Development Of High Throughput Electrochemical Test System

"High throughput experiment" refers to the completion of a large number of samples within a short time the preparation and characterization of the experimental method.High-throughput experimentation has made great progress in the past half-century,and its effectiveness and practicality have been validated in several research cases in materials science.The promotion and application of high-throughput experiments urgently need to develop a series of highly efficient,high-speed and high-precision instruments and equipment.This paper mainly introduces the research work of high-throughput electrochemical test system developed independently.This paper first introduces the research background and progress of the electrochemical test system,and then introduces the corresponding electrochemical test technology foundation.Finally,the overall design scheme of the high-throughput test system and the overall hardware design scheme of the independent test channel are given according to the functional requirements and technical indexes of the system.On this basis,the hardware design,software design and test mechanism design of the system are completed.Based on the CAN bus and power bus system architecture,in the hardware aspect,the paper discusses the constant potential instrument circuit,the current detection circuit,the current detection signal conditioning circuit,the current detection signal filter circuit,the constant current module response signal detection,the signal generator module,data acquisition module,the system related switch switch design,controller module design,system power supply design,CAN communication bus design,interface design and adapter board design.The technical problems and parameters in the design are discussed in detail,and the hardware structure design of the high throughput electrochemical test system is constructed.In the software,the paper mainly discusses the high-throughput electrochemical analysis system workflow,the AD5781 program design,the data acquisition module ADS8885 program design,the current detection range automatic switching software control process,the instrument self-test program,cyclic voltammetry,electrochemical impedance spectroscopy and high-throughput electrochemical test system PC software design.After the completion of all the design of the system to show the design of the physical,and the test analysis: the analysis of the system’s technical indicators,the system part of the test results are discussed,and the United States Princeton company VersaSTAT 3F the same test object test results contrast discussion.Finally,the performance of the system is evaluated.The comparison results show that the system can realize the cyclic voltammetry and so on,and it has high precision.Finally,some research on the development of high-throughput electrochemical test system is discussed,including the excitation and acquisition problem of high-through-put system,power bus,a fast AC impedance algorithm and two kinds of test structure design.Here we propose two kinds of high-throughput experimental test platform structure,novel,and high-throughput system can be matched,greatly improve the speed of experimental testing.