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光学波导气体检测仪技术原理,它是通过玻璃光波导面固定对某一种被测气体有选择性响应的敏感试剂,来制作的薄膜光波导气体传感器。首先利用离子交换法可以制备出折射率平稳变化的光波导,然后通过玻璃基板表面附近结合比较弱的或可移动的离子与玻璃表面的半径较小离子进行交换,可以形成折射率略高于基板的导波。接着将筛选具有一定选择性的敏感材料,通过旋转甩涂法或者提拉法固定在玻璃光波导表面,制作薄膜玻璃光波导传感元件,将薄膜玻璃光波导传感元件安装在光波导检测系统中对气体进行检测,当敏感层与被测气体相互按触时,气敏改变敏感薄膜的光学参数,进而引起临近波传播模式的改变,导致输出光强度的变化。最终光学波导气体检测仪的输出光强度变化程度,与被测气体浓度有关,因此,检测输出光强度的变化就可以获得被测气体浓度的有关信息。7MB2111-1PE80-0BA17MB2111-1PC80-0BA17MB2521-1AA00-0AA17MB2111-0CA00-1AA17MB2121-0CA00-1AA17MB2335-0AD10-3AA17MB2335-0CD10-3AA17MB2335-0DD10-3AA17MB2335-0FD10-3AA17MB2335-0MD10-3AA17MB2335-0ND10-3AA17MB2335-0SD10-3AA17MB2024-0AA60-1CB17MB2335-0PD10-3AA17MB2335-0UD10-3AA17MB2521-0CB00-1AA17MB2337-0AR00-3CR17MB2335-0AR00-3AA17MB2511-0AA00-1AA17MB2121-0EV00-1AA17MB2121-0DW00-1AA17MB2124-0BA00-1WX17MB2337-1NH00-3PW17MB2335-0PH00-3AA17MB2335-0AL00-3AA17MB2335-0AN00-3AA17MB2335-0AG10-3AA17MB2335-0AH10-3AA17MB2335-0AJ10-3AA17MB2335-0AK00-3AA17MB2335-0AM00-3AA17MB2335-0AP00-3AA17MB2335-0AQ00-3AA17MB2335-0AR00-3AA17MB2335-0CD00-3AA17MB2335-0CE00-3AA17MB2335-0CF00-3AA17MB2335-0CG00-3AA17MB2335-0CH00-3AA17MB2335-0CJ00-3AA17MB2335-0CK00-3AA17MB2335-0CL00-3AA17MB2335-0CM00-3AA17MB2335-0CN00-3AA17MB2335-0CP00-3AA17MB2335-0CQ00-3AA17MB2335-0CR00-3AA17MB2335-0DD00-3AA17MB2335-0DE00-3AA17MB2335-0DF00-3AA17MB2335-0DG00-3AA17MB2335-0DH00-3AA17MB2335-0DJ00-3AA17MB2335-0DK00-3AA17MB2335-0DL00-3AA17MB2335-0DM00-3AA17MB2335-0DN00-3AA17MB2335-0DP00-3AA17MB2335-0DQ00-3AA17MB2335-0DR00-3AA17MB2335-0ND00-3AA17MB2335-0NE00-3AA17MB2335-0NF00-3AA17MB2335-0NG00-3AA17MB2335-0NH00-3AA17MB2335-0NJ00-3AA17MB2335-0NK00-3AA17MB2335-0NL00-3AA17MB2335-0NM00-3AA17MB2335-0NN00-3AA17MB2335-0NP00-3AA17MB2335-0NQ00-3AA17MB2335-0NR00-3AA17MB2335-0SD00-3AA17MB2335-0SE00-3AA17MB2335-0SF00-3AA17MB2335-0SG00-3AA17MB2335-0SH00-3AA17MB2335-0SJ00-3AA17MB2335-0SK00-3AA17MB2335-0ND00-3AA17MB2335-0ND10-3AA17MB2335-0NE00-3AA17MB2335-0NE10-3AA17MB2335-0NF00-3AA17MB2335-0NF10-3AA17MB2335-0NG00-3AA17MB2335-0NG10-3AA17MB2335-0NH00-3AA17MB2335-0NH10-3AA17MB2335-0NJ00-3AA17MB2335-0NJ10-3AA17MB2335-0NK00-3AA17MB2335-0NK10-3AA17MB2335-0NL00-3AA17MB2335-0NL10-3AA17MB2335-0NM00-3AA17MB2335-0NM10-3AA17MB2335-0NN00-3AA17MB2335-0NN10-3AA17MB2335-0NP00-3AA17MB2335-0NP10-3AA17MB2335-0NQ00-3AA17MB2335-0NQ10-3AA17MB2338-0AC00-3NH17MB2335-0NH00-3AA17MB2335-0PG00-3AA17MB2337-4PG00-3PG17MB2337-0NH10-3PH17MB2337-2AF10-3PH17MB2121-1CA00-1AA17MB2335-0PJ00-3AA17MB2337-8AP00-3CP1 ZC017MB2337-0AQ00-3CQ17MB2011-1CA00-1AA17MB2001-0EA00-1AA17MB2335-0MJ00-3AA17MB2521-0AB00-1AA17MB2335-0AE00-3AA17MB2111-0DF06-3AA1
这些反应由针对被测气体而设计的电极材料进行催化,通过电极间连接的电阻器,与被测气浓度成正比的电流会在正极与负极间流动。测量电流即可确定气体浓度。
优点:电化学气体检测仪耗电小、线性和重复性好、寿命长以及良好的挑选性和高灵敏度等特点,目前几乎广泛应用于实验室领域,电化学气体传感器是通过检测电流来检测气体的浓度,目前电化学气体检测仪是检测有毒有害气体最常见和最成熟的检测技术7MB2337-0AD10-3AD17MB2337-0AE00-3AD17MB2337-0AC10-3AD17MB2337-0AD00-3AD17MB2337-0NB06-3PT17MB2337-0NW10-3PW17MB2337-0NT06-3PT17MB2337-0NB06-3PE17MB2337-0NJ00-3PH17MB2337-0AR06-3CQ17MB2337-0NB06-3PE17MB2337-0AM06-3PJ17MB2337-0NF06-3PH17MB2337-0NF06-3PG17MB2337-0NJ06-3PG17MB2337-0NH06-3PW17MB2337-0NH16-3PW17MB2337-0NH06-3PG17MB2337-0NT06-3PE17MB2337-0NT06-3PT17MB2337-0NT06-3PT17MB2337-0NB06-3PT17MB2337-1NB16-3PT17MB2337-0AR00-3CQ17MB2337-4PJ00-3NJ17MB2337-0AM00-3CP17MB2337-0AU10-3CP17MB2337-8AJ00-3CP17MB2338-0AA00-3AE1 7MB2338-0AA00-3AF17MB2338-0AA10-3AE1 7MB2338-0AA10-3AF17MB2338-0AB00-3AE1 7MB2338-0AB00-3AF17MB2338-0AA10-3NH17MB2338-0AK10-3NW17MB2338-0AK10-3NU17MB2338-1AA10-3NH17MB2338-0AK00-3NW17MB2338-0AB00-3NH17MB2338-0AK10-3NG17MB2338-0AA00-3NH17MB2338-0AK00-3NF17MB2338-0BJ00-3DR17MB2338-4AA00-3NF17MB2338-4AA00-3NJ17MB2338-0AK16-3NB1C79451-A3005-B100C79451-A3005-B101C79451-A3008-B103C79451-A3008-B43C79451-A3008-B60C79451-A3008-C31C79451-A3040-B151C79451-A3040-B160C79451-A3040-B208C79451-A3040-B211C79451-A3040-B91C79451-A3040-C53C79451-A3040-D101C79451-A3040-D102C79451-A3040-D103C79451-A3040-D104C79451-A3040-D105C79451-A3040-D106C79451-A3040-D108C79451-A3040-D111C79451-A3040-D112C79451-A3040-D113C79451-A3040-D114C79451-A3040-D115C79451-A3040-D116C79451-A3040-D118C79451-A3040-D12C79451-A3040-D121C79451-A3040-D122