MCL Think Nano Nano-LR200 Closed-Loop Piezoelectric Linear Translation Stage

Overview

The MCL Think Nano Nano-LR200 is a high-precision, closed-loop piezoelectric linear translation stage engineered for sub-nanometer positioning stability and exceptional motion fidelity in single-axis (X) displacement. Utilizing monolithic flexure-guided mechanics combined with proprietary PicoQ® capacitive position sensing, the Nano-LR200 delivers absolute, drift-free position feedback without hysteresis or mechanical backlash. Its operational principle relies on electrostrictive actuation within a preloaded ceramic stack, coupled with real-time sensor correction to maintain sub-0.4 nm resolution and repeatability across its full 200 µm travel range. Designed explicitly for environments where out-of-plane parasitic motion compromises measurement integrity—such as interferometric surface profiling, scanning probe microscopy alignment, and photonic chip packaging—the stage achieves less than 5 nm vertical (Z) and lateral (Y) deviation over the entire stroke, establishing a benchmark for axial purity in compact piezo stages.

Key Features

• Closed-loop operation with integrated PicoQ® capacitive sensors enabling absolute position encoding and sub-0.4 nm resolution
• Monolithic aluminum flexure architecture ensuring zero mechanical play, no lubrication, and vacuum-compatible operation (UHV-ready upon request)
• Out-of-plane motion <5 nm over full 200 µm travel—quantified via multi-axis laser interferometry per ISO 230-2 Annex B
• High dynamic performance: 500 Hz resonant frequency (unloaded), supporting rapid step-and-settle sequences in automated metrology workflows
• Low-profile form factor (25 mm height) optimized for multi-axis stacking and integration into confined optical breadboards or custom OEM enclosures
• Thermally stable design with coefficient of thermal expansion matched between actuator, sensor, and frame to minimize thermal drift (<0.5 nm/°C typical)

Sample Compatibility & Compliance

The Nano-LR200 accommodates standard 25 mm × 25 mm or custom-machined payloads up to 0.5 kg in horizontal orientation and 0.2 kg vertically. Its aluminum body (6061-T6) supports direct mounting via M3 or #4-40 tapped holes, and optional kinematic base plates are available for angular decoupling. The stage complies with RoHS 2011/65/EU and meets CE marking requirements for electromagnetic compatibility (EN 61326-1) and low-voltage safety (EN 61010-1). While not intrinsically rated for cleanroom Class 100 use, it is compatible with ISO Class 5 environments when operated with filtered air and static-dissipative handling protocols. For regulated applications—including FDA-regulated instrument subsystems—the Nano-Drive® controller supports audit trail logging and user-access controls aligned with 21 CFR Part 11 Annex 11 principles when configured with optional firmware modules.

Software & Data Management

Control is executed via the Nano-Drive® digital controller, which provides USB 2.0 and Ethernet interfaces, analog ±10 V input/output for synchronization with external DAQ systems, and programmable trigger I/O. Native drivers support LabVIEW™ (NI-VISA), MATLAB® (Instrument Control Toolbox), Python (PyVISA), and C/C++ SDKs. Position data streams at up to 10 kHz with timestamped metadata, enabling traceable acquisition in GLP/GMP-aligned workflows. Firmware supports configurable PID tuning, trajectory pre-compensation for non-linearities, and real-time error mapping based on factory calibration files (NIST-traceable certificates available upon request). All configuration parameters and motion logs are exportable in CSV or HDF5 format for third-party analysis and LIMS integration.

Applications

• Atomic force microscopy (AFM) coarse approach and scanner calibration
• Wafer-level alignment in semiconductor lithography tooling and mask aligners
• Interferometric surface topography mapping (e.g., white-light or phase-shifting interferometry)
• Precision optical cavity length control in ultra-stable lasers and gravitational wave detector prototypes
• MEMS device characterization requiring nanoscale positional repeatability under environmental perturbation
• Automated fiber optic coupling and photonic integrated circuit (PIC) testing platforms

FAQ

What is the difference between open-loop and closed-loop operation on the Nano-LR200?

Closed-loop mode uses integrated PicoQ® capacitive sensors to provide real-time position feedback and correction; open-loop mode bypasses sensing and relies solely on commanded voltage—introducing hysteresis and drift.
Can the Nano-LR200 be used in vacuum environments?

Yes—the standard version operates in high vacuum (10⁻⁶ Torr); UHV-compatible variants with metal-sealed connectors and outgassing-certified materials are available under custom order.
Is the Nano-Drive® controller validated for use in regulated pharmaceutical QC labs?

While the controller itself is not FDA-cleared, its audit trail, electronic signature, and configuration-lock features meet foundational requirements for Part 11 compliance when deployed within a validated system architecture.
How is angular error (roll/pitch/yaw) measured and verified?

Angular deviations are characterized using a dual-axis autocollimator traceable to NIST standards, with measurements repeated at five positions across the full travel range per ISO 230-1 Annex D.
Does MCL provide calibration certificates with traceability to national standards?

Yes—factory calibration reports (including linearity, repeatability, and orthogonality data) are supplied with each unit; NIST-traceable certificates are available as an optional add-on.