Advanced Sine Software for real-time measurements of frequency response functions (FRFs) using stepped sine excitation for linearity studies and classical modal analysis.
Advanced Sine Measurements - 8412
Advanced Sine Measurements with BK Connect is designed for easy set-up, acquisition and validation of FRFs and related functions using stepped sine excitation.
Stepped sine measurement is a technique, where sine excitation and corresponding measurements are made at fixed frequencies one at a time. Stepped sine measurements are often used as a complement to, or instead of, broadband random measurements, as it can provide more accurate results and allows for linearity studies.
This application emphasizes scalability and high productivity in the most time-consuming aspects of stepped sine measurements:
BK Connect Advanced Sine Measurements is usually paired with BK Connect Modal Analysis Type 8420 and Advanced Modal Analysis Type 8420-A for a streamlined modal measurement and analysis system using a common, intuitive and highly customizable user interface. Combining Advanced Sine Measurements with Correlation Analysis Type 8421 adds test-FEA model correlation.
With BK Connect Advanced Sine Measurements you can perform stepped sine measurements with single- or multi-shaker excitation. For multi-shaker excitation, the calculation of FRFs and related functions requires more measurements. Different stepped sine series definitions are supported for the highest possible flexibility and time efficiency.
This application supports closed-loop control. To protect the test item and avoid too-high response levels during the measurements, alarm and abort levels can be specified. The levels are taken directly from the data acquisition system to avoid any potential software delays.
Data acquisition modules are displayed in an interactive graphic visualization that gives simple channel selection, transducer verification and a clear overview of any potential issues such as transducer overloads and cable breaks.
For larger set-ups, channels can be listed and sorted according to status for quick resolution of issues. Specialists will appreciate the high level of flexibility in test setup and execution as well as the strong interface to For larger set-ups, channels can be listed and sorted according to status for quick resolution of issues. Specialists will appreciate the high level of flexibility in test setup and execution as well as the strong interface to finite element (FE) models for test planning and validation.
