Application Background
Chromatic confocal sensors provide advanced non-contact measurement by combining confocal optics with spectral analysis. In vacuum applications, this technology is especially valuable because traditional contact methods, such as mechanical probes, may not be suitable or reliable.
The test focused on measuring the expansion of foam material in a vacuum environment. The pressure inside the chamber was about 10 Pa, and the evacuation process lasted around 60 minutes, so measurement needed to begin only after the pressure stabilized.
Application Challenges
In a vacuum environment, heat transfer efficiency is low. Sensor overheating can reduce measurement accuracy and may even affect stable operation, so thermal behavior and installation conditions must be carefully considered.
At the same time, the measurement system must maintain stable signal quality while the chamber pressure changes and the target material deforms.
Measurement Value
LightE chromatic confocal sensors enable non-contact displacement measurement in this demanding environment, helping capture material expansion without disturbing the target.
The test shows the potential of chromatic confocal technology for vacuum-related material testing, precision process monitoring, and applications where contact measurement is not practical.