arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1303.3306physics.ins-det
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作为pH传感器的EGFET电特性嵌入式测量系统

An embedded measurement system for electrical characterization of EGFET as pH sensor

Pablo Diniz Batista

摘要:

本文介绍了一种基于扩展栅场效应晶体管(EGFET)的pH传感器电特性测试系统。设计了以单片机(PIC 15 F14 K50)为核心的电子电路,提供两路可编程电压输出,并设计了电流和电压的测量电路。以玻璃电极为敏感膜,对EGFET作为pH传感器进行了性能分析。结果表明,该系统是一种替代商业设备的电气特性的传感器的基础上的场效应器件。此外,该电子模块预期的一些关键特征是:低成本、灵活性、便携性和使用USB端口与个人计算机通信。

英文摘要:

This work presents the development of an electronic system for the electrical characterization of pH sensors based on the extended gate field effect transistor (EGFET). We designed an electronic circuit with a microcontroller (PIC15F14K50) as the main component in order to provide two programmable outputs voltage as well as circuits to measure electric current and voltages. The instrument performance analyze was carried out using a glass electrode as a sensitive membrane for investigating the EGFET operation as pH sensor. The results show that the system is an alternative to commercial equipment for the electrical characterization of sensors based on field effect devices. In addition, some of the key features expected of this electronic module are: low cost, flexibility, portability and communication with a personal computer using a USB port.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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