PIEZO STAGE
nPFocus250
nPFocus250 Piezo Z focus stage
The nPFocus250 is a piezo-driven Z-axis nanopositioning stage with 250 µm of travel for precision focus control in microscopy and optical imaging systems. Featuring closed-loop capacitive or strain gauge feedback, it delivers smooth, high-speed motion with excellent accuracy, repeatability, and minimal drift.
Its compact, high-stiffness design makes it ideal for confocal microscopy, surface profiling, and precision optical alignment applications requiring stable nanometer-scale focus positioning.
Related Products
Key Features
- 250 µm closed-loop travel range for extended Z-axis positioning
- Piezoelectric actuation for fast response and nanometer-level precision
- Closed-loop feedback options (capacitive or strain gauge sensors) for high accuracy
- Nanometer-scale resolution with low positioning noise (~5 nm typical)
- Fast settling time (~15 ms) for efficient focus adjustments
- Compact footprint (~63.5 × 50 × 33.5 mm) for easy system integration
- High stiffness and low vibration for stable imaging performance
- Supports microscope objective mounting for direct optical alignment
- Ideal for microscopy, photonics, and precision measurement applications
Specifications
| Attribute | Value |
|---|---|
| Part Number | 3715489 / 3715490 |
| Footprint | 63.5mm W 50mm D x 33.5mm H |
| Material | Stainless Steel |
| Maximum Load | 0.6kg |
| Max Force (Push/Pull) | 50N/10N |
| Stage Mass | 270g |
| Nanomotion Control | Z |
| Closed-loop Travel | 250µm |
| Open-loop Travel (-30 to 150 V) | 370um |
| Position Noise | 0.7nm / 5nm |
| Stiffness | 0.15N/µm |
| Resonant Frequency | 155Hz (with 120g load) |
| Settling Time | 15ms (with 120g load) |
| Linearity Deviation | 0.02% / 0.02% |
| Capacitance | 2.6µF |
| Integrated Sensor | Capacitive / Strain Gauge |
| Cable Length | 2m |
| Controller | LC.400 |
