Sibinoski, L. Z.,& Luković, M.. (2009). Micro-flow sensor for water using NTC thick film segmented thermistors. in Microelectronics International
Emerald Group Publishing Ltd, Bingley., 26(3), 30-34.
https://doi.org/10.1108/13565360910981535

Aleksić O, Savić SM, Nikolić MV, Sibinoski LZ, Luković M. Micro-flow sensor for water using NTC thick film segmented thermistors. in Microelectronics International. 2009;26(3):30-34.
doi:10.1108/13565360910981535 .

Aleksić, Obrad, Savić, Slavica M., Nikolić, Maria Vesna, Sibinoski, Latko Z., Luković, Miloljub, "Micro-flow sensor for water using NTC thick film segmented thermistors" in Microelectronics International, 26, no. 3 (2009):30-34,
https://doi.org/10.1108/13565360910981535 . .