A simple thermal sensor system was designed for measuring water flow in the water mains using the heat loss principle with a NTC thick film segmented thermistor as a self-heating sensor. Thick film segmented thermistors were screen printed on alumina substrate. NTC thermistor paste was formed of very fine Cu0.2Ni0.5Zn1.0Mn1.3O4 powder obtained by a combined mechanical activation/thermal treatment process, an organic vehicle and glass frit. The thermal sensor system was analyzed in the static and dynamic regime. A range constant voltage power supply was defined in the range 9-19 V for input water temperatures of 30-2 degrees C, maintaining a supply voltage in steps of 2 V for a change in 5 degrees C of input water temperature. This enables optimal operating power, i.e. heat generation on the self-heating thermistor. Measured calibration curves for different input water temperatures and input water flow rates were modeled, enabling interpolation of additional calculated curves to cover a... wide range of input water temperatures.
Keywords:
Water flow / Thick film devices / Thermistors
Source:
Sensors and Actuators A-Physical, 2013, 201, 371-376
TY - JOUR
AU - Aleksić, Obrad
AU - Nikolić, Maria Vesna
AU - Luković, Miloljub
AU - Aleksić, Stanko O.
AU - Nikolić, Pantelija M.
PY - 2013
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/681
AB - A simple thermal sensor system was designed for measuring water flow in the water mains using the heat loss principle with a NTC thick film segmented thermistor as a self-heating sensor. Thick film segmented thermistors were screen printed on alumina substrate. NTC thermistor paste was formed of very fine Cu0.2Ni0.5Zn1.0Mn1.3O4 powder obtained by a combined mechanical activation/thermal treatment process, an organic vehicle and glass frit. The thermal sensor system was analyzed in the static and dynamic regime. A range constant voltage power supply was defined in the range 9-19 V for input water temperatures of 30-2 degrees C, maintaining a supply voltage in steps of 2 V for a change in 5 degrees C of input water temperature. This enables optimal operating power, i.e. heat generation on the self-heating thermistor. Measured calibration curves for different input water temperatures and input water flow rates were modeled, enabling interpolation of additional calculated curves to cover a wide range of input water temperatures.
PB - Elsevier Science Sa, Lausanne
T2 - Sensors and Actuators A-Physical
T1 - Analysis and optimization of a thermal sensor system for measuring water flow
EP - 376
SP - 371
VL - 201
DO - 10.1016/j.sna.2013.07.035
ER -
@article{
author = "Aleksić, Obrad and Nikolić, Maria Vesna and Luković, Miloljub and Aleksić, Stanko O. and Nikolić, Pantelija M.",
year = "2013",
abstract = "A simple thermal sensor system was designed for measuring water flow in the water mains using the heat loss principle with a NTC thick film segmented thermistor as a self-heating sensor. Thick film segmented thermistors were screen printed on alumina substrate. NTC thermistor paste was formed of very fine Cu0.2Ni0.5Zn1.0Mn1.3O4 powder obtained by a combined mechanical activation/thermal treatment process, an organic vehicle and glass frit. The thermal sensor system was analyzed in the static and dynamic regime. A range constant voltage power supply was defined in the range 9-19 V for input water temperatures of 30-2 degrees C, maintaining a supply voltage in steps of 2 V for a change in 5 degrees C of input water temperature. This enables optimal operating power, i.e. heat generation on the self-heating thermistor. Measured calibration curves for different input water temperatures and input water flow rates were modeled, enabling interpolation of additional calculated curves to cover a wide range of input water temperatures.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Sensors and Actuators A-Physical",
title = "Analysis and optimization of a thermal sensor system for measuring water flow",
pages = "376-371",
volume = "201",
doi = "10.1016/j.sna.2013.07.035"
}
Aleksić, O., Nikolić, M. V., Luković, M., Aleksić, S. O.,& Nikolić, P. M.. (2013). Analysis and optimization of a thermal sensor system for measuring water flow. in Sensors and Actuators A-Physical
Elsevier Science Sa, Lausanne., 201, 371-376.
https://doi.org/10.1016/j.sna.2013.07.035
Aleksić O, Nikolić MV, Luković M, Aleksić SO, Nikolić PM. Analysis and optimization of a thermal sensor system for measuring water flow. in Sensors and Actuators A-Physical. 2013;201:371-376.
doi:10.1016/j.sna.2013.07.035 .
Aleksić, Obrad, Nikolić, Maria Vesna, Luković, Miloljub, Aleksić, Stanko O., Nikolić, Pantelija M., "Analysis and optimization of a thermal sensor system for measuring water flow" in Sensors and Actuators A-Physical, 201 (2013):371-376,
https://doi.org/10.1016/j.sna.2013.07.035 . .
