Teledyne氧气传感器

Teledyne氧气传感器

Teledyne Analytical Instruments的微型燃料电池（Micro Fuel Cell）是一种独特的电化学氧气传感器，通过结合以下功能提供多种氧气传感能力。在空气（20.9%氧气）中，电池的寿命为3至18个月，具体取决于电池类别。如果放在原始的气体阻隔袋中，预期寿命每年只会缩短其“空气中寿命”的1/20。保质期通常为1至3年或更长。微型燃料电池（Micro Fuel Cell）的90%响应时间为5-60秒，也取决于电池类型。
微型燃料电池（Micro Fuel Cell）的设计对冲击、振动和位置不敏感。电池可以掉落而不会产生不利影响，也可以安装在几乎任何位置而不会改变灵敏度。由于氧气取样是扩散控制的（通过膜），因此样品气体流过电池的速率并不重要。0.1至10升/分钟范围内的流速不会导致读数变化（前提是不会产生明显的背压。）

Teledyne氧气传感器工作原理

因此，O2传感器作为燃料电池运行，其输出仅受氧气进入电池的速率和电池内储存的阳极材料量的限制。这种输出不足以使电池用作电源，而这是大多数燃料电池的目的。然而，该电池确实提供了足够的输出来直接驱动仪表，或者在放大后，将提供能够执行更复杂功能的输出。

Teledyne Analytical Instruments微型氧气燃料电池（Micro Fuel Cell）物理特性
微型氧气燃料电池（Micro Fuel Cell）是一种密封的一次性氧气传感器，直径为1.25英寸，厚度为0.75英寸。它具有相对较大的感测区域（直径0.7英寸），可以产生不需要放大来驱动模拟显示设备的高电平输出信号。 大的传感区域还减少了与样品流中的蒸汽冷凝相关的读数误差，这些误差通常会导致小传感区域的传感器读数低甚至为零。 微型燃料电池（Micro Fuel Cell）的后部被一个由两个同心箔组成的接触板覆盖。这些箔片与容纳细胞的各种探针组件和样品歧管中的弹簧加载触点配合。

Teledyne Analytical Instruments氧气传感器特征
微型氧气燃料电池（Micro Fuel Cell）结合了几个重要功能，提供了TAI认为目前可用的任何氧传感器中理想和通用的性能特征。 使用微型燃料电池（Micro Fuel Cell）无需进行任何维护。无需清洁或更换电极，无需更换电解质或膜，无需经过专门培训的操作人员，并将维护工时减少到很低限度。这可能是与提供分析仪器相关的重要的成本节约领域。与维护相关的成本可能是仪器本身初始成本的几倍。
在没有氧气的情况下，微型燃料电池（Micro Fuel Cell）几乎没有输出。这意味着使用这些传感器的分析仪不需要“零”气体。微型燃料电池（Micro Fuel Cell）对氧气具有特异性，在存在其他无机和有机气体的情况下不会产生输出。**的例外是强无机氧化气体，如氯、氟、溴等。
微型氧气燃料电池（Micro Fuel Cell）的输出稳定，在恒定的氧气浓度下运行电池数周，观察到读数变化不超过满量程的±1%，这种情况并不罕见。TAI建议进行2至4周的校准检查。然而，一些客户每年只进行2到4次校准检查，结果令人满意。微型O2燃料电池（Micro Fuel Cell）旨在提供长期、可靠的性能，并对氧气浓度的变化做出快速响应。氧电池的使用寿命取决于其暴露于氧气的时间长度和氧气浓度的大小。

Teledyne Analytical Instruments氧气传感器种类和应用

Class型号	Application应用	Comments描述
A-1	Ultra-fast response (90% in less than 4 seconds) in the percent oxygen region.	Use only when B-1 response time is insufficient.
A-2C	Used for trace O2 measurements in CO2 containing backgrounds (0.1-100% CO2). CO2 must be present.	Use where acid gases are present (CO2, HCl, HCN, etc). CO2 must be present.
A-2CXL	Specially qualified A2C sensor to operate in XL model analyzers. Low range limit is 0-1 ppm.	Use where acid gases are present (CO2, HCl, HCN, etc). CO2 must be present.
A-5	Intermittent or continuous monitoring of percent O2 in gas mixtures containing 0-100% CO2. 90% response is time is 45 seconds.	Has more tolerance to exposure to air than A-3. No restrictions on CO2 concentration.
B-1	General purpose percent oxygen analysis where fast response is desired (90% in less than 7 seconds).	Use B-3 or C-3 where longer life is required and response time is relatively unimportant. May be used to spot check flue gas.
B-2C	General purpose trace O2 analysis for use in inert gas and hydrocarbon streams. Low range limit is 0-10 ppm.	May be used in CO2 free gas streams containing highly mobile gases such as H2, He and ethylene.
B-2CXL	Specially qualified B-2C sensor to operate in XL model analyzers. Low range limit is 0-1 ppm.	May be used in CO2 free gas streams containing highly mobile gases such as H2, He and ethylene.
B-3	Percent O2 analysis, best compromise between long life and fast response.	May be used to spot check flue gas.
B-5	Special application cell (non-standard) where long life and moderately fast response are required; B-5 has a factor of 3x the life of a B-3.	Requires 3x the amplifier gain of the B-3. Expected life is 36 months in air.
B-5F	Special application cell (non-standard) where long life and moderately fast response, in the presence of CO2, are required.	Uses Type F (acid electrolyte). Requires higher amplifier gain than normal. 90% response in 13 seconds. Expected life in air is 6 months.
B-7	Special application cell (non-standard) where fast response is required; the B-7 has a factor of 3x the life of a B-1 cell.	Requires 3x the amplifier gain of the B-1. Expected life in air is 24 months.
B-7F	Special application cell (non-standard) where moderate life and fast response, in the presence of CO2, are required.	Requires higher amplifier gain than normal. 90% response time is 7 seconds. Expected life in air is 3 months.
C-3	Percent O2 measurements where maximum cell life is desired (high O2 applications).	90% response time is 30 seconds. Expected life in air is 18 months.
C-5	Special application cell (non-standard) where long life is required; the C-5 has a factor of 3x the life of a C-3 cell.	Requires 3x the amplifier gain of the C-3. Expected life in air is 54 months.
C-5F	Special application cell (non-standard) where long life, in the presence of CO2, is required.	Requires higher amplifier gain than normal. 90% response time is 30 seconds. Expected life in air is 9 months.
C-6	Motion insensitive percent O2 measurements for use in hand held portable monitors.	Best cell for OEM safety applications.
InstaTrace	Special patented construction provides rapid recovery during initial cell installation; Low range limit is 0-10 ppm.	Used for trace O2 analysis in inert gas and hydrocarbon streams.
InstaTrace CO2	Special patented construction provides rapid recovery during initial cell installation by reducing the recovery period from several hours to just minutes. Used for trace O2 measurements in CO2 containing backgrounds (0-100% CO2) in the 3000T analyzer series.	Use where acid gases are present (CO2, HCl, HCN, etc). CO2 must be present. The INSTA TRACE Micro-fuel Cell oxygen sensor is capable of measuring below 1 ppm of oxygen within 15 minutes of installation.
InstaTrace XL	Specially qualified sensor to operate in XL model analyzers with a low range limit of 0-1 ppm.	Used for trace O2 analysis in inert gas and hydrocarbon streams.