【摘要】 根据Clark溶解氧传感器的工作原理,在对影响溶解氧传感器检测性能的温度、大气压、盐度等参数进行机理分析的基础上,通过实验对溶解氧传感器进行了以上参数的补偿校正,再将补偿后的溶解氧传感器检测值与碘量法检测值进行对比分析。结果表明,补偿后的溶解氧传感器与碘量法相比,测量值的相对误差小于1%,且具有较高的精度、稳定性及抗干扰能力,能广泛应用于各种溶解氧的检测环境。更多还原

【Abstract】 Using the working principle of a Clark dissolved oxygen sensor and a mechanistic analysis of the parameters—such as temperature, atmospheric pressure and salinity—which affect the detection performance of the dissolved oxygen sensor, a compensated correction of temperature, atmospheric pressure and salinity parameters of a dissolved oxygen sensor has been performed experimentally. The value given by the dissolved oxygen sensor after the compensation was compared with the values given by the iodometric method. The results show that the compensated dissolved oxygen sensor has a relative error of less than 1% compared with the iodometric method, and has high accuracy, stability and anti-interference ability. Thus it can be widely used in various dissolved oxygen detection environments.更多还原