Pin Height Measurement

About the Solution

The solution is designed for precision manufacturing to accurately measure and inspect the height of pins to ensure their installation and processing accuracy in circuit boards or connectors. The accurate inspection of the pin height can help ensure that the pins function properly in the circuit boards or connectors.

Inspection Targets

  • Pin height

    Pin height usually refers to the distance from the tip of a pin to a reference plane (such as the surface of the PCB board). The solution should be able to accurately measures the height of multiple pins to ensure that they meet the design specifications and guarantee the electrical performance and stability of mechanical engagement.

connector pins

Inspection Challenges

This pin height measurement solution can meet the following challenges:

  • Data acquisition: Due to the limited size of ​​the pin tip, it is difficult to obtain accurate point cloud data.

  • Measurement precision: High-precision measurements are required. Thus, effective data preprocessing is required to ensure the stability and accuracy of the results.

  • Layout scheme: Pins are deep, and the surrounding structures may block the camera’s view, resulting in poor imaging clarity during conventional flat scans.

Key Technical Indicators

The key technical indicators that the pin height measurement solution can meet are as follows:

  • Repeatability: < 30 μm

  • Cycle time: The cycle time of measurement should be no more than 2 seconds.

Solution Design

According to project requirements, the sensor head of a Mech-Eye LNX series laser profiler should be fixed above the pins. Make sure the sensor head is facing the pin tips and adjust its tilt to fit the working space and scan all pins as much as possible.

Hardware and Software Requirements

  • Mech-Eye 3D Laser Profiler + Mech-Eye Viewer software

    Quickly scans the surface of an object and generates surface data (including depth map and intensity image).

  • Mech-MSR software

    Obtains and processes surface data and calculates the pin height.

Deployment Process

Before deploying the solution, you need to get the Pin Height Measurement solution from Mech-MSR’s solution library. See Quick Guide to Solution Library to learn how to get the solution.

The deployment process of the solution is as follows:

operation workflow
  1. Data Acquisition

    Build the software and hardware environment to acquire and view image data.

  2. Data Processing

    Filter the surface data and obtain the surface data of pin tips.

  3. Start Measurement

    Measure pin height.

  4. Obtain Results

    Set acceptable ranges for pin height and obtain measurement and inspection results.


Next, you can get started with solution deployment.

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