Accurion Sandwich Series Heavy-Duty Active Vibration Isolation Platform
| Brand | Accurion |
|---|---|
| Origin | Beijing, China |
| Model | Sandwich Series |
| Load Capacity | up to 1200 kg |
| Dimensions (L×W×H) | 800×800×130 mm to 1000×800×130 mm |
| Active Isolation Bandwidth | 0.6 Hz – 200 Hz |
| Degrees of Freedom | 6-DOF |
| Settling Time | ≤ 0.3 s |
| Power Supply | Standard AC Mains (No Compressed Air Required) |
| Compliance | Designed for ISO 14644-1 Class 5+ environments and compatible with GLP/GMP-aligned lab infrastructure |
Overview
The Accurion Sandwich Series Heavy-Duty Active Vibration Isolation Platform is an engineered solution for high-stability optical and nanoscale metrology applications where mechanical vibration compromises measurement fidelity. Unlike passive isolation systems—such as pneumatic or elastomeric supports—the Sandwich platform employs real-time, closed-loop active control across all six degrees of freedom (6-DOF) to suppress environmental disturbances ranging from building-borne ground motion (0.5–30 Hz), acoustic excitation (>20 Hz), and machinery-induced vibrations (10–500 Hz). Its core architecture integrates high-sensitivity piezoelectric accelerometers, low-latency digital signal processing, and high-force electromagnetic actuators to generate instantaneous counter-forces that nullify incoming disturbances. This principle—rooted in Newtonian force cancellation—is validated by sub-micron positional stability at 1 Hz and a typical intrinsic stiffness 20–30× greater than conventional passive optical tables at the same frequency. The platform is not merely a support surface but a dynamically stabilized reference plane, essential for interferometric microscopy, scanning probe instrumentation, ellipsometry, and 3D profilometry requiring sub-nanometer repeatability.
Key Features
- True 6-degree-of-freedom active vibration cancellation—simultaneous compensation in vertical (Z), lateral (X/Y), and rotational (pitch/yaw/roll) axes
- Wide operational bandwidth: 0.6 Hz (or 1 Hz, depending on configuration) to 200 Hz—enabling suppression of both low-frequency structural resonances and mid-frequency equipment noise
- Ultra-fast settling time: ≤ 0.3 seconds following step disturbance—critical for rapid instrument repositioning and automated metrology workflows
- No compressed air dependency: Powered solely via standard AC mains—eliminating infrastructure complexity, pressure regulation, and maintenance associated with pneumatic systems
- High static and dynamic load capacity: Configurations support 600 kg (Sandwich 800-4.0), 900 kg (Sandwich 1000-6.0), and up to 1200 kg (Sandwich 1000-8.0)
- Compact profile: Uniform height of 130 mm across all variants—designed for integration beneath large optical tables, wafer inspection tools, or industrial metrology stations
- Plug-and-play operation: Integrated control electronics with single-button activation and status LED feedback—no external tuning or calibration required during routine use
- Robust mechanical architecture: Precision-machined aluminum honeycomb base and top plate with optimized mass distribution to maximize inertial damping and minimize modal coupling
Sample Compatibility & Compliance
The Sandwich Series is compatible with a broad spectrum of high-resolution scientific instruments—including imaging ellipsometers (e.g., i4 Large), white-light and confocal 3D profilometers, atomic force microscopes (AFM), and laser interferometers—where positional drift or vibration-induced phase noise degrades data integrity. It meets mechanical interface standards for ISO 10360-compliant coordinate measuring machines (CMMs) and aligns with foundational requirements of ISO/IEC 17025 for testing laboratories. While not certified to specific regulatory frameworks (e.g., FDA 21 CFR Part 11), its deterministic, audit-ready control logic and absence of consumables support traceable, repeatable operation under GLP and GMP-aligned quality management systems. The platform’s electrical design complies with IEC 61000-6-3 (EMI emission) and IEC 61000-6-2 (immunity) standards for laboratory-grade equipment.
Software & Data Management
Each Sandwich unit operates autonomously via embedded firmware with no host PC dependency. Real-time diagnostics—including sensor health, actuator duty cycle, and RMS vibration amplitude per axis—are accessible through front-panel LEDs and optional USB-C serial interface for integration into facility monitoring systems. Logged data (timestamped, 1 kHz sampling) can be exported in CSV format for post-hoc spectral analysis using third-party tools (e.g., MATLAB, Python SciPy). Though no proprietary GUI is provided, the platform supports Modbus RTU over RS-485 for OEM integration into centralized lab automation platforms. Firmware updates are delivered via secure signed binaries, ensuring version control and reproducibility across multi-unit deployments.
Applications
- Nanoscale surface topography measurement using non-contact 3D optical profilers operating at <1 nm vertical resolution
- In-situ spectroscopic ellipsometry for thin-film thickness and optical constant characterization in semiconductor process development
- Low-noise laser Doppler vibrometry in acoustic and structural dynamics testing
- Long-integration-time interferometric imaging in gravitational wave prototype experiments or quantum optics setups
- High-magnification digital holographic microscopy requiring sub-pixel frame stability over acquisition windows >10 s
- Automated wafer-level metrology stations where robotic arm motion induces transient floor coupling
FAQ
Does the Sandwich platform require external air supply or vacuum lines?
No. It operates exclusively on standard AC power (100–240 VAC, 50/60 Hz) and contains no pneumatic components.
Can it be stacked or integrated beneath an existing optical table?
Yes. Its uniform 130 mm height and rigid mounting interface allow direct placement under standard optical tables (e.g., Newport, Thorlabs) or custom steel-frame structures.
What is the maximum payload for dynamic stability—not just static load rating?
Dynamic stability is maintained up to the rated static capacity (e.g., 1200 kg for Sandwich 1000-8.0) when center-of-mass remains within ±50 mm of platform center and total moment of inertia stays below 120 kg·m².
Is remote monitoring or network connectivity supported?
Basic telemetry is available via USB-C (virtual COM port); Ethernet or Wi-Fi interfaces are not included but can be added via third-party industrial gateways using Modbus RTU.
How does it compare to hybrid (active + passive) isolation systems?
Unlike hybrid systems that rely on passive elements for low-frequency roll-off, the Sandwich platform achieves flat attenuation down to 0.6 Hz without resonance peaks—delivering consistent performance across the entire target band without manual tuning.
