Microimage strain sensing (MISS) is a novel piston‐type sensor based on microscopic vision. In this study, optical disc slice is used as information carriers to improve MISS. There are multiple pits on the surface of an optical disc. By using machine vision algorithms, the pits can be converted into digital information, making them scales for recording displacements. By this means, we proposed a sensing method that combines high resolution, wide range, and strong robustness. The study measured displacement under different conditions. To address inevitable factors such as pixel drift, and manufacturing errors, corresponding compensation methods were provided. The results show that the measurements closely match those of the linear variable differential transformer, with a resolution of up to 20 nm and a range approaching the sensor size. Despite the sensor's dependence on machine vision, it demonstrates strong resistance to environmental factors such as brightness and angle. Combining compensation methods for pixel drift, and manufacturing errors, this sensor can be well‐applied in various working conditions.

中文翻译：

---

基于高分辨率、大测量范围的显微视觉位移传感

微图像应变传感（MISS）是一种基于显微视觉的新型活塞式传感器。本研究采用光盘片作为信息载体来改进MISS。光盘表面有多个凹坑。通过使用机器视觉算法，可以将凹坑转换成数字信息，使它们能够缩放以记录位移。通过这种方式，我们提出了一种兼具高分辨率、宽范围和强鲁棒性的传感方法。该研究测量了不同条件下的位移。针对像素漂移、制造误差等不可避免的因素，提供了相应的补偿方法。结果表明，测量结果与线性可变差动变压器的测量结果非常匹配，分辨率高达 20 nm，范围接近传感器尺寸。尽管传感器依赖于机器视觉，但它对亮度和角度等环境因素表现出很强的抵抗力。结合像素漂移和制造误差的补偿方法，该传感器可以很好地应用于各种工作条件。