一种自动校准的微孔阴极阵列溶解氧离子电导率传感器

TRANSDUCERS '91: 1991 International Conference on Solid-State Sensors and Actuators. Digest of Technical Papers Pub Date : 1991-06-24 DOI:10.1109/SENSOR.1991.149038

Chen Yuquan, Li Guang, L. Weixue

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引用次数: 1

摘要

研制了一种新型的微型自动校准溶解氧离子电导率传感器。该传感器由两个金工作电极，一个Ag/AgCl参比电极，一个金反电极和一个Pt耐热电极组成。它在三电极恒电位模式下工作。两个工作电极分别具有多阴极阵列。一个用于测量氧气，另一个用于校准。通过将传感器切换到电导测量电路，两个工作电极也可用于测量溶液的电导。对传感器特性进行了评估，结果令人满意。在0.1 N-1 N KCl溶液中，在12-25℃的温度范围和760 torr的压力下，在3-16 p.p.m.的氧浓度范围内对传感器进行校准。观察到线性关系。

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A auto-calibrated microhole cathode array dissolved oxygen and ionic conductivity sensor

A novel miniature auto-calibrated dissolved oxygen and ionic conductivity sensor has been developed. This sensor consists of two gold working electrodes, a Ag/AgCl reference electrode, a gold counter-electrode, and a Pt thermal resistant. It operates in a three-electrode potentiostatic mode. The two working electrodes have a multiple-cathode array separately. One is used for the measurement of oxygen and the other is used for calibration. The two working electrodes can also be used to measure the conductance of a solution by switching the sensor to the conductance measurement circuit. Evaluation of the sensor characteristics was undertaken and the results are promising. Calibration of the sensor was performed over the oxygen concentration range of 3-16 p.p.m. in a 0.1 N-1 N KCl solution in the 12-25 degrees C temperature range and at 760 torr pressure. A linear relationship is observed.<>

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TRANSDUCERS '91: 1991 International Conference on Solid-State Sensors and Actuators. Digest of Technical Papers

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