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The Design of Gas Concentration Detection System Based on Acoustic Relaxation Method

机译:基于声学弛豫法的气体浓度检测系统设计

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The concentration detection of the mixed gas is significant to operate safely and efficiently as well as reduce the emission of pollutants. In this paper, a concentration detection system based on acoustic relaxation attenuation is designed in order to reconstruct the three-dimensional images. The system is based on FPGA, supplemented by other hardware circuits. The consists of the system, the choice of the ultrasonic transducer, the calculation of amplifier magnification, and the specific design of circuit are elaborated in the paper. Experiments certificate that the hardware system can measure the attenuation intensity and flight time of ultrasonic waves in real time accurately. It is the base to detect the concentration of the gas mixture.
机译:混合气体的浓度检测是安全有效的,并且减少污染物的排放是显着的。本文设计了基于声学弛豫衰减的浓度检测系统,以重建三维图像。该系统基于FPGA,由其他硬件电路补充。该纸张中阐述了该系统的选择,超声换能器的选择,放大器放大率的计算和电路的特定设计。实验证明,硬件系统可以准确地测量超声波的衰减强度和飞行时间。它是检测气体混合物浓度的基础。

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