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Difference between revisions of "Sound Power Washing Machine IEC 704"
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Sound Power Washing Machine IEC 704 (view source)
Revision as of 22:19, 29 June 2020
, 22:19, 29 June 2020English edits
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The software add‐in called "SPAddin Cycle" allows | The software add‐in called "SPAddin Cycle" allows a user to determine the Sound Power Level for cycle machines. It is dedicated today to the measurement of Sound Power on washing machines as defined in the standard IEC704: 6 microphones around a source fixed against a wall. | ||
<font color="#366092"><font size = "5">'''1. Installation and run specificities'''</font></font> | <font color="#366092"><font size = "5">'''1. Installation and run specificities'''</font></font> | ||
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* After installing the software please replace the file "IEC704_PW6" (installed in the directory "C:\OROS\OROS Program files\Sound Power\Setups") by the new one provided in the directory " | * After installing the software please replace the file "IEC704_PW6" (installed in the directory "C:\OROS\OROS Program files\Sound Power\Setups") by the new one provided in the directory " | ||
* The Add‐in will install a specific "Sound Power" project in NVGate. If | * The Add‐in will install a specific "Sound Power" project in NVGate. If a user wants to use the standard Sound Power base module, they can reinstall the Base Module so that the standard "Sound Power" project will be reinstalled. | ||
<font color="#366092"><font size = "5">'''2. Getting Started'''</font></font> | <font color="#366092"><font size = "5">'''2. Getting Started'''</font></font> | ||
* In order to start the software in this mode one should | * In order to start the software in this mode one should use the load option from the setups directory: "IEC704_PW6.xls". | ||
[[Image:Sound_power_washing_machine__IEC704_01.png|framed|none]] | [[Image:Sound_power_washing_machine__IEC704_01.png|framed|none]] | ||
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<font color="#366092"><font size = "5">'''3. Application'''</font></font> | <font color="#366092"><font size = "5">'''3. Application'''</font></font> | ||
As shown | As shown in the figure below, there are two ways to determine the Sound Power level relatively to measurement start and stop: | ||
* We consider the full phase between the Start and Stop. This is the case for the base module of the Sound Power solution | * We consider the full phase between the Start and Stop. This is the case for the base module of the Sound Power solution. | ||
* We cut the measurement periods in a number of cycles: for the sound power on washing machines there are two cycles: washing and spinning. | * We cut the measurement periods in a number of cycles: for the sound power on washing machines there are two cycles: washing and spinning. | ||
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Sound Power measurements on washing machine: the system will record the full time history on the 6 microphones so that the user can choose the appropriate period. There are a number of features available thanks to the power delivered from the 3‐series analyzers: All channels are measured simultaneously, the short Leq1s | Sound Power measurements on washing machine: the system will record the full time history on the 6 microphones so that the user can choose the appropriate period. There are a number of features available thanks to the power delivered from the 3‐series analyzers: All channels are measured simultaneously, the short Leq1s are acquired, and all microphone positions are averaged simultaneously. The measurement time can be quite long: acquiring the signal over 3 hours. | ||
[[Image:Sound_power_washing_machine__IEC704_02.png|framed|none]] | [[Image:Sound_power_washing_machine__IEC704_02.png|framed|none]] | ||
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[[Image:Sound_power_washing_machine__IEC704_04.jpg|framed|none]] | [[Image:Sound_power_washing_machine__IEC704_04.jpg|framed|none]] | ||
The Sound Power level is determined during the Sound Power report session as shown below. There are 3 main steps in the data treatment. The first step is to load the data by pressing load cycles | The Sound Power level is determined during the Sound Power report session as shown below. There are 3 main steps in the data treatment. The first step is to load the data by pressing load cycles. | ||
The second step is to process to cycles selection: | The second step is to process to cycles selection: A user chooses the washing period and the spinning period. The most noisy period is automatically detected The data are used for the final Sound Power Reporting. | ||
[[File:SP.png]] | [[File:SP.png]] | ||