Temperature-insensitive pressure transducer based on reflected broadened spectrum with enhanced sensitivity
Pasting of half the grating of an FBG sensor on a natural rubber diaphragm was used to sense the pressure measurement. The pressure-induced strain on half of the grating resulted in bandwidth broadening. From the pressure range of 0 kPa to 20 kPa, the pressure sensitivity at 15 dB bandwidth changed...
محفوظ في:
المؤلفون الرئيسيون: | , , , |
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التنسيق: | مقال |
اللغة: | English |
منشور في: |
Elsevier
2019
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الموضوعات: | |
الوصول للمادة أونلاين: | http://umpir.ump.edu.my/id/eprint/24265/1/Temperature-insensitive%20pressure%20transducer%20based%20on%20reflected.pdf http://umpir.ump.edu.my/id/eprint/24265/ https://doi.org/10.1016/j.sna.2019.01.028 https://doi.org/10.1016/j.sna.2019.01.028 |
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الملخص: | Pasting of half the grating of an FBG sensor on a natural rubber diaphragm was used to sense the pressure measurement. The pressure-induced strain on half of the grating resulted in bandwidth broadening. From the pressure range of 0 kPa to 20 kPa, the pressure sensitivity at 15 dB bandwidth changed was obtained at 77.7 pm/kPa with 99.94% of linearity. Through total reflected power monitoring via photodetector, the pressure transducer retrieved a sensitivity of 0.1686 dB m/kPa and evaded a complex demodulation technique. As a result of the temperature-independent bandwidth change, the pressure transducer was totally temperature insensitive. |
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