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電化學(xué)傳感器原理翻譯

電化學(xué)傳感器的構(gòu)成是:將兩個(gè)反應(yīng)電極――工作電極和對(duì)電極以及一個(gè)參比電極放置在特定電解液中，然后在反應(yīng)電極之間加上足夠的電壓，使透過(guò)涂有重金屬催化劑薄膜的待測(cè)氣體進(jìn)行氧化還原反應(yīng)，再通過(guò)儀器中的電路系統(tǒng)測(cè)量氣體電解時(shí)產(chǎn)生的電流，然后由其中的微處理器計(jì)算出氣體的濃度。電化學(xué)傳感器結(jié)構(gòu)示意圖與工作原理圖如下圖所示。氣體首先通過(guò)微小的毛管型開(kāi)孔與傳感器發(fā)生反應(yīng)，然后是憎水屏障，最終到達(dá)電極表面。穿過(guò)屏障擴(kuò)散的氣體與傳感電極發(fā)生反應(yīng)，傳感電極可以采用氧化機(jī)理或還原機(jī)理。這些反應(yīng)由針對(duì)目標(biāo)氣體而設(shè)計(jì)的電極材料進(jìn)行催化。通過(guò)電極間連接的電阻器，與電氣濃度成正比的電流會(huì)在正極與負(fù)極間流動(dòng)。測(cè)量該電流即可確定氣體濃度。求英文翻譯: 問(wèn) 提問(wèn)者：網(wǎng)友 | 2017-08-28

最佳回答

The electrochemical sensor is: will constitute two reactions - work of electrode and electrode electrode and a reference electrodes placed in particular electrolyte, and then in the reaction between electrode voltages, add enough metal catalysts are through the film for measuring gas REDOX reaction, then the circuit by electrolysis gas produced when measuring system, then the current by microprocessor calculate gas concentrations. Electrochemical sensor structure and working principle chart drawing shown below. The first through tiny gas hole and capillary type sensor, and then is disgusting, water barrier to the electrode surface. Through the barrier of gas sensor electrode and diffusion, sensor electrode can react by oxidation mechanism or reduction mechanism. These reactions by targeting gas and design of catalytic electrode materials. The connections between the electrodes, and electrical concentration resistor is proportional to the current will flow in the positive and negative. Measure the concentration of gas current can be determined.: 回答者：網(wǎng)友

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