Related Manuals for BRUEL & KJAER BK Connect 9712-W-FEN
Summary of Contents for BRUEL & KJAER BK Connect 9712-W-FEN
- Page 1 USER MANUAL BK Connect Acoustic Camera An integrated solution consisting of: Acoustic Camera Type 9712-W-FEN and BK Connect Array Analysis Type 8430 BE 0011 – 13 English...
- Page 3 BK Connect Acoustic Camera an integrated solution consisting of: ACOUSTIC CAMERA TYPE 9712-W-FEN and BK CONNECT ARRAY ANALYSIS TYPE 8430 User Manual BE 001113 www.bksv.com August 2019...
- Page 4 Health and Safety Considerations Electrical Hazards This apparatus has been designed and tested in accordance Warning: Any adjustment, maintenance and Safety with IEC/EN 61010 – 1 ANSI/UL 61010 – 1 repair of the open apparatus under voltage must Requirements for Electrical Equipment for Measurement, be avoided as far as possible and, if unavoidable, Control and Laboratory Use .
- Page 6 Brüel & Kjær has made every effort to ensure the accuracy of Brüel & Kjær and all other trademarks, service marks, trade the information contained in this document. No responsibility names, logos and product names are the property of is accepted for any errors or omissions herein. It is the Brüel &...
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Page 7: Table Of Contents
Contents CHAPTER 1 Introduction..........................1 What is the Acoustic Camera?....................1 System Requirements....................... 2 Using the Software with Other Arrays than Hand-held Array WA-1761-001......3 Using the Array with BK Connect Acoustic Camera Applet ............4 CHAPTER 2 Set Up the System........................5 System Description ........................ -
Page 9: Introduction
Chapter 1 Introduction What is the Acoustic Camera? BK Connect™ Acoustic Camera is a complete system for real-time noise source identification (NSI). It is a versatile tool designed for use in the aerospace and automotive industries, but has applications in many other industrial environments. BK Connect Acoustic Camera is equally suited to NSI troubleshooting in aircraft;... -
Page 10: System Requirements
BK Connect Acoustic Camera – User Manual Getting Started with the System This manual is intended to help you get started with the BK Connect Acoustic Camera system. It will show you how to: Set up the hardware: array, front end, PC and tablet (see Chapter 2) •... -
Page 11: Using The Software With Other Arrays Than Hand-Held Array Wa-1761-001
CHAPTER 1 Introduction 1.2.2 Required Brüel & Kjær Software for Data Acquisition • All of the following BK Connect applications: – BK Connect Array Analysis Type 8430-X – BK Connect Data Viewer Type 8400-X – BK Connect Hardware Setup Type 8401-X –... -
Page 12: Using The Array With Bk Connect Acoustic Camera Applet
BK Connect Acoustic Camera – User Manual Using the Array with BK Connect Acoustic Camera Applet Acoustic Camera Array System Type 9712-W-FEN supports BK Connect Acoustic Camera Applet Type 8493-A-N-SYS. Unless otherwise noted, the interface and functionality of the two software platforms are identical. -
Page 13: Chapter 2 Set Up The System
Chapter 2 Set Up the System System Description This manual describes the standard system as shown in Fig.2.1. Fig.2.1 BK Connect Acoustic Camera system 9712-W-FEN WA-1764-W-001 Hand-held Array Acous c Camera Tablet Windows, iOS or Android (not supplied) LAN-XI: 1 × 3660-C-100 Frame 1 ×... -
Page 14: Unpacking The Box
BK Connect Acoustic Camera – User Manual • BK Connect Applications – Type 8430: BK Connect Array Analysis – Type 8400: BK Connect Data Viewer – Type 8401: BK Connect Hardware Setup – Type 8401-A: BK Connect Hardware Setup (advanced) •... - Page 15 CHAPTER 2 Set Up the System 2) Take the LAN-XI front-end frame out of the box. ⚑ Hint: The modules are pre-installed, so you will need to lift the frame with both hands. 3) Take the LAN cable out of the box and connect it to the LAN connector at the back of the frame.
- Page 16 BK Connect Acoustic Camera – User Manual Fig.2.4 Beamforming measurements with and without reflective plate on hand-held array Top: With plate Bottom: Without plate Without the reflective plate, measurements can be made in the near field using the acoustic holography algorithm. As a comparison, a typical measuring distance for beamforming is around 40 cm, while a typical measuring distance for acoustic holography is around 5 cm (see examples in Fig.2.5).
- Page 17 CHAPTER 2 Set Up the System Fig.2.5 Left: The hand-held array with the reflective plate during a beamforming measurement Right: Without reflective plate during an acoustic holography measurement Removing the Reflective Plate 1) Carefully unscrew the three nuts that hold the plate in place. 2) Lift the plate off the array.
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Page 18: Setting Up The Hardware
BK Connect Acoustic Camera – User Manual Setting Up the Hardware 1) Click the Power switch at the front of the frame to switch on the front end. The Battery LED on the frame will light up green and the display on the first module (the master module) will switch on. -
Page 19: Setting Up The Software
CHAPTER 2 Set Up the System Setting Up the Software 2.4.1 Installing the Software and Hardware Driver 1) Open the small box labelled Type 8430. This contains the BK Connect software. 2) Attach the USB key to your PC and follow the Software Installation instructions accompanying the USB key. - Page 20 BK Connect Acoustic Camera – User Manual Performing Microphone Detection: ✐ Please note: See the software’s online help for detailed instructions on microphone detection. 1) Go to Set Up > Microphone Detection in the software. 2) Select the Array from the drop-down list. 3) Click .
- Page 21 CHAPTER 2 Set Up the System in the display area and click Rescan. 2) Click Fig.2.8 Look for devices using the Image Setup dialog If there still is no camera image, you may need to re-install the camera driver. Go to the software USB key or www.bksv.com/en/Service/downloads (Drivers for uEye array cameras) and...
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Page 22: Calibration
BK Connect Acoustic Camera – User Manual 1) Go to your PC’s programs list and click BK Connect > BK Connect Front-end Setup. 2) The program will open and begin searching the LAN for LAN-XI frames and modules. When done, read through the information given and click OK. 3) It will open in the Configuration window, which may be empty. -
Page 23: Setting Up For Tablet Use
CHAPTER 2 Set Up the System Setting Up for Tablet Use Mounting the Tablet The hand-held array’s built-in tablet holder will work with a variety of tablet sizes and manufacturers. The recommended size is 20 × 13 cm (8 × 5 in). Best Practice: When using the hand-held array without the reflective plate (as for acoustic holography measurements), noise will reflect off of the tablet. - Page 24 BK Connect Acoustic Camera – User Manual...
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Page 25: View, Record And Playback
Chapter 3 View, Record and Playback With hardware and software all set up and an image overlaid a contour map in the Array Measurement task, you are ready to start using the Acoustic Camera. You can measure and record in Streaming mode then view your recordings in Playback mode. Use the controller to switch between the two modes. -
Page 26: Streaming
BK Connect Acoustic Camera – User Manual Streaming The software allows you to view and record sound source data collected by the Acoustic Camera. Source maps and video images are superimposed to create an acoustic map. Continuous buffering provides real-time images that enable you to quickly pinpoint problem areas. 3.1.1 Aim, Shoot and Measure With the hand-held array in one hand, aim the array at the area of interest (towards the proposed... - Page 27 CHAPTER 3 View, Record and Playback 3.1.2 Editing Measurement Parameters Fig.3.2 Toolbar with measurement parameters In the toolbar, edit the following: Distance: Enter the distance (in metres) between the array and the calculation area • ⚑ Hint: The distance must agree with the chosen algorithm. If you change the distance, the algorithm will automatically change.
- Page 28 BK Connect Acoustic Camera – User Manual 3.1.3 Editing the Contour Map Fig.3.3 The central display showing an image of the area under test with a contour map overlay The display of the contour map is controlled via buttons to the left of the display: •...
- Page 29 CHAPTER 3 View, Record and Playback The contour plot’s z-axis scale adjusts to the type of output: This shows the range covered by the contour plot for parameters such as Pressure Contribution This shows the range covered by the contour plot for Intensity displays, where the left range shows positive intensity (dB+) and the right range shows negative intensity (dB–)
- Page 30 BK Connect Acoustic Camera – User Manual Fig.3.5 The Wind Correction Setup dialog 4) Close the dialog box to apply. ✐ Please note: BK Connect Acoustic Camera Applet Type 8493-A-N-SYS does not support the application of wind speed corrections. 3.1.4 Editing the Spectrum Fig.3.6 Spectrum area...
- Page 31 CHAPTER 3 View, Record and Playback • With the delta cursor, fields and two sliders are available to define the frequency Start Stop range If Synthesis in FFT Setup is set to , the slider scale is linear. If Synthesis is set to None Octave 1/3-...
- Page 32 BK Connect Acoustic Camera – User Manual 3.1.7 Remote Control With a tablet mounted on the array and remote control enabled via third-party software, click in the toolbar to toggle to Tablet mode. You can then view and control the measurement away from the PC and enables one person to operate the entire system.
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Page 33: Playback
CHAPTER 3 View, Record and Playback Playback Playback mode allows you to view all stored recordings. Typically, you would view a recording immediately after measurement to determine if you need to investigate and record further. 1) From the folder in the Project Tree, drag a recording (default name ) to Recordings Recording #... - Page 34 BK Connect Acoustic Camera – User Manual Select a region in the spectrogram to view in the contour plot. Selecting higher levels will • help you determine the source of the noise or whether the noise came from an external source (for example, a door slam might cause the contour plot to suddenly move to the edge of the measurement mesh) •...
- Page 35 CHAPTER 3 View, Record and Playback Fig.3.10 RPM value The Order Setup dialog. Note, the rpm value is in the upper right corner of the screen 3.2.2 Taking Screenshots or Screen Recordings In Playback mode, you can save a screenshot or screen recording to document and share with others. •...
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Page 37: Save And Post-Process Recordings
Chapter 4 Save and Post-process Recordings Saving Measurement Recordings Recordings are automatically stored in the Project Tree under the default name Recording # Fig.4.1 Example of recordings saved in the Project Tree To give a recording another name, right-click and select Rename. 4.1.1 Saving the Project to Database 1) Click... - Page 38 BK Connect Acoustic Camera – User Manual 4.1.2 Exporting the Project to File You may also want to share the project (with or without data) with other licenced BK Connect users. To do this, you must export the project to file: 1) Click the main menu icon and select Manage Projects.
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Page 39: Post-Processing Recordings
CHAPTER 4 Save and Post-process Recordings Post-processing Recordings Post-processing of stored data can be performed with either the BK Connect data processing software or PULSE (NSI) Array Acoustics Post-processing software 4.2.1 Post-processing in Another BK Connect Application You can post-process the recording in other BK Connect applications for which you have licences. - Page 40 BK Connect Acoustic Camera – User Manual Open Project – to open a saved data processing project in the database • Fig.4.5 Open Project interface showing all projects on the database saved by this user You can: – Locate the project you want to use and click to open Enter in the Search Project field, the name of the project (this is handy if the project –...
- Page 41 CHAPTER 4 Save and Post-process Recordings 3) With the data processing project open, click in the main toolbar to search for the array analysis data you saved in the BK Connect database Use the fields to narrow your search. Search on a project, test, setup, action or Search criteria data level, or a combination of these.
- Page 42 BK Connect Acoustic Camera – User Manual To transfer data to an Array Acoustics database: 1) In BK Connect Array Analysis, go to the Array Measurement task and click the collapsed Data Transfer window to open it. Fig.4.8 Cl ick in t hi s E x pa nded v i ew Opening the Data area t o ex pa nd...
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Page 43: Use Other Arrays With The Software
Chapter 5 Use Other Arrays with the Software BK Connect Array Analysis Type 8430 is a stand-alone software platform for viewing, recording and replaying sound source data collected with Acoustic Camera Type 9712-W-FEN. However, the software can also be used with other Brüel & Kjær planar, irregular arrays and regular grid arrays including: •... -
Page 44: Supported Brüel & Kjær Hardware
BK Connect Acoustic Camera – User Manual Supported Brüel & Kjær Hardware Supported Arrays Table 5.1 lists all supported Brüel & Kjær arrays, their frequency ranges and resolutions at the optimal measurement distance. Table 5.1 Resolution at BK Connect Array Number Diameter Freq. -
Page 45: Microphone Detection
CHAPTER 5 Use Other Arrays with the Software ® Built-in Logitech • cameras in Brüel & Kjær sliced wheel arrays The default camera until spring 2014 • UI524x CP-C, with LAN connector Optional accessory for sliced wheel arrays Microphone Detection Microphone detection (that is, detecting which array microphone is connected to which channel of the front end) is required: •... - Page 46 BK Connect Acoustic Camera – User Manual...
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Page 47: Specifications
Chapter 6 Specifications Specifications – BK Connect Acoustic Camera System Hand-held Array † Consisting of: 30-ch. Hand-held Array WA-1764-W-001 • Hardware Frequency Range: 140 Hz to 12 kHz – Acoustic Camera Type 9712-W-FEN • Near field, without reflective plate (SONAH): 140 Hz to 3 kHz •... - Page 48 BK Connect Acoustic Camera – User Manual PTP Synchronization (with 1 Gigabit LAN Switch): Typical Connector: SMA sample synchronization better than 200 ns (approx. ±0.07° @ 1 kHz, ±2° @ 25.6 kHz). Tested with: Two connectors type RJ45 8/8, optionally Neutrik® •...
- Page 49 CHAPTER 6 Specifications Specifications – LAN-XI Modules 6-channel LAN-XI Input Module Type 3050-A-060 INPUT CHANNELS (DYN-X) Frequency Range DC to 51.2 kHz (3050 and 3160) DC to 102.4 kHz (3052) Lower frequency range can be set in software Sampling Rate 131 ksamples/s A/D Conversion 2 ×...
- Page 50 BK Connect Acoustic Camera – User Manual INPUT CHANNELS (DYN-X) (CONTINUED) Noise Guaranteed Typical Input (Input terminated by Range Lin* 1 kHz Lin* 1 kHz 50 Ω or less) Signal level <316 mV peak 10 Hz to 25.6 kHz <4 μV <25 nV <3 μV <19 nV...
- Page 51 CHAPTER 6 Specifications INPUT CHANNELS (DYN-X) (CONTINUED) Channel-to-channel Match Guaranteed Typical (10 V input range) 0.2 dB from lower frequency peak Maximum Gain Difference is defined as the limit, f , to 51.2 kHz ±0.05 dB –0.1 dB frequency of the (0.4 dB at –10% filter high-pass filter frequency)
- Page 52 BK Connect Acoustic Camera – User Manual INPUT CHANNELS (DYN-X) (CONTINUED) Analogue Special Functions Microphone Charge Injection Calibration: All modules with 7-pin LEMO support CIC via dedicated application software and OLE interface Transducers: Supports IEEE 1451.4-capable transducers with standardized TEDS (up to 100 m (328 ft) cable length) Overload Detection Signal Overload: Adjustable detection level ±1 V to ±10 V...
- Page 53 CHAPTER 6 Specifications OUTPUT CHANNELS (CONTINUED) Noise Guaranteed Typical μV (nV/Hz) in 50 kHz bandwidth up to 316 mV 1 μV (4.4 nV/Hz) 0.5 μV (2.2 nV/Hz) peak up to 10 V 10 μV (44nV/Hz) 5 μV (22 nV/Hz) peak Harmonic Distortion Products 0 –...
- Page 54 BK Connect Acoustic Camera – User Manual 12-channel LAN-XI Module Type 3053-B-120 INPUT CHANNELS Frequency Range DC to 25.6 kHz or any range defined by high-pass filters and by software decimation set in “frequency span” Sampling Rate 65.5 ksamples/s Data Transfer 24 bit Input Voltage Range peak...
- Page 55 CHAPTER 6 Specifications INPUT CHANNELS (CONTINUED) Spurious-free Dynamic Range Input Typical re full scale input Range (input terminated by 50 Ω or less) 130 dB peak Spurious-free Dynamic Range is defined as: The ratio of the rms full scale amplitude to the rms 130 dB value of the peak non-harmonic spectral 10 V...
- Page 56 BK Connect Acoustic Camera – User Manual INPUT CHANNELS (CONTINUED) Supply for Microphone Preamplifiers Not available Supply for Microphone Polarization Not available Supply for CCLD 3.6 mA from 24 V source If any CCLD-coupled channel is paralleled with another channel, this must also be CCLD-coupled.
- Page 57 CHAPTER 6 Specifications Compliance with Standards (For environmental specifications and compliance with standards for PCs, see the specifications given by their respective manufacturers) Hand-held Array WA-1764-W-001 The CE marking is the manufacturer's declaration that the product meets the requirements of the applicable EU directives RCM mark indicates compliance with applicable ACMA technical standards –...
- Page 58 BK Connect Acoustic Camera – User Manual 5-module LAN-XI Front-end Frame Type 3660-C-100, Input/Output Modules Type 3050 and 3053, and Battery Module Type 2831-A The CE marking is the manufacturer’s declaration that the product meets the requirements of the applicable EU directives RCM mark indicates compliance with applicable ACMA technical standards –...
- Page 59 CHAPTER 6 Specifications EFFECT OF RADIATED AND CONDUCTED RF, MAGNETIC Vibration: 5 – 500 Hz, 12.7 mm, 15 m/s FIELD AND VIBRATION Input measured with shorted input. All values are rms. Radiated RF: 80 – 2700 MHz, 80% AM 1 kHz, 10 V/m Conducted RF immunity on all channels is only guaranteed Conducted RF: 0.15 –...
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Page 61: Index
Index Calculation mesh ............20 Calibration ..............14 Acoustic camera, definition ........1 Camera Acoustic holography ........3, 8, 19 specifications ...........39 Acoustic map ............18 supported ............36 Adapter ..............14 Camera Setup ............20 Algorithm ............... 19 Channels ............35, 36 Applet ............ 4, 22, 31, 33 Colour bar ..............21 start-up ............ - Page 62 Display array ............20 Include imported data ........30, 32 Distance ..............19 Include processed data ........30, 32 measurement ........... 8 Input modules ............ 5, 41 optimal ............36 Install software ............11 Driver reinstallation ..........13 LAN cable Edit range ..............
- Page 63 Microphones ............. 5, 39 import from file ..........32 cable connection ..........10 save ..............29 reference ............37 PULSE Array Acoustics ........31, 33 unpacking ............6 Mobile measurements ..........6 Monitoring for Wind Tunnels Option BZ- Range 8542 ............... 21 edit ..............21 Mount tablet ............
- Page 64 Software applications ..........6 Type 3053-B-120 ..........5, 46 Software licences ..........11 Type 3660-C-100 ..........5, 40 SONAH ..............19, 36 Type 4231 .............. 14 Sound calibrator ............ 14 Type 8400 ..............6 Sound power ............18, 25 Type 8401 ..............6 Source behind the array ..........
- Page 66 © Brüel & Kjær. All rights reserved. www.bksv.com...