• <em id="ldrkz"></em>
    1. <dd id="ldrkz"><noscript id="ldrkz"></noscript></dd>

    2. <button id="ldrkz"><acronym id="ldrkz"><cite id="ldrkz"></cite></acronym></button>
    3. 中文版  |  ENGLISH  |   設為首頁  |   加入收藏
      產品[

      氧氣分析儀

      ]資料
      如果您對該產品感興趣的話,可以 sendmsg
      產品名稱: 氧氣分析儀
      產品型號: 氧氣分析儀
      產品廠商: 其它品牌
      產品文檔: 無相關文檔


      簡單介紹

      氧氣分析儀 電化學測量單元和電池倉被設計在一個整體的固體模塊中,這樣可以延長其使用壽命.測量原理是氧氣減少在陰極,由此產生的電流擴散速度,只取決要測量大氣和/或氣體所載氧的濃度成正比.傳感器可以輕松替換,價格不貴。

      氧氣分析儀的詳細介紹

      氧氣分析儀
      電化學測量單元和電池倉被設計在一個整體的固體模塊中,這樣可以延長其使用壽命.測量原理是氧氣減少在陰極,由此產生的電流擴散速度,只取決要測量大氣和/或氣體所載氧的濃度成正比.傳感器可以輕松替換,價格不貴。

      Oxygen Analyzers

      Electrochemical cells (fuel cells)

      The electrochemical cell and the measuring chamber are housed in a monoblock construction in order to prevent extended purge times. The oxygen is reduced at the cathode and the resulting current is proportional to the diffusion-rate, which only depends on the concentration by volume of the Oxygen contained in the atmosphere and/or the gases to be measured. The sensor can be easily replaced and is inexpensive.

      The Oxygen sensors described herein are specific to Oxygen and are capable of measurements below 1 ppb (parts-per-billion) up to and including 100. Oxygen reacts chemically at the sensing electrode fo produce an electrical current signal Output proportional to the Oxygen concentration in the sample gas. The signal Output is linear over all analyzer ranges specified and does remain virtually constant over its normal useful life unlike sensors manufactured by other competitors.

      Innovative designs, development of proprietary manufacturing techniques, electrodes and electrolyte materials have been combined to optimize the critical characteristics of the Oxygen sensors to produce the first real advancements in sensor technology in decades.

      Benefits

      • replaceable and maintenance free sensor, completely PTFE-sealed without cleaning
      • unaffected by flow rate, water reducing atmosphere or flue gas
      • useable in combustible gases (HC's, hydrogen), for corrosive gases special electrolytes
      • air calibration (20,9 % O2), no zero or reference-gas required
      • integrated flow adjusting valve
      • specific with absolute zero and linear output
      Applications

      • Liquefaction: Purity of H2, N2, Ar, He
      • Chemical industry: Purity of Butadien, Propylen
      • Nuclear industry: Atmosphere in Glove-boxes
      • Electronic industry: Semi conductor production
      • Metal industry: Thermal treatment

      Paramagnetic Sensor

      Magnetic properties of gases. All paramagnetic measuring instruments available on the market today are based on utilizing the paramagnetic properties of oxygen. Oxygen is one of very few gases with a strong magnetic susceptibility. The movement of the electrons within a molecule generates magnetic moments. A distinction is made in this context between:

      • orbital magnetic moment: movement of electrons around the nucleus, within the orbitals
      • spin magnetic moment: the electron's own rotation
      External magnetic fields influence these magnetic moments, causing them to align. The orbital magnetic moment responds diamagnetically, in other words aligns in the opposite direction of the external field, thereby weakening it. In contrast, the spin magnetic moment responds paramagnetically, i.e. aligns parallel to the external field and therefore strengthens it. Depending on a molecule's structure, the orbital and spin magnetic moments will be more or less strongly marked, which in turn results in the different magnetic properties of gases. Oxygen has strong paramagnetic properties, while nitrogen responds diamagnetically.

       
        Principle of measurement: There are various different principles of paramagnetic measurement, though in recent years the magnetomechanical or "dumb-bell" principle has come to be used in most measuring instruments. The principle of measurement is based on a sensor in which a dumb-bell comprising two nitrogen-filled spheres is arranged in rotational symmetry within a magnetic field. The gas to be measured passes through the sensor. If the sample gas contains oxygen, the oxygen is drawn into the magnetic field on account of its paramagnetic properties as described above, thereby strengthening the field. The nitrogen inside the glass spheres has the opposite magnetic polarization and is forced out of the field, causing the dumb-bell to rotate. The degree of rotation is directly proportional to the oxygen concentration. To reduce sensitivity to vibration, the dumb-bell's rotation is no longer measured directly in modern sensors. Instead, a mirror is attached at the dumb-bell's rotational axis and symmetrically reflects a beam of light onto a pair of photocells. When the dumb-bell starts to rotate, a potential difference is generated at the photocells. The resulting current is amplified and conducted around the dumbbell through windings. The current flow generates an electromagnetic countermoment which causes the dumb-bell to return to its original position. The current needed to maintain the dumb-bell in its null position is directly proportional to the oxygen concentration.

      Benefits

      • non resumable, no sensor changing
      • insensitive to flow and temperature changes
      • fast response time
      • long life stability
      Applications

      • Liquefaction: Purity of H2,N2, Ar,He
      • Chemical industry: Purity of Butadien, Propylen
      • Nuclear industry: Atmosphere in Glove-boxes
      • Pharmceutical industry, Air separation plants, Medical applications, dustrie

      Zirconia-oxygen-sensor

      Principle of function: The principle of the zirconia oxygen analyzer is as follows: At high temperatures the zinconia element, as a solid electrolyte, is a conductor of oxygen ions. Platinum electrodes are attached to the interior and exterior of the zirconia. Heating the element allows different partical oxygen concentrations of the gasses to come into contact with the opposite side of the zirconia creating an oxygen concentration cell. In other words, oxygen molecules gain electrons to form oxygen ions with higher partical oxygen concentrations. These ions travel through the zirconia element to the other electrode. At that point, electrons are released to form oxygen molecules (refer to the chemical formula). The Nernst expression can be applied to calculate the force by measuring the electromotive force E generated between the two electrodes.

      Benefits

      • Less Maintenance wartungsfrei; long life distances (3-5 years)
      • Working pressure 0...4 bar
      • Unlimited storability
      • Range comparison to ambient air
      • Long life stability, no reference gases necessary
      Applications

      • Liquefaction: Purity of H2,N2, Ar,He
      • Verpackungsindustrie: Inertisierung
      • Nuclear industry: Atmosphere in Glove-boxes
      • Medical application: medical oxygen
      • Clean-room enginering Luftanalyse

      Housings

      • Rack 19"
      • Portable version with rechargeable battery with built in charger (optional internal pump)
      • Wall mounting version
      • Analyzers for hazardous areas, ATEX compliant
      Please contact our specialists for further information and description off all analyzers.

      產品留言
      標題
      聯系人
      聯系電話
      內容
      驗證碼
      點擊換一張
      注:1.可以使用快捷鍵Alt+S或Ctrl+Enter發送信息!
      2.如有必要,請您留下您的詳細聯系方式!


      ·德國Petrotest石油產品分析測試儀 ·英國馬爾文激光粒度分析儀 ·密里博Millipore純水系統 ·美國GE總有機碳TOC分析儀 ·美國HACH水質分析系統 ·德國SCHOTT粘度儀 ·美國TSI環境監測分析儀 ·影像系統 ·生物芯片 ·ATAGO折光儀旋光儀 ·Schott肖特電化學儀器系列 ·Biohit百得液體處理系列產品 ·LAUDA水浴溫控設備 ·德國艾本德Eppendorf實驗室儀器 ·德國徠卡Leica ·通用電氣GE實驗室分析儀器系統 ·沃特世液相色譜儀 ·依拉勃超凈工作臺 ·德國Julabo ·美國Lead tech ·德國Binder ·日本Shimadzu ·美國Brookfield ·德國IKA ·瑞士Buchi ·瑞士E+H公司儀器儀表 ·瑞士梅特勒-托利多檢測設備/商用衡器及系統 ·日本SANYO三洋箱柜產品系列 ·美國Thermo Fisher賽默飛世爾分析儀器系列 ·美國Agilent Technologies安捷倫分析儀器 ·瑞士Metrohm萬通實驗室儀器系列 ·美國VARIAN瓦里安分析儀器系列 ·德國WTW環保儀器系列 ·法國Secomam COD測試儀 ·美國HACH總有機碳TOC分析測試儀 ·美國BJC工業用電極 ·德國博德BD sensors壓力變送器 ·實驗室分析儀器系列

      上海美盛自動化設備有限公司(簡稱為:Masonz) 電話: 15821867868  銷售及技術服務中心:上??偛浚?span style="font-family:"Times New Roman";font-size:x-small;white-space:normal;">上海市松江區伴亭東路288號

      滬ICP備13006432號-1
        
      99在线精品视频观看免费
    4. <em id="ldrkz"></em>
      1. <dd id="ldrkz"><noscript id="ldrkz"></noscript></dd>

      2. <button id="ldrkz"><acronym id="ldrkz"><cite id="ldrkz"></cite></acronym></button>