仪表技术与传感器
儀錶技術與傳感器
의표기술여전감기
INSTRUMENT TECHNIQUE AND SENSOR
2015年
2期
57-59,90
,共4页
孙鹏%李磊%郭茂田%蔡玉宝%陈云鹏%闫永立
孫鵬%李磊%郭茂田%蔡玉寶%陳雲鵬%閆永立
손붕%리뢰%곽무전%채옥보%진운붕%염영립
石英晶体微天平%以太网传输协议%高精度频率计数卡%FPGA
石英晶體微天平%以太網傳輸協議%高精度頻率計數卡%FPGA
석영정체미천평%이태망전수협의%고정도빈솔계수잡%FPGA
quartz crystal microbalance%ethernet transmission protocol%high-precision frequency counting cards%FPGA
为克服现有单气敏传感器测量系统非自动识别气体种类和浓度的缺陷，采用一种基于以太网传输协议的32通道石英晶体微天平（ QCM）测量系统。该系统由QCM气敏传感器阵列起振模块和高精度频率计数卡组成。起振模块产生32路石英晶体频率信号；高精度频率计数卡通过FPGA内部计数器直接采样频率信号，通过以太网高速传输到上位机进行数据存储、数据处理及信号波形显示。测试结果表明：系统可以实现实时、多通道、高速、高精度采集和发送数据。
為剋服現有單氣敏傳感器測量繫統非自動識彆氣體種類和濃度的缺陷，採用一種基于以太網傳輸協議的32通道石英晶體微天平（ QCM）測量繫統。該繫統由QCM氣敏傳感器陣列起振模塊和高精度頻率計數卡組成。起振模塊產生32路石英晶體頻率信號；高精度頻率計數卡通過FPGA內部計數器直接採樣頻率信號，通過以太網高速傳輸到上位機進行數據存儲、數據處理及信號波形顯示。測試結果錶明：繫統可以實現實時、多通道、高速、高精度採集和髮送數據。
위극복현유단기민전감기측량계통비자동식별기체충류화농도적결함，채용일충기우이태망전수협의적32통도석영정체미천평（ QCM）측량계통。해계통유QCM기민전감기진렬기진모괴화고정도빈솔계수잡조성。기진모괴산생32로석영정체빈솔신호；고정도빈솔계수잡통과FPGA내부계수기직접채양빈솔신호，통과이태망고속전수도상위궤진행수거존저、수거처리급신호파형현시。측시결과표명：계통가이실현실시、다통도、고속、고정도채집화발송수거。
A quartz crystal microbalance( QCM) measurement system is designed based on 32 channels of ethernet transmis-sion protocol,in order to overcome the defects of existing single gas sensor measuring systems which cannot automatically identify the gas type and concentration.The system consisted of an array of QCM gas sensor start-up module and high-precision frequency counter card.The start-up module produced 32 quartz crystal frequency signals;Precision frequency counter card directly collected the frequency of the signal by FPGA internal counter via the ethernet speed transmission to the host computer for data storage,data processing and signal waveform display.The test results show that the system can achieve real-time,multi-channel,high-speed and-precision of data acquisition and sending.
