AI 中文总结
本文介绍OASIS-ERIS，它是OASIS-UROS继任者，基于特定模数转换器和微控制器。通过跨设备连接采样时钟提升可用性，固件迁移提高采样频率。经与商业系统测试对比，性能相近，可用于预算紧张的学术和项目替代商业系统。
AI 中文摘要
OASIS-ERIS是用于IEPE传感器的开放式采集系统，是之前发布的OASIS-UROS的继任者。它基于ADI的AD7606C-18模数转换器（8通道同时采样，18位分辨率）和Espressif ESP32-S3微控制器。设备间同步功能显著提升其实验室可用性，通过跨设备连接采样时钟可实现任意数量采集板的同步数据采集。固件迁移到ESP-IDF使采样频率提高到100kHz。本文记录其软硬件堆栈并提供重现所需材料，在实验模态分析中与商业测量系统测试对比，结果表明它性能与商业系统相近，可替代预算紧张的学术和项目。
英文摘要
OASIS-ERIS, the Open Acquisition System for IEPE Sensors - Electrically Refined and Inter-device Synchronization, is the successor to the previously released OASIS-UROS. It is based on the Analog Devices AD7606C-18 analog-to-digital converter, offering 18-bit resolution on eight simultaneously sampled channels, and the Espressif ESP32-S3 microcontroller. The laboratory usability of OASIS-ERIS is significantly improved compared to OASIS-UROS due to the added inter-device synchronization. By physically connecting the sample clocks across devices, a truly synchronized data acquisition can be achieved with an arbitrary number of acquisition boards. Additionally, a migration of the firmware to ESP-IDF allows a major increase of the achievable sampling frequency to 100 kHz. This paper documents the hardware and software stack of OASIS-ERIS, and provides all materials necessary for reproduction. Further, the performance of OASIS-ERIS is tested against a commercial measurement system in an Experimental Modal Analysis campaign. The results show that OASIS-ERIS closely matches the performance of the commercial system, making it a viable replacement for academia and projects with tightly constrained budgets.
