Acoustic Shape
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Sound Intensity Probes
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Particle Velocity Sensors
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Sound Sources | VVS
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Portable Measurement Devices
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Sound Source Localization
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Acoustic Material Testing
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Sound Power & Source Ranking
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End of Line testing software
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Acoustic Testing & Analysis Software
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Sensor Arrays
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Preamplifiers & Frontends
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Accessories
TRANSIENT NOISES AND NON-STATIONARY MEASUREMENTS
Acoustic Shape enables to combine multiple measurements that share a common reference signal into one single project. As a result, users can localize complex sound sources with precision and also quantify noise effectively, even under time-varying operational conditions. This module has recently joined the Velo platform, expanding the usage of near-field acoustic data from 2D to 3D. As with Scan&Paint 3D, all test data is visualized around a 3D model of the device under test.
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Scientific Papers | Characterizing the noise emission of an electric powertrain using 3D sound intensity
Scientific Papers | Sound pressure prediction of an electric powertrain performed in an engine dyno test cell using 3D sound intensity
Scientific Papers | In-situ sound power estimation using scattered sound intensity datasets
Features
- 3D visualization of:
· Sound intensity vectors
· Particle velocity vectors
· Sound pressure distribution
· Color-wrapping planes - Broadband Solution | 20Hz - 10kHz
- Multi-capture synchronization using reference signals
- Automatic 3D tracking of the array position
- Frequency-independent spatial resolution
- Order Tracking and order analysis tools
- Flexible configuration of a measurement grid
Curious About Pricing Details?
Integrating Multiple Measurements for Enhanced 3D Sound Analysis
Acoustic Shape allows you to automatically synchronize and track the position of a 3D probe array, facilitating fast and efficient point-by-point measurements. This acoustic testing solution is especially useful for exploring non-stationary problems, visualizing transient noises or varying sound fields by using a reference signal to synchronize multiple captures. The software delivers real-time process control and noise visualization tools, along with a wide range of analysis options. This empowers users to better understand and interpret how the spatial distribution of sound emission fluctuates under varying operational conditions.
CUSTOMIZABLE ACOUSTIC VECTOR SENSOR ARRAYS
Acoustic Shape is a flexible solution due to its versatile array configurations. It accommodates from single probe setup to more advanced arrangements including 5 or even 12 acoustic vector sensor probes, meeting a wide range of customer requirements.
Having a higher number of probes reduces the total measurement time required to perform a full source characterization. Furthermore, the large array configuration also support variable distance adjustments for each of the 12 probes, allowing to get closer to the target surface at certain locations within the grid. On the other hand, using less sensors lowers the complexity of the full testing system, while maximizing the flexibility of the solution, fully compatible with Scan&Paint 3D software.
Acoustic Data Analyis
- ORDER ANALYSIS OVER RPM
- SPECTRAL ANALYSIS OVER RPM
- SPECTRAL ANALYSIS OVER TIME
- SPECTRAL ANALYIS OVER NON-ROTATIONAL REFERENCES
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Our system integrates a comprehensive order analysis module designed to quantify the vibro-acoustic output of rotational components, with or without a tacho sensor. The Order Tracking Module enables the characterization of rotating machinery by analyzing the frequency content of the captured signals relative to a reference rotation speed. A standout feature of this module is its ability to extract rotational orders without requiring the RPM signal. Users can identify and highlight a known order in the spectrogram to use as a reference. An advanced algorithm extracts an effective RPM reference that can then be employed to determine the order spectrum of the captured data, resulting in 3D sound visualizations dynamically changing according to the selected RPM and order(s) of interest.
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Provided that a reference tacho or RPM signal is available (or extracted), sound pressure, 3D particle velocity, and 3D sound intensity dynamic results can be calculated for different rotating operational conditions. This processing method is very effective for localizing local issues that do not necessarily depend on the rotational speed of the device under tests, such as structural modes or cavity resonances.
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This post-processing method allows you to perform a detailed analysis of a single capture to investigate how the radiated sound pressure, particle velocity, or sound intensity field changes over time. A reference signal is not required for this type of analysis. Data from multiple captures can be combined by selecting multiple time intervals of interest and sticking together the vibro-acoustic data captured at different locations.
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Machinery that can be operated with repeatable cycles independent of a rotational excitation (e.g. temperature variations, torque or acceleration) can also be used in combination with Acoustic Shape. This processing method supports the usage of a non-rotational reference signal to synchronize multiple captures and calculate the resulting 3D acoustic radiation visualizations in terms of sound pressure, particle velocity, or sound intensity. This approach is very useful to study how noise is radiated with respect to the chosen reference stimuli, such as temperature variations of a product, changes in position, or loading forces.
Video Export
Enhance your understanding of non-stationary sound visualization with our Acoustic Shape solution, where the dimension of time plays a crucial role in comprehending the behavior of sound. Recognizing this, our platform is designed with a powerful video export functionality, allowing for the dynamic representation of sound over time. This feature enables a more nuanced analysis and presentation of auditory data, making it easier to illustrate changes and patterns in sound behavior effectively.
Robotic Acoustic Scanner
USP regular | 3D Acoustic Vector Sensor
Scan&Paint 3D