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dB on? specifies whether to return the resulting order power spectrum in decibels. If dB on? is FALSE, this VI returns the order power spectrum linearly. The default is TRUE.
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even-angle signal specifies the even-angle-resampled data. even-angle signal is synchronous to the rotational speed with a constant number of samples per revolution.
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r0 specifies the starting index value for counting revolutions.
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dr specifies the revolution interval between two sequential samples.
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Y specifies the value of the even-angle-spaced sample in a scaled engineering unit.
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even-angle channel info specifies the information about the measurement configuration that this VI uses to acquire the resampled data. Do not change the values in even-angle channel info.
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window specifies the window this VI uses to compute the order power spectrum.
| 0 | None | | 1 | Hanning (Default) | | 2 | Hamming | | 3 | Blackman-Harris | | 4 | Exact Blackman | | 5 | Blackman | | 6 | Flat Top | | 7 | 4-Term B-Harris | | 8 | 7-Term B-Harris | | 9 | Low Sidelobe | | 10 | Gaussian |
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block size specifies the block size of the even-angle signal this VI uses to compute the order power spectrum. The default is 1024.
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error in describes error conditions that occur before this node runs.
The default is no error. If an error occurred before this node runs, the node passes the error in value to error out. This node runs normally only if no error occurred before this node runs. If an error occurs while this node runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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status is TRUE (X) if an error occurred before this node ran or FALSE (checkmark) to indicate a warning or that no error occurred before this node ran. The default is FALSE.
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code is the error or warning code. The default is 0.
If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
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source specifies the origin of the error or warning and is, in most cases, the name of the node that produced the error or warning. The default is an empty string.
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averaging parameters defines how the VI computes the averaging.
 | Note When you set averaging mode to No averaging, the VI ignores the weighting mode, number of averages, and linear mode settings. |
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averaging mode specifies the averaging mode.
| 0 | No averaging (Default) | | 1 | Vector averaging | | 2 | RMS averaging | | 3 | Peak hold |
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weighting mode specifies the weighting mode.
| Note RMS and vector averaging support linear weighting and exponential weighting. |
| 0 | Linear (Default) | | 1 | Exponential |
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number of averages specifies the number of averages used by the selected weighting mode.
If weighting mode is set to Linear, the measurement stops or automatically restarts after the value of number of averages has been reached. Whether the measurement stops or automatically restarts depends on the linear mode setting.
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linear mode specifies the behavior of the averaging if you set the value of the weighting mode parameter to Linear. If you set weighting mode to Exponential, linear mode is ignored.
| 0 | One shot—(Default) The averaging process stops once the value of number of averages is reached. | | 1 | Auto restart—Specifies that the averaging process automatically restarts once the value of number of averages is reached. |
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restart averaging? specifies if the selected averaging process has to be restarted. The default is FALSE. When you call this VI for the first time, the averaging process restarts automatically.
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new spectrum available? returns TRUE if order power spectrum contains a new measurement. When you wire this output value to the selector terminal of a Case structure, you can perform subsequent measurements or display this output value in the TRUE case of the Case structure.
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order power spectrum returns the averaged order power spectrum.
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order 0 returns the starting order of the spectrum.
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delta order returns the order interval of the spectrum.
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magnitude returns the magnitude of the averaged order power spectrum.
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unit label returns the selected engineering units.
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averages completed returns the number of averages completed by the VI at that time.
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spectrum info returns information about the spectrum for the Extended Measurements VIs.
Do not modify the spectrum info values.
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error out contains error information. If error in indicates that an error occurred before this node ran, error out contains the same error information. Otherwise, it describes the error status that this node produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
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code is the error or warning code.
If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
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source describes the origin of the error or warning and is, in most cases, the name of the node that produced the error or warning.
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averaging done? returns TRUE when averages completed is greater than or equal to the number of averages specified in averaging parameters. Otherwise, averaging done returns FALSE. averaging done is always TRUE if the selected averaging mode is No averaging.
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dB on? specifies whether to return the resulting order power spectrum in decibels. If dB on? is FALSE, this VI returns the order power spectrum linearly. The default is TRUE.
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even-angle signals specifies the even-angle-resampled data. even-angle signals are synchronous to the rotational speed with constant number of samples per revolution.
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r0 specifies the starting index value for counting revolutions.
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dr specifies the revolution interval between two sequential samples.
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Y specifies the value of the even-angle-spaced sample in scaled engineering unit.
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even-angle channel info specifies information about the measurement configuration this VI uses to acquire the resampled data. Do not change the values in even-angle channel info.
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window specifies the window this VI uses to compute the order power spectrum.
| 0 | None | | 1 | Hanning (Default) | | 2 | Hamming | | 3 | Blackman-Harris | | 4 | Exact Blackman | | 5 | Blackman | | 6 | Flat Top | | 7 | 4-Term B-Harris | | 8 | 7-Term B-Harris | | 9 | Low Sidelobe | | 10 | Gaussian |
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block size specifies the block size of the even-angle signal this VI uses to compute the order power spectrum. The default is 1024.
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error in describes error conditions that occur before this node runs.
The default is no error. If an error occurred before this node runs, the node passes the error in value to error out. This node runs normally only if no error occurred before this node runs. If an error occurs while this node runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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status is TRUE (X) if an error occurred before this node ran or FALSE (checkmark) to indicate a warning or that no error occurred before this node ran. The default is FALSE.
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code is the error or warning code. The default is 0.
If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
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source specifies the origin of the error or warning and is, in most cases, the name of the node that produced the error or warning. The default is an empty string.
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averaging parameters defines how the VI computes the averaging.
| Note When you set averaging mode to No averaging, the VI ignores the weighting mode, number of averages, and linear mode settings. |
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averaging mode specifies the averaging mode.
| 0 | No averaging (Default) | | 1 | Vector averaging | | 2 | RMS averaging | | 3 | Peak hold |
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weighting mode specifies the weighting mode.
| Note RMS and vector averaging support linear weighting and exponential weighting. |
| 0 | Linear (Default) | | 1 | Exponential |
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number of averages specifies the number of averages used by the selected weighting mode.
If weighting mode is set to Linear, the measurement stops or automatically restarts after the value of number of averages has been reached. Whether the measurement stops or automatically restarts depends on the linear mode setting.
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linear mode specifies the behavior of the averaging if you set the value of the weighting mode parameter to Linear. If you set weighting mode to Exponential, linear mode is ignored.
| 0 | One shot—(Default) The averaging process stops once the value of number of averages is reached. | | 1 | Auto restart—Specifies that the averaging process automatically restarts once the value of number of averages is reached. |
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restart averaging? specifies if the selected averaging process has to be restarted. The default is FALSE. When you call this VI for the first time, the averaging process restarts automatically.
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new spectrum available? returns TRUE if order power spectra contains a new measurement. When you wire this output value to the selector terminal of a Case structure, you can perform subsequent measurements or display this output value in the TRUE case of the Case structure.
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order power spectra returns the averaged order power spectrum.
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order 0 returns the starting order of the spectrum.
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delta order returns the order interval of the spectrum.
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magnitude returns the magnitude of the averaged order power spectrum.
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unit labels returns the selected engineering units for each channel.
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averages completed returns the number of averages completed by the VI at that time.
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spectrum info returns information about the spectrum for the Extended Measurements VIs.
Do not modify the spectrum info values.
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error out contains error information. If error in indicates that an error occurred before this node ran, error out contains the same error information. Otherwise, it describes the error status that this node produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
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code is the error or warning code.
If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
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source describes the origin of the error or warning and is, in most cases, the name of the node that produced the error or warning.
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averaging done? returns TRUE when averages completed is greater than or equal to the number of averages specified in averaging parameters. Otherwise, averaging done returns FALSE. averaging done is always TRUE if the selected averaging mode is No averaging.
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