Design and Evaluation of a Multidirectional Thermal Flow Sensor on Flexible Substrate
| Autor: | Dimitris Barmpakos, Ioannis Th. Famelis, Grigoris Kaltsas, Damianos Marinatos, Anastasios Moschos |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Angle of rotation
Work (thermodynamics) Materials science Article Subject Acoustics 010401 analytical chemistry 02 engineering and technology Substrate (printing) 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Pipeline transport Reliability (semiconductor) Flow velocity Control and Systems Engineering lcsh:Technology (General) Range (statistics) lcsh:T1-995 Electrical and Electronic Engineering 0210 nano-technology Instrumentation Layer (electronics) |
| Zdroj: | Journal of Sensors, Vol 2019 (2019) |
| ISSN: | 1687-7268 |
| Popis: | The development and the corresponding evaluation of a multidirectional thermal flow sensor are presented in this work. The sensor was fabricated on a flexible substrate, allowing for new applications, since it provides the possibility of installation in nonplanar surfaces such as pipelines. Furthermore, the sensing elements are not in direct contact with the fluid, which increases the device reliability, extends its application range, and allows the noncontact monitoring of fluids. This was achieved by utilizing the substrate as a protective layer between the sensing elements and the fluid under measurement. The operation principle is based on the determination of the flow-induced temperature profile variations. A dedicated experimental setup was designed and used for the device evaluation. Both flow velocity value and direction were successfully extracted, while the results were consistent with the predicted theoretical values. A single-layer back propagation neural network that correlates the sensors’ readouts to the angle of rotation was implemented, which leads to a mean absolute direction estimation error in the order of 2.7 degrees independent to the training procedure datasets. |
| Databáze: | OpenAIRE |
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