Data Acquisition

Preparation

Select the laser profiler model

According to the dimensions of smartphone midplates, it is recommended to use the Mech-Eye LNX-8080 laser profiler model. The field of view, accuracy, and measurement range of the device can meet most measurement needs. For detailed technical parameters of the device, see Technical Parameters of LNX-8080.
Mounting instructions
- Position of the sensor head: The sensor head of the laser profiler should be mounted directly above the target object, 250 mm away from the midplate’s bottom. Ensure that the sensor head can scan the whole midplate during each acquisition.
  
  If some areas of the midplate are difficult to capture completely, you can tilt the sensor head slightly to ensure the acquired image is clear and accurate.
- Mounting method: Securely mount the sensor head with a bracket.
  For more information on mounting, see Mounting and Connection.

The 3D measurement system mainly involves the following software products:

Please visit the Download Center to obtain the latest version of software.

It is recommended to use Mech-MSR 2.0.0 with Mech-Eye Viewer of version 2.4.0 or above.

Connect to the laser profiler.

Open Mech-Eye Viewer, find the device to be connected, and click the Connect button.
Acquire and view data.

The laser profiler obtains data by scanning an object line by line. For every line scan, a profile can be obtained, and profiles of all lines can be combined to generate an intensity image and a depth map.

See Acquire and View Data to learn how to use Mech-Eye Viewer to acquire high-quality data.
Tuning experience
Adjust the Exposure Time parameter to make sure the gray values of the target regions all fall within the range of 200–255. Underexposure may result in point cloud loss, while overexposure can lead to excessive flying points.

Perform multiple scans to ensure that the acquired image data is complete and free of prominent point cloud loss.
Connect to the laser profiler in Mech-MSR.

Click the 3D Laser Profiler Step and disable Virtual Mode in the parameter configuration panel. Then, click the Select camera button to connect to the laser profiler and select the calibration parameter group.
Obtain image data.

In the graphical programming workspace of Mech-MSR, click the single-run icon on the right side of 3D Laser Profiler Step to run the Step and trigger data acquisition. In this way, the image data can be obtained.

Next, you can continue processing image data in the Mech-MSR software.