The FRF (Frequency Response Function) Acquisition module from OROS is a dedicated software solution for structural dynamics testing, enabling precise measurement and analysis of FRFs using impact hammer or shaker excitation methods. It features a comprehensive tool panel within its FFT plug-in, allowing users to confidently acquire FRFs and coherence data, preview results, and validate measurements through various display options. The software supports advanced acquisition workflows, including Excel-based sequencer routes, accept/reject logic after averaging, and high-resolution real-time results. It is designed for both laboratory and field applications, facilitating bump tests, modal analysis, and troubleshooting of mechanical structures. The module streamlines the process of evaluating natural resonances and dynamic properties, supporting up to 1000+ channels for large-scale testing scenarios.

Key Features

Comprehensive FRF Acquisition Enables precise measurement and validation of Frequency Response Functions.

• Supports impact hammer and shaker excitation methods
• Real-time preview of FRF and coherence displays

Advanced Acquisition Workflow Streamlines test setup and data management.

• Excel-based sequencer for measurement routes and settings
• Accept/reject logic after averaging FRFs and coherence

High-Resolution and Multichannel Capability Handles complex and large-scale testing requirements.

• Up to 1000+ channels for real-time acquisition and recording
• True Zoom on X-function up to 128 times
• 25,601 lines real-time results

Flexible Signal Generation and Processing Adapts to various excitation and analysis needs.

• Multi-mode generators: Sine, Swept, Step, Random, Multi-sine, Chirp, Wav
• Smooth change generators: phase & amplitude ramps, emergency shut-down
• High-resolution generators: 10 µHz from 100 µHz to 40 kHz

Impact Testing Optimization Facilitates efficient and accurate impact measurements.

• Weighted window selection (uniform, force/response, hanning, etc.)
• Impact auto-range and synchronous time domain averaging
• Node path sequencer for tracking measurement points

Benefits

Reliable Structural Diagnostics Ensures accurate identification of dynamic properties and resonances.

• Validates mechanical designs and simulation models
• Detects and resolves vibration and resonance issues

Efficient and Scalable Testing Supports both small and large-scale structural analysis.

• Multichannel capability for complex structures
• Automated workflows reduce setup and analysis time

User-Friendly and Flexible Integration Accessible for both experts and non-experts.

• Intuitive interface with guided procedures
• Integrates with OROS analyzers and other modules