Laser Scales
BL57
Laserscale easily achieves measurement and control by ultra high resolution less than 1nm.
Sinusoidal wave of approx.138nm signal period is generated by a hologram scale with high diffraction efficiency and a high resolution detecting head based on grating interference method, strong against disturbance by air pressure or current, plus easy to install (BS series).
Features
Support a wide range of applications and offers the highest performance in its class. Ideal for precision stages,semiconductor inspection systems, precision processing machines, and liquid crystal manufacturing equipment.
BL57-RE
Achieves a measuring length of up to 1,360mm and offers the highest-level response speed and accuracy in its class.
With a head signal pitch of 400nm, interpolation error is virtually non-existent.
Built-in Reference point.
Applications :Precision measuring equipment, precision stages.
Compact size makes machine integration much easier
Theoretically unaffected by changes in temperature, humidity, air pressure and air movementUnparalled measuring stability achieved by use of low expansion glass
With a head signal pitch of 400nm, interpolation error is virtually non-existent.
Applications :High-accuracy microscopes, stages, measurement equipment
Specifications
| # | Specifications | Specifications |
|---|---|---|
| 1 | Model | BL57-RE |
| 2 | Type | F / G /H |
| 3 | Output signal form | A/B quadrature output , Analogue output |
| 4 | Detection method | Diffraction grating scanning system |
| 5 | Accuracy(at 20℃） | ±0.5μm(30～170mm)/±1.0μm(220～370mm)/±1.5μm(420mmor more) |
| 6 | Grating pitch | 1.6μｍ |
| 7 | Signal pitch | 400nm |
| 8 | Repeatability | 1 count of resolution or less |
Gallery
