本文介绍用最简单的计算机(单板机)配合摄像机测量低能电子衍射强度特性的装置。这台装置具有结构紧凑、原理简易、操作方便和价格低廉等特点。它不仅在测量低能电子衍射强度特性方面性能良好,也适应于其它衍射图案的强度分析。最后介绍用这台仪器测量的部分实验结果。 This article describes a device that measures the intensity of low-energy electron diffraction using the simplest computer (single-board computer) in conjunction with a video camera. This device has the advantages of compact structure, simple principle, easy operation and low price. It not only performs well in measuring the intensity characteristics of low-energy electron diffraction but also is suitable for the intensity analysis of other diffraction patterns. Finally, we introduce some experimental results measured by this instrument.