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Sound Intensity

State of the art sound intensity measurement solution represents a powerful tool used for sound source location, their order ranking, and determination of emitted sound power.

 

IEPE
IEPE
Charge
Charge
Voltage
Voltage
Sound
Sound
Sound pressure
Sound pressure
Video
Video
High-speed video
High-speed video

Main Features

  • ISO 9614 COMPLIANT: Complies to Sound Intensity-based Sound Power calculation - Discrete points method (9614-1) and Scanning method (9614-2).
  • IEC 61672 CALIBRATED: Complete measurement chain of sound intensity solution can be calibrated according to IEC61672.
  • QUICK SOUND SOURCE IDENTIFICATION: Effortlessly identify noise sources with an easy-to-use interface.
  • NO NEED FOR SPECIAL ENVIRONMENT: Intensity-based solution enables you to obtain the sound power without the need for anechoic chamber or reverberation room.
  • ADAPTED FOR INDUSTRY: An adapted method for measuring big chillers and transformers makes it a perfect solution for large-scale industrial applications.
  • FEATURE COMPLETE MEASUREMENT: Everything you will ever need right out of the box, plug-and-play enabled.
  • WORKS ON EXISTING DEWESOFT HARDWARE: No need for additional HW modification, simply use our module with your existing DEWESoft hardware and intensity probe.
  • EASY TO EXTEND: Two additional analog inputs on SIRIUS mini allow you to plug in additional sensors.
  • FUTURE PROOF APPLICATION: free lifetime upgrades and support

Application Overview

Dewesoft Sound Intensity module offers a complete measurement solution, enabling the customer to use it for precise noise source location or sound power calculation, without the need for any special environment such as reverberation room or anechoic chamber. 

Sound power measurement is a universally recognized method especially established to compare devices for their Acoustic properties. Utilizing our fully-fledged and versatile solution, sound power measurements can be conducted regardless of the object of interest's shape or size with only a few requirements for the space or location of measurement.

Application Overview

This way sound power can be obtained in any type of sound field. Moreover, this method enables measurement of devices that require specific and complex mounting to operate, making it impossible to determine their sound power through other methods. In situ measurements have never been simpler, or as powerful. Perfect for fast troubleshooting and conformance to factory measurements and it also excels in complex devices with residual noise where key interest is a sound power of a specific machine.

When it comes to noise source location, no other solution is as simple and intuitive to use as Dewesoft sound intensity. Depending on the direction of sound waves travel (from microphone A to B or vice versa), our plugin will display different values (positive or negative) as noise source moves along the axis of the probe. When the probe is perpendicular to the noise source (located directly above it), the visual control inside Dewesoft X3 will toggle between positive and negative value. As this process is done for the horizontal and vertical alignment of the probe axis, the Sound.

ISO 9614-2 

Sound intensity scanning method (9614-2) for Sound power determination offers rapid and fluent measurement procedure. This holds especially true for large devices.

Dewesoft solution shines with a very clear visual control and on-screen guidance in regards to timing and scanning patterns. The most powerful aspect is the support for the buttons on the Sound intensity probe, making it completely operational by a single person. Scanning method is meant to be simple and fast. So that is exactly what we want you to experience.

ISO 9614-1

When more time is available or more detailed approach is necessary, segmentation method (9614-1) is the best possible option. Once an object is measured from all (usually 5) sides, Sound power can be calculated. However, with our solution, it is possible to do a more detailed analysis of the result. The software maintains the levels for each segment and further sub-segmentation is possible to extract additional information about the device under test.

On top of all this, Sound intensity probe buttons are supported for moving between segments and triggering start/stop of the measurement. Accompanied by a beautiful visual control with overlay on top of the object image, our solution gives an intuitive view of the results and key quality parameters of measurement.

Seamlessly Covering a Complete Frequency Range

The GRAS 50AI Intensity Probe comes with a selection of solid spacers for microphone separations ranging from 12 mm to 100 mm. The design of the probe enables spacers to be swapped without dismantling the probe as GRAS intensity probes have been designed to switch easily between different microphone spacers. The complete frequency range is thus covered easily and fast.

The useful frequency ranges for different microphone spacers are shown on the right.

One of a Kind, Expandable Solution. 

Two additional analog inputs on SIRIUS mini allows you to plug in additional sensors, eg. accelerometers. This allows you to simultaneously measure and display other parameters inside Dewesoft X3 software.

In conjunction with GRAS 12AR power module, we offer a plug and play solution for probes that require 200V polarisation voltage, making it possible to use existing equipment as well.

Portable & Adaptable

We are committed to offering the highest usability, therefore our advanced solution is completely portable. SIRIUS mini can simply be powered over USB from a laptop.

Where 200V polarization voltage is required and portability is in question, we offer packages with G.R.A.S. Intensity Power Module Type 12AB that makes our solution adaptable to existing intensity probes while still maintaining “off-grid” portability.

When powered by batteries, the power module is seamlessly integrated into our fully portable Sound intensity measurement chain, ensuring up to 11 hours of battery life.​​​​​​​

Carefully Calibrated

Modern measurement techniques and solutions all require a way to ensure the quality and compliance of the measurement chain. Dewesoft has recently put special efforts in this area.

Every Dewesoft SIRIUS DAQ device can thus be calibrated according to IEC 61672-3:2013. Our Sound intensity solution also includes procedures for single frequency pressure accuracy and also Phase calibration of the whole measurement chain using GRAS 51AC Sound Intensity Probe calibrator. In addition, we also offer a complete service of filter calibration according to IEC 61260: 2014 standard.

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