Find your belt speed in the left column and the resolution interval you need along the motion direction in the header row. Each cell opens the full working: line period, exposure ceiling for one, a half and a quarter pixel of smear, the camera whose pixel pitch keeps the lens inside the PMS-LLC magnification band, and the pixel count that yields square sampling.
| Speed | 10 µm | 15 µm | 20 µm | 30 µm | 50 µm | 75 µm |
|---|---|---|---|---|---|---|
| 50 mm/s | 5 | 3.3 | 2.5 | 1.7 | 1 | 0.7 |
| 100 mm/s | 10 | 6.7 | 5 | 3.3 | 2 | 1.3 |
| 200 mm/s | 20 | 13.3 | 10 | 6.7 | 4 | 2.7 |
| 500 mm/s | 50 | 33.3 | 25 | 16.7 | 10 | 6.7 |
| 1000 mm/s | 100 | 66.7 | 50 | 33.3 | 20 | 13.3 |
| 2000 mm/s | 200 | 133.3 | 100 | 66.7 | 40 | 26.7 |
Line rate = speed ÷ resolution interval. The table is in kHz; multiply by 1000 for lines per second. A 2,000 mm/s line at 10 µm already demands 200 kHz, which is why wide, fast lines are usually split across two or three cameras rather than run on one.
The line rate fixes sampling along the motion direction. Sampling across the web is fixed by the lens: magnification = pixel pitch ÷ resolution interval. The POMEAS PMS-LLC 16K line-scan series covers 0.22X to 3.5X on an 82 mm image circle with an M72 mount, so the choice of camera pixel pitch decides whether your resolution target lands inside that band or outside it.
| Model | Magnification | Working distance | Resolving power |
|---|---|---|---|
| PMS-LLC026-14640M-M72 | 0.22X – 0.3X | 752 / 644 / 571 mm | 5 μm |
| PMS-LLC033-14640M-M72 | 0.3X – 0.37X | 482 - 571 mm | 5 μm |
| PMS-LLC05-14640M-M72 | 0.47X – 0.54X | 417 / 383 / 357 mm | 5 μm |
| PMS-LLC075-14640M-M72 | 0.7X – 0.85X | 304 / 286 / 267 mm | 5 μm |
| PMS-LLC1-14640M-M72 | 0.92X – 1.08X | 见规格书 | 5 μm |
| PMS-LLC133-14640M-M72 | 1.33X – 1.33X | 216 mm | 5 μm |
| PMS-LLC2-14640M-M72 | 1.75X – 2.25X | 179 - 690 mm | 5 μm |
| PMS-LLC3-14640M-M72 | 3X – 3.5X | 157 / 150 / 144 mm | 10 μm |
Line rate equals belt speed divided by the resolution interval you want along the motion direction. At 500 mm/s and 50 µm that is 500 / 0.05 = 10 000 lines per second, or 10 kHz. Keep both terms in the same unit — mixing micrometres with millimetres is the classic error.
10 kHz. One metre per second is 1 000 mm/s, and 1 000 mm/s ÷ 0.1 mm per line = 10 000 lines per second. The line period is 100 µs, so the exposure has to stay below 50 µs to hold a half-pixel of smear.
Half a pixel is the usual working target for measurement and one pixel for presence detection. Because smear equals speed × exposure, the acceptable blur converts directly into an exposure ceiling, which is the number this table gives for every cell.
Because magnification is what sets the sampling across the web. To keep pixels square, magnification = pixel pitch ÷ resolution interval. A 5 µm pitch camera at a 20 µm interval needs 0.25X; the same camera at 10 µm needs 0.5X.
motion blur: exposure time against conveyor speed, magnification table: sensor width × field of view, inline cycle time and station count, real working distances by model, PMS-LLC05 16K line-scan lens
