ZOLIX TSAG Series Motorized Angular Positioning Stage

Overview

The ZOLIX TSAG Series Motorized Angular Positioning Stage is a high-precision optomechanical actuator engineered for controlled angular displacement of optical components in research-grade and industrial optical alignment systems. Based on the principle of constrained rotational kinematics via worm gear–driven curved rail translation, the stage converts rotary motor motion into highly repeatable, low-backlash angular tilt about a defined axis of rotation. Unlike conventional goniometers with planar pivot geometry, the TSAG employs an arc-shaped rolling guide that ensures the center of rotation remains fixed relative to the base — a critical requirement for multi-axis co-aligned optical systems such as interferometers, beam steering assemblies, and polarization characterization setups. Each stage is calibrated to maintain mechanical stability under static load (up to 4 kg horizontally) and thermal drift conditions typical of ambient-lab environments (20–25 °C, <60% RH). The design conforms to fundamental metrological requirements for angular positioning stages per ISO 10110-7 (optical component mounting) and supports traceable calibration protocols when integrated with certified encoder feedback.

Key Features

• Two-stage modular architecture: TSAG10-W (±10° range) and TSAG15-W (±15° range) are mechanically interoperable; stacked configurations enable coaxial dual-axis rotation about a common point — essential for gimbal-like beam redirection.
• High-resolution angular control: Achieves 0.00032° (TSAG10-W) and 0.00045° (TSAG15-W) position resolution under 8-microstep drive mode, enabled by precision gear reduction ratios (352:1 and 252:1 respectively).
• Backlash-minimized transmission: Imported elastic coupling decouples motor shaft eccentricity from gear train input; hardened worm/wheel pair ensures <0.005° repeatability (0.0043° and 0.0047° measured per model).
• Dual-mode operation: Integrated manual fine-adjustment knob allows tactile alignment without power — ideal for initial coarse setup or emergency recalibration.
• Robust mechanical interface: 65 mm × 65 mm top plate with standardized M4 and M6 threaded arrays (per ANSI/B47.1 pattern) enables direct mounting of mirrors, waveplates, or fiber collimators; compatible with ZOLIX’s full line of linear and rotary stages.
• Integrated safety: Mechanical end-stop switches prevent over-travel damage; optional firmware-enforced soft limits available via external motion controller.

Sample Compatibility & Compliance

The TSAG stage accommodates optical elements up to Ø50 mm diameter or rectangular substrates ≤60 mm × 60 mm, provided mass distribution remains within moment-of-inertia limits specified in ZOLIX Application Note AN-TSAG-01. It is routinely deployed in ISO Class 5 cleanroom-compatible optical benches and satisfies mechanical vibration immunity requirements per SEMI F20-0202 (vibration transmissibility < −30 dB at 10–100 Hz). While not intrinsically certified for FDA or IEC 61000-6-4 compliance, its signal interface architecture supports integration into GLP/GMP-aligned instrumentation platforms when paired with validated motion controllers (e.g., ZOLIX MCD-2000 series) that provide audit-trail logging per 21 CFR Part 11 Annex 11 guidelines.

Software & Data Management

The TSAG operates natively with ZOLIX’s ZMotion SDK (Windows/Linux/macOS), offering programmable API access via C/C++, Python, LabVIEW, and MATLAB. All position commands support absolute and incremental modes, with real-time status polling (position, error flag, temperature, motor current). When used with ZOLIX’s ZController-PRO unit, the system logs timestamped trajectory data (≥1 kHz sampling) to CSV or HDF5 files, enabling post-hoc analysis of settling time, overshoot, and hysteresis behavior. Firmware updates are delivered via signed binary packages verified through SHA-256 checksums — a requirement for regulated QA/QC laboratories performing periodic verification per ASTM E2917-22.

Applications

• Laser cavity alignment in tunable diode laser systems requiring sub-arcsecond pointing stability.
• Polarization optics adjustment in ellipsometry and Mueller matrix measurement platforms.
• Multi-degree-of-freedom beam steering in free-space quantum communication testbeds.
• Calibration reference stage for angular metrology labs verifying autocollimator accuracy per ISO 10110-15.
• Integration into automated optical inspection (AOI) systems where sequential angular scanning of micro-optics is required.

FAQ

Can the TSAG stage be operated in vacuum environments?

No — standard TSAG units are rated for ambient air operation only; vacuum-compatible variants (with lubricant-free bearings and outgassing-tested materials) require custom quotation.
Is encoder feedback available as a factory option?

Yes — high-resolution optical encoders (13-bit, ±1 arcsec linearity) can be retrofitted; contact ZOLIX Technical Support for mechanical and electrical integration specifications.
What motion controller models are officially supported?

ZOLIX MCD-2000, Newport ESP301, and Thorlabs KDC101 controllers are validated; third-party controllers must support pulse/direction TTL signals with ≥5 Vpp differential drive.
Does the stage support continuous rotation?

No — the TSAG is designed exclusively for limited-angle oscillation (±10° or ±15°); for 360° rotation, consider the ZOLIX TSR Series rotary stages.
How is thermal drift compensated during long-duration experiments?

The aluminum alloy housing (6061-T6) exhibits coefficient of thermal expansion (CTE) of 23.6 µm/m·K; users are advised to perform warm-up stabilization (≥30 min) and apply software-based offset correction using reference photodiode feedback loops.