A digitalized design of high-precision visibility meter transmitter
To achieve the steady output of the visibility meter probe beam, a high-precision and digitalized visibility meter transmitter based on FPGA has been designed. A bunch of scattered light has been used for the feedback signal of optical power control circuit. In FPGA, the signal entered filtering, RM...
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Published in | Proceedings 2013 International Conference on Mechatronic Sciences, Electric Engineering and Computer (MEC) pp. 506 - 510 |
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Main Authors | , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
01.12.2013
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Subjects | |
Online Access | Get full text |
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Summary: | To achieve the steady output of the visibility meter probe beam, a high-precision and digitalized visibility meter transmitter based on FPGA has been designed. A bunch of scattered light has been used for the feedback signal of optical power control circuit. In FPGA, the signal entered filtering, RMS conversion, amplification and differential module to achieve current dynamic adjustment. In the temperature control unit, the increment digital PID control arithmetic has been adopted and PWM has been used for the output form. The experimental result shows that the system is stable and the fluctuation of transmitter output light intensity is 1.4%. |
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ISBN: | 9781479925643 1479925640 |
DOI: | 10.1109/MEC.2013.6885119 |