Single chip readout electronics for SAW based gas sensor systems
Single chip readout electronics for SAW based gas sensor systems
复制标题
用于基于 SAW 的气体传感器系统的单芯片读出电子器件
DOI：
--
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
M. U. Sharma
中科院分区：
文献类型：
--
作者：
Fahim;Mainuddin;U. Mittal;J. Kumar;A. T. Nimal;M. U. Sharma
本文介绍了一种基于爱特梅尔 - 美高森美（Actel Microsemi）单片现场可编程门阵列（FPGA）的表面声波（SAW）传感器读出电路。它实时测量表面声波气体传感器输出的差频，对信号进行处理，并通过串口传输数据。采用中值滤波法进行脉冲噪声滤波，使用移动平均技术对数据进行平滑处理。检测并报告由气体检测产生的峰值。该电路可与任何类型的表面声波传感器配合使用，如气体传感器、温度传感器、压力传感器或湿度传感器。
This paper presents readout circuitry for surface acoustic wave (SAW) sensors based on a single chip Actel Microsemi Field Programmable Gate Array (FPGA). It measures the difference frequency output from SAW gas sensor in real time, processes the signal and transfers the data through serial port. The impulse noise filtering is done using median filtering method and the data is smoothed using moving averages technique. The peaks, resulting from detection of gases, are detected and announced. The circuitry can be used with any type of SAW sensor like gas sensor, temperature, pressure or humidity.