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EMI Automotive Band
Evaluation
Application Note
Products:
R&S
EMC32
|
R&S
EMC32-K51
|
EMI Automotive Band Evaluation
extension is an on-board EMI
measurement sequence in broadband and
communications frequency bands for
automotive and aerospace applications.
This application notes shows how to
configure, run, and automatically
document tests in a sequence coming with
EMC32-K51.
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Table of Contents
Summary of Contents for R&S EMC32
- Page 1 EMI Automotive Band Evaluation Application Note Products: R&S EMC32 R&S EMC32-K51 EMI Automotive Band Evaluation extension is an on-board EMI measurement sequence in broadband and communications frequency bands for automotive and aerospace applications. This application notes shows how to...
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Page 2: Table Of Contents
Test Control Bar ..................30 Test Results ....................34 Creating Reports ..............35 Literature................41 Additional Information ............41 Short history of EMC32-K51 ..............41 Switching to Measurement Mode .............41 Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 2 01.00... - Page 3 Table of Contents Ordering Information ............43 Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 3 01.00...
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Page 4: Overview Emi Automotive Band Evaluation
EMI Automotive Band Evaluation Test Template now is optimized to generate the particular kind of test demanded by the standards with extreme flexibility in configuration of the test and the related test report without usage of the EMC32 Sequencer. EMI Automotive Band Evaluation Test Template ... -
Page 5: Configuration Of Emi Automotive Band Evaluation Test
We select the test procedure for on-board emissions measured with build-in car antennas Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 5 01.00... -
Page 6: Populating The Device List
Figure 4). EMC32-K51 provides a conducted and a radiated emission test with the same icons in the Test Setup as we know from other EMC32 extensions. The difference is that the hardware setup is not found in the System folder below the sub- folder Hardware Setups but is integrated into the EMI Automotive Test Template itself. -
Page 7: Emi Automotive Test Template Editor Explained
Figure 6: OSP with settings for paths as an example for a switch unit 2.2 EMI Automotive Test Template Editor explained In order to create a new test case a Template Editor shall be configured according to the test requirement. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 7 01.00... -
Page 8: How To Open A New Emi Automotive Template In The Editor
Follow the steps mentioned below in order to create a new EMI Automotive Test Template. Open an existing EMI Automotive Template Editor via the EMC32 file explorer. i.e. System Folder >> Test Templates >> EMI Automotive: Figure 7: A mouse click on an existing file open the template editor with this EMI... - Page 9 Creating template from the main Toolbar Figure 9: Generation a new template via icon "Test Template new/open ..." After following the above steps a Template Editor window will be opened. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 9 01.00...
- Page 10 Configuration of EMI Automotive Band Evaluation Test Figure 10: EMI Automotive conducted Test Template Editor Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 10 01.00...
- Page 11 Configuration of EMI Automotive Band Evaluation Test Figure 11: EMI Automotive radiated Test Template Editor Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 11 01.00...
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Page 12: Configuration Of An Emi Automotive Radiated Test Template
The template offers three device modes but one of them, the “Single Measurement” mode is very specific, it is a customer solution which description is not part of this application note. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 12 01.00... - Page 13 Only checked columns will be shown. Report Settings A click on this icon pops up the standard setting for reports Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 13 01.00...
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Page 14: The Middle Part Of The Template Editor
(here: sub-range) need to be configured with appropriate setting in all five tabs as required by the test case. How to configure the test cases in the lower part of the template editor is topic of chapter 3. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 14 01.00... -
Page 15: Configuration Of Test Cases In The Editor
When opening the template editor again later on, the fact that such a settings summary text is displayed will proof that valid device settings have already been defined. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 15 01.00... -
Page 16: Setting In Test Setup Tab
Figure 16: Mouse functions in the editor 3.2 Setting in Test Setup tab Figure 17 shows the Test Setup tab with settings. Figure 17: Test Setup tab Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 16 01.00... - Page 17 Figure 20. This read only icon shows the Level Unit, the unit of the measured signal. The setting is done in Measurement Correction tab in Figure 18 Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 17 01.00...
- Page 18 Configuration of Test Cases in the Editor Figure 18: Three dialogs to define the antenna(s) Dialog defining the switched signal path from test receiver to the antenna. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 18 01.00...
- Page 19 Configuration of Test Cases in the Editor Figure 19: Dialog to define the signal path Figure 20: Receiver settings according to the chosen mode Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 19 01.00...
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Page 20: Settings In Subrange Tab
Allows to check ClearWrite and / or Maxhold Mode ClearWrite: New measurement value overwrites the old one, and MaxHold: New measurement value is stored if it is higher than the old one Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 20 01.00... -
Page 21: Settings In Graphics Tab
For each limit line optionally an offset may be applied (thus the copy of the limit line added to the appropriate EMI test will be corrected by the defined offset value). Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 21 01.00... -
Page 22: Settings In Data Reduction Tab
0. limit lines in graphic 3.5 Settings in Data Reduction tab Figure 24: Do Data Reduction unchecked grays out all settings Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 22 01.00... -
Page 23: Settings In Actions Tab
(tab: Graphics, Figure 23). Each limit line may be optionally shifted by the defined Offset value (thus EMC32 will add the offset value to the copy of the original limit line in the current test.) The Additional Limit Lines for Graphic are only displayed in the result graphic but are not used for data reduction or evaluation purpose. -
Page 24: Close The Editor And Save The Template
Automotive Test Template by clicking the OK Button. In the Save File Dialog we can choose an appropriate name for the template, which is now ready for use. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 24 01.00... -
Page 25: Running An Emi Band Evaluation Test
Running an EMI Band Evaluation Test Running an EMI Band Evaluation Test As usual for EMC32 there are several ways to start a new test. Figure 28: Several possibilities to start a new test directly or via the new test... -
Page 26: Measurement Mode
After selecting a test from Test Template, the template will be open in Analysis mode. When pressing the "Switch to measurement mode" or F4 button. It will leave the analysis mode and will switch to Measurement Mode. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 26 01.00... -
Page 27: Start A Test
When the cursor is removed the explorer will be faded out once again. Figure 33: As long as the Explorer is unpinned the EMC32 Explorer OR the Test Components is visible during mouse pointer is resting on the dedicated tear-off button 4.1.1 Start a Test... -
Page 28: Screen Elements
Further mode there is Frequency Test control, which shows the current measured frequency as well as the Arbitrary Step Width. Figure 35: During test run each subrange when executed gathers the data in a separate table and graphic Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 28 01.00... - Page 29 Figure 37: Configuration of the graphics display, all shown (Horizontal, Vertical) or only one visible (Cascade), all other are in the background, selectable by tabs Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 29 01.00...
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Page 30: Test Control Bar
Figure 40: Test Control Toolbar during test run Alternatively to clicking on one of the symbols in the toolbar the following functions can be controlled via the keyboard during a single measurement: Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 30 01.00... - Page 31 Frequency Step Step Size is defined in the Device Setting of the Test template. By clicking on backward this button the frequency will jump to the previous frequency. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 31 01.00...
- Page 32 Global: Limit lines defined from the Global Standards. 4. Output File: A name can be give to the output file which will be generated after Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 32 01.00...
- Page 33 This way the current result file will automatically be renamed to "Result Table (<time>)" or any name can be selected and will be added to the diagram. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 33 01.00...
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Page 34: Test Results
Frequency Step Forward Button 4.3 Test Results After the execution of the test, result tables will be generated for every Band (subrange) as defined in the Test Template. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 34 01.00... -
Page 35: Creating Reports
It is only visible in measurement mode, in analysis mode it can be floating. Creating Reports We start with an empty Report setup in the report generator. Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 35 01.00... - Page 36 Creating Reports Figure 42: In the Test Component tab of the EMC32 Explorer we start the Report Generator with an empty Report Figure 43: The empty Report Setup Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 36...
- Page 37 Creating Reports Figure 44: The left side allows to select components out of the available components and to edit their properties Figure 45: Properties of EUT information Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 37 01.00...
- Page 38 Creating Reports Figure 46: The properties allow selecting single graphics as well as all graphics by click on upper button Figure 47: Select a table Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 38 01.00...
- Page 39 Creating Reports Figure 48: Properties of tables Figure 49: One mouse click on refresh generates a preview of the report setup Figure 50: Preview of the test report Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 39 01.00...
- Page 40 Creating Reports Figure 51: Publishing the report Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 40 01.00...
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Page 41: Literature
EMI measurement data as described in the standard GMW3097; Feb. 2004. With EMC32 Version 9.00 EMC32-K51 emerged as a bundle of EMI tests defined in a template editor which is well adapted for high degrees of freedom in combining the editors for hardware setups and EMI test templates in one test sequencer. - Page 42 This can be done if the option "Do not Activate Measurement Mode on New Test" is selected in the "Option: File/Test" from the menu (Error! eference source not found.). Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 42 01.00...
- Page 43 EN55025 (2008 Ed.3) / CISPR 25 (2008 Ed. 3) ..... 41 EMC32 Ford ES-XW7T-1A278-AC............. 41 EMC32-EB ................41 GMW3091/GMW3097 Band Evaluation function ....41 EMC32-K51 ................41 EMC32 Version 9.xx ..............41 Rohde & Schwarz EMI Automotive Band Evaluation with R&S©EMC32-K51 – 1SP07- 43 01.00...
- Page 44 About Rohde & Schwarz Rohde & Schwarz is an independent group of companies specializing in electronics. It is a leading supplier of solutions in the fields of test and measurement, broadcasting, radiomonitoring and radiolocation, as well as secure communications. Established 75 years ago, Rohde &...