Affiliation:
1. Graduate School of Electronic Engineering, National Yunlin University of Science and Technology, Yunlin, Taiwan
2. Graduate School of Optoelectronics, National Yunlin University of Science and Technology, Yunlin, Taiwan
Abstract
The sensor is a kind of device about electrochemical science, its applications include clinical and environmental analyses, physiology, and process control; therefore, how to accurately detect the signal of the sensor is one of the most important things for analyzing the characteristics of sensor. For potentiometric device, this study relates to a multielectrode measurement system based on the programable software, LabVIEW, forming a virtual instrument (VI). This system is built as a voltage versus time (V–T) framework and a dynamic detection system. We selected two devices, a digital multimeter (HP 34401A) and a homemade VI, synchronously to measure the sources of a direct current (DC) signal and an electrode cell (EC), respectively. The maximum errors between the two devices are 0.639 mV in DC supply and 0.345 mV in EC supply, which specifies that the efficiency of design measurement system is good for detection.
Publisher
National Taiwan University
Subject
Biomedical Engineering,Bioengineering,Biophysics