FARO Arm Positional Stability Time Tester
| Brand | FARO |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Positional Stability Time Measurement System for Portable CMM Arms |
| Quotation | Available Upon Request |
Overview
The FARO Arm Positional Stability Time Tester is a metrology-grade evaluation system designed to quantify the temporal behavior of portable coordinate measuring machine (CMM) arms during static settling—specifically, the time required for positional output to converge within a defined tolerance band following mechanical perturbation or repositioning. Unlike generic motion timing tools, this system integrates synchronized high-frequency laser tracker or photogrammetric reference data with native arm encoder streams to measure stability onset, decay envelope, and steady-state dwell duration under controlled thermal and mechanical boundary conditions. It operates on the principle of comparative kinematic validation: real-time pose residuals (Δx, Δy, Δz, Δα, Δβ, Δγ) are computed against traceable artifact-based ground truth, enabling ISO 10360-8–compliant assessment of stability dynamics in accordance with VDI/VDE 2617 Part 9 and ASME B89.4.22 Annex D.
Key Features
- High-resolution temporal capture: Synchronized sampling at ≥100 Hz across all six degrees of freedom (6DoF), supporting sub-millisecond resolution for onset detection and asymptotic convergence analysis.
- Traceable reference integration: Compatible with FARO Laser Tracker ION, QuantumS, or certified ball bar/artifact arrays calibrated per ISO 17025-accredited laboratories.
- Multi-condition stability profiling: Evaluates position stability time across temperature gradients (18–22 °C), mounting configurations (floor, bench, wall), and payload states (0 kg, 1 kg, 2 kg).
- Automated threshold definition: Configurable stability windows (e.g., ±1 µm, ±2 µm, ±5 µm RMS spatial deviation) aligned with user-defined acceptance criteria per internal QA protocols or ISO/IEC 17025 clause 7.8.2.
- Robust architecture: Industrial-grade enclosure rated IP54; EMI-shielded cabling; dual-clock synchronization (PTP IEEE 1588 v2) between arm controller and reference sensor.
Sample Compatibility & Compliance
The system supports all FARO DesignScanArm, QuantumS Arm, and Edge Arm models (v2.0 firmware and later). It does not require physical modification of the arm and interfaces exclusively via standard Ethernet/IP and USB 3.0 ports. All measurement procedures comply with ISO 10360-8:2022 (Acceptance and reverification tests for articulated arm CMMs), VDI/VDE 2617 Part 9 (Testing of coordinate measuring arms), and ASME B89.4.22-2015 (Performance evaluation of articulating arm CMMs). Raw stability time datasets include full audit trail metadata (timestamp, ambient T/RH, operator ID, calibration certificate ID), satisfying GLP and FDA 21 CFR Part 11 requirements when deployed within validated laboratory environments.
Software & Data Management
Stability evaluation is performed using FARO Metrology Suite v5.3+ with dedicated Positional Stability Module. The software generates time-series plots of residual magnitude, calculates 95% confidence intervals for mean stability time, and exports CSV/JSON reports containing raw pose residuals, derivative metrics (jerk, settling slope), and statistical summaries (mean, std dev, P99, max overshoot). All data files are digitally signed and timestamped; version-controlled revision history is retained for ≥10 years. Integration with LIMS platforms (e.g., LabWare, Thermo Fisher SampleManager) is supported via RESTful API and HL7-compliant messaging.
Applications
- Pre-shipment verification of new FARO arms prior to customer delivery.
- Periodic performance reassessment during preventive maintenance cycles (per FARO PM Schedule Rev. 4.1).
- Root-cause analysis of drift-related nonconformities in production metrology workflows.
- Validation of environmental mitigation strategies (e.g., thermal soak chambers, vibration isolation tables).
- Supporting ISO/IEC 17025 accreditation audits by providing documented evidence of measurement uncertainty contributors related to temporal instability.
FAQ
What defines “position stability time” in metrological terms?
It is the elapsed time from arm repositioning until all six pose parameters remain continuously within a user-specified spatial tolerance (e.g., ±2 µm) for ≥1.0 second, as verified against an independent traceable reference.
Can this system assess dynamic trajectory stability?
No—this instrument is purpose-built for static settling behavior. Dynamic trajectory accuracy (e.g., path deviation, corner rounding) requires separate testing per ISO 10360-8 Clause 7.3 and is evaluated using FARO’s Trajectory Accuracy Test Kit.
Is third-party calibration of the reference system required?
Yes. The laser tracker or photogrammetry system used as ground truth must hold current ISO/IEC 17025 calibration certificates with stated uncertainties applicable to the measurement volume and time interval.
Does FARO provide on-site installation and operator training?
Yes—standard rental packages include one-day on-site commissioning and two-person operator certification per FARO Training Standard TRN-ARM-STAB-2024.
