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What are the different types of measuring light curtains available?
Measuring light curtains are primarily classified by beam spacing (resolution), detection distance, and output type. The beam spacing determines the smallest object size the system can detect — the smaller the spacing, the higher the precision.
Classification by Beam Spacing
| Type | Beam Spacing | Best For | Resolution |
|---|---|---|---|
| High Precision | 2.5mm | Small parts, fine measurement | ~5mm object |
| Standard Precision | 10mm | General dimension measurement | ~20mm object |
| Coarse Measurement | 20mm | Large object detection | ~40mm object |
DADISICK DK-QL Series Options
DK-QL32-2.5
2.5mm beam spacing, 32 optical axes, 77.5mm protection height, 0.3-1M detection. Ideal for small object measurement.
DK-QL Series 10mm
10mm beam spacing, 8-200 optical axes, 70-1990mm protection height, 0.3-6M detection. The most versatile range.
DK-QL Series 20mm
20mm beam spacing, up to 138 optical axes, 2740mm max protection height. For large-area measurement.
All DADISICK DK-QL models support RS485/RS232, 4-20mA, and 1-10V output modes, and come with TUV, UL, CE, RoSH, and GB certifications. The M12 connector ensures reliable industrial connectivity.
Selection Recommendation
For precision measurement of small components (e.g., PCB height, connector pins) → choose 2.5mm beam spacing.
For general industrial measurement (e.g., package dimensions, part sorting) → choose 10mm beam spacing.
For large object presence and profiling (e.g., vehicle dimensions, pallet detection) → choose 20mm beam spacing.