Demonstration of Real-Time Data Acquisition in CMOS Capacitive Sensor Arrays: Evaporation Monitoring

This video demonstrates the real-time data acquisition and noise reduction capabilities of a CMOS capacitive sensor array (CSA) implemented on an FPGA. The system captures the evaporation process of a deionized water droplet placed on the sensor array, using multiple sampling (MS) and pixel-wise accumulation (PWA) techniques to enhance signal quality and reduce random noise. The system efficiently processes and transmits the data, showcasing the gradual reduction in the droplet's size as it evaporates. This demonstration highlights the potential of the CSA system for high-throughput, real-time biomedical applications such as lab-on-chip devices.

本视频展示了部署于现场可编程门阵列（FPGA）的CMOS电容式传感器阵列（CMOS capacitive sensor array, CSA）的实时数据采集与降噪性能。该系统采集置于传感器阵列上方的去离子水滴的蒸发过程，借助多次采样（multiple sampling, MS）与逐像素累加（pixel-wise accumulation, PWA）技术提升信号质量并抑制随机噪声。系统可高效处理并传输数据，直观呈现液滴蒸发过程中尺寸的逐步缩减。本次演示凸显了CSA系统在高通量、实时生物医学应用场景中的应用潜力，例如芯片实验室（lab-on-chip）设备。