What is a zirconia oxygen sensor? The zirconia oxygen sensor does not measure the oxygen concentration but measures the partial pressure of oxygen in a certain gas or mixture of gases. At the center of the sensor is a proven, small zirconia-based component. Thanks to the innovative design of the product, no reference gas is required. This eliminates the sensor's limitations in working at high temperatures, high humidity and high oxygen pressures and all other possible environments. What is zirconia? At high temperatures (>6500C), stable zirconia (ZrO22) exhibits two mechanisms: The ZrO2 portion separates and generates mobile oxygen ions, thus forming an oxygen solid electrolyte. The zirconia disk is covered with a transparent electrode connected to a constant DC current so that oxygen ions in the environment can pass through this material, thereby releasing a certain amount of oxygen at the anode which is proportional to the delivered charge (electrochemical pumping), According to Faraday's first law, we have: N oxygen moles transferred i constant current t time (s) z Oxygen particle price F Faraday constant = 96487 C/mola ZrO2 behaves like an electrolyte. If there are two different oxygen pressures across the zirconia, a voltage (Nernst voltage) is generated via the zirconia. What is Nernst voltage? Two different ion concentrations at the two ends of the electrolyte will generate a potential, also known as Nernst voltage. The voltage magnitude is proportional to the natural logarithm of the ratio of the two different ion concentrations. kB Boltzmann constant (kB = 1.3x10-23J/K) T temperature (K) The basic charge of e0 (e0 = 1.602x10-19C) Ci ion concentration (mol/kg) Many oxygen sensors on the market generally use only one of the above two properties, but the SST zirconia oxygen sensor applies both principles. This eliminates the need for a sealed reference gas and makes the sensor more versatile in a variety of different oxygen pressure environments Mining and production network Xiaobian recommend SST zirconia oxygen sensor -O2S-FR-T2 and O2S-FR-T2-18A/B/C O2S-FR-T2 Zirconia Oxygen Sensor Features 1) Non-consumable zirconia sensing element 2) Oxygen pressure range 2 mbar...3 bar 3) High stability and accuracy, can measure 0...100% oxygen 4) No cross-interference with other gases 5) No temperature stabilization 6) Built-in heating element 7) Allowable air temperature -100~400°C Threaded High Temperature Zirconia Oxygen Sensor (O2 Sensor) - O2S-FR-T2-18A/B/C Features 1) Oxidation range: 2mbar-3bar Precision machining is a kind of machining, which is a workpiece to meet the requirements of the drawing of the line tolerance of the processing process, the workpiece in this process, will have certain changes in their performance characteristics and shape structure. Precision Machining,Casting Exhaust Manifold,Stainless Stee Milling,Custom Cnc Machining Part Tianhui Machine Co.,Ltd , https://www.thcastings.com
2) Zirconia detection element
3) Non-expendable technologies
4) No temperature, no reference gas required
5) High precision
6) Linear output signal
7) Work with external interface board
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