自动化仪器实现3D打印材料表面润湿性高效精准测量
Design and Development of an Automated Contact Angle Tester (ACAT) for Surface Wettability Measurement
- 用机器人+精密液滴控制实现全自动接触角测试
- 支持高通量检测，重复性与安全性符合工业标准
- 适合智能制造和新材料研发场景使用
自动化接触角测试仪（ACAT）是一种全集成的机器人工作单元，用于自动化测量3D打印材料的表面润湿性。系统通过可编程机器人、精确液体分配和模块化软硬件架构，克服了人工测量的局限性。其核心由三部分组成：（1）符合NEC 70、NFPA 79、UL 508A等工业标准的电气系统；（2）基于Raspberry Pi和Python的软件控制系统，含故障检测、GPIO逻辑及操作界面；（3）包含三轴笛卡尔机器人、气动驱动和精密液滴分配器的机械系统，整体封装于安全认证框架内。ACAT实现了高通量、自动化的表面表征，为智能制造和材料发现流程提供可靠平台。本文详述了设计方法、实施策略与系统集成过程。
原文摘要 · Abstract (English)
The Automated Contact Angle Tester (ACAT) is a fully integrated robotic work cell developed to automate the measurement of surface wettability on 3D-printed materials. Designed for precision, repeatability, and safety, ACAT addresses the limitations of manual contact angle testing by combining programmable robotics, precise liquid dispensing, and a modular software-hardware architecture. The system is composed of three core subsystems: (1) an electrical system including power, control, and safety circuits compliant with industrial standards such as NEC 70, NFPA 79, and UL 508A; (2) a software control system based on a Raspberry Pi and Python, featuring fault detection, GPIO logic, and operator interfaces; and (3) a mechanical system that includes a 3-axis Cartesian robot, pneumatic actuation, and a precision liquid dispenser enclosed within a safety-certified frame. The ACAT enables high-throughput, automated surface characterization and provides a robust platform for future integration into smart manufacturing and materials discovery workflows. This paper details the design methodology, implementation strategies, and system integration required to develop the ACAT platform.
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