I. Project Background

In precision quality control on SMT production lines, are you also facing the following challenges?Miniature components such as capacitors and inductors on PCBs are becoming smaller in size and more densely arranged.Limited by imaging principles, traditional 2D vision struggles to effectively distinguish the real height of components from background color differences, easily leading to missed detection of defects such as tombstoning, sideways standing, tilting, and even completely missing parts.This not only causes entire boards to be scrapped but may also result in defective products entering the market, ultimately damaging brand reputation.

Figure | 3D Camera Inspection for Missing Components on PCB

Don’t worry!In this issue, Mr. Shen brings you a practical case video of the Shenshi Intelligent SRI8060 3D Laser Profilometer used for detecting missing components on PCBs, helping you easily overcome these difficulties.

II. Solution

The Shenshi Intelligent SRI8060 3D Laser Profilometer features a high-speed scanning rate of 3,200–67,000 Hz, enabling instant capture of massive 3D point cloud data from the PCB surface on high-speed production lines.Meanwhile, the Z-axis linear accuracy of the 3D profilometer reaches ±0.02% F.S., maintaining precise height measurement across the full measuring range and truly restoring 3D topography.Combined with its excellent optical design, it achieves sufficiently high planar resolution to clearly define the edges of densely arranged tiny components.

Figure | 3D Point Cloud of PCB Components

Pads and component pins on PCBs are mostly made of highly reflective materials.Shenshi Intelligent integrated 3D laser profilometer supports a wide dynamic range, accurately capturing details in both highly reflective and low-reflective areas in a very short time.No adjustment of laser power or exposure time is required, ensuring stable imaging and overcoming inherent weaknesses of traditional vision in this scenario.

The 3D profilometer is equipped with a powerful inspection software platform and a flexible SDK, supporting rapid deployment of inspection processes and flexible adaptation to automation needs in various industries, providing enterprises with efficient and accurate inspection tools.

For more technical insights and in-depth application cases, follow the official Shenshi Intelligent video account.