Passive Downhole Pressure Sensor Based on Surface Acoustic Wave Technology
| Autor: | Arthur M. B. Braga, Sávio W. O. Figueiredo, Victor L. Takahashi, Sully Milena Mejia Quintero, Roberth W. A. Llerena |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Frequency response Acoustics Diaphragm (mechanical device) 02 engineering and technology lcsh:Chemical technology 01 natural sciences Biochemistry Article Analytical Chemistry Resonator downhole application lcsh:TP1-1185 pressure sensor SAW device wireless sensor Electrical and Electronic Engineering Instrumentation business.industry 010401 analytical chemistry Surface acoustic wave Linearity 021001 nanoscience & nanotechnology Pressure sensor Atomic and Molecular Physics and Optics 0104 chemical sciences 0210 nano-technology business Sensitivity (electronics) Bar (unit) |
| Zdroj: | Sensors, Vol 17, Iss 7, p 1635 (2017) Sensors; Volume 17; Issue 7; Pages: 1635 Sensors (Basel, Switzerland) |
| ISSN: | 1424-8220 |
| Popis: | A passive surface acoustic wave (SAW) pressure sensor was developed for real-time pressure monitoring in downhole application. The passive pressure sensor consists of a SAW resonator, which is attached to a circular metal diaphragm used as a pressure transducer. While the membrane deflects as a function of pressure applied, the frequency response changes due to the variation of the SAW propagation parameters. The sensitivity and linearity of the SAW pressure sensor were measured to be 8.3 kHz/bar and 0.999, respectively. The experimental results were validated with a hybrid analytical–numerical analysis. The good results combined with the robust design and packaging for harsh environment demonstrated it to be a promising sensor for industrial applications. |
| Databáze: | OpenAIRE |
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