SVPO Order Metrics for Periodic Inspection VI

SVPO Order Metrics for Periodic Inspection VI

Owning Palette: Embedded Monitoring VIs

Requires: Sound and Vibration Toolkit

Computes the metrics of designated orders in an even-angle signal, such as magnitudes, phases, speed, DC gap, RMS level, and max-min level. This VI calculates metrics values from the latest integration cycles of the even-angle signal. Use this VI on embedded targets that have limited computational resources. Wire data to the even-angle signal input to determine the polymorphic instance to use or manually select the instance.

SVPO Order Metrics for Periodic Inspection (1 Ch)

	reset? specifies the initialization of the internal states. The first time this VI runs, or when reset? is TRUE, the internal states initialize to zero. If reset? is FALSE, this VI sets the internal states to the final states from the previous call to the VI. The default is FALSE. You must manually set reset? to TRUE if integration cycles changes in a continuous measurement. You also need to set reset? to TRUE if the input values of the SVPO Analog Tacho Process VI and SVPO Convert to Even Angle Signal VI change in a continuous measurement.
	update? specifies whether this VI computes the order metrics. The default is TRUE. You can set update? programmatically so that this VI returns the metrics computation at a specific time interval.
	even-angle signal specifies the even-angle-resampled data. even-angled signal is synchronous to the rotational speed with a constant number of samples per revolution. r0 specifies the starting index value for counting revolutions. dr specifies the revolution interval between two sequential samples. Y specifies the value of the even-angle-spaced sample in a scaled engineering unit.
	even-angle position info returns the position information of even-angle signal. positions [s] returns the locations of the samples in seconds. samples/rev returns the number of samples per revolution.
	orders specifies the orders this VI uses to compute the metrics. The default is 1.0.
	integration cycles specifies the duration of the measurement in cycles. The default is 8. If the number of cycles in each iteration is smaller than integration cycles, the output metrics values are valid only when the number of passing cycles is greater than integration cycles. If the number of cycles in each iteration is greater than integration cycles, this VI calculates the output metrics values from the latest integration cycles.
	measurement selection specifies the order metrics to calculate. By default, this VI returns all the measurements in measurement selection. You can set some of the measurements that you do not need to FALSE to save computational resources. speed specifies whether to return the rotational speed. The default is TRUE. DC gap specifies whether to return the value of the DC gap. The default is TRUE. RMS level specifies whether to return the value of the RMS level. The default is TRUE. max-min level specifies whether to return the value of the max-min level. The default is TRUE. magnitude specifies whether to return the value of the magnitude. The default is TRUE. phase specifies whether to return the value of the phase. The default is TRUE.
	speed [RPM] returns the averaged rotational speed in revolutions per minute.
	DC gap returns the value of the DC gap of the even-angle signal.
	RMS level returns the RMS level of the even-angle signal.
	max-min level returns the max-min level of the even-angle signal.
	magnitudes [RMS] returns the magnitudes, in RMS value, of the specified order.
	phase [phase lag] returns the wrapped radian phase, in phase lag value, of the specified order.

SVPO Order Metrics for Periodic Inspection (N Ch)

	reset? specifies the initialization of the internal states. The first time this VI runs, or when reset? is TRUE, the internal states initialize to zero. If reset? is FALSE, this VI sets the internal states to the final states from the previous call to the VI. The default is FALSE. You must manually set reset? to TRUE if integration cycles changes in a continuous measurement. You also need to set reset? to TRUE if the input values of the SVPO Analog Tacho Process VI and SVPO Convert to Even Angle Signal VI change in a continuous measurement.
	update? specifies whether this VI computes the order metrics. The default is TRUE. You can set update? programmatically so that this VI returns the metrics computation at a specific time interval.
	even-angle signals specifies the even-angle-resampled data. even-angled signals are synchronous to the rotational speed with a constant number of samples per revolution. r0 specifies the starting index value for counting revolutions. dr specifies the revolution interval between two sequential samples. Y specifies the value of the even-angle-spaced sample in a scaled engineering unit.
	even-angle position info returns the position information of even-angle signals. positions [s] returns the locations of the samples in seconds. samples/rev returns the number of samples per revolution.
	orders specifies the orders this VI uses to compute the metrics. The default is 1.0.
	integration cycles specifies the duration of the measurement in cycles. The default is 8. If the number of cycles in each iteration is smaller than integration cycles, the output metrics values are valid only when the number of passing cycles is greater than integration cycles. If the number of cycles in each iteration is greater than integration cycles, this VI calculates the output metrics values from the latest integration cycles.
	measurement selection specifies the order metrics to calculate. By default, this VI returns all the measurements in measurement selection. You can set some of the measurements that you do not need to FALSE to save computational resources. speed specifies whether to return the rotational speed. The default is TRUE. DC gap specifies whether to return the value of the DC gap. The default is TRUE. RMS level specifies whether to return the value of the RMS level. The default is TRUE. max-min level specifies whether to return the value of the max-min level. The default is TRUE. magnitude specifies whether to return the value of the magnitude. The default is TRUE. phase specifies whether to return the value of the phase. The default is TRUE.
	speed [RPM] returns the averaged rotational speed in revolutions per minute.
	DC gap returns the values of the DC gap of the even-angle signals.
	RMS level returns the RMS levels of the even-angle signals.
	max-min level returns the max-min levels of the even-angle signals.
	magnitudes [RMS] returns the magnitudes, in RMS value, of the specified orders.
	phase [phase lag] returns the wrapped radian phases, in phase lag value, of the specified orders.

SVPO Order Metrics for Periodic Inspection (1 Ch) with IC

	reset? specifies the initialization of the internal states. The first time this VI runs, or when reset? is TRUE, the internal states initialize to zero. If reset? is FALSE, this VI sets the internal states to the final states from the previous call to the VI. The default is FALSE. You must manually set reset? to TRUE if integration cycles changes in a continuous measurement. You also need to set reset? to TRUE if the input values of the SVPO Analog Tacho Process VI and SVPO Convert to Even Angle Signal VI change in a continuous measurement.
	update? specifies whether this VI computes the order metrics. The default is TRUE. You can set update? programmatically so that this VI returns the metrics computation at a specific time interval.
	even-angle signal specifies the even-angle-resampled data. even-angled signal is synchronous to the rotational speed with a constant number of samples per revolution. r0 specifies the starting index value for counting revolutions. dr specifies the revolution interval between two sequential samples. Y specifies the value of the even-angle-spaced sample in a scaled engineering unit.
	even-angle position info returns the position information of even-angle signal. positions [s] returns the locations of the samples in seconds. samples/rev returns the number of samples per revolution.
	orders specifies the orders this VI uses to compute the metrics. The default is 1.0.
	integration cycles specifies the duration of the measurement in cycles. The default is 8. If the number of cycles in each iteration is smaller than integration cycles, the output metrics values are valid only when the number of passing cycles is greater than integration cycles. If the number of cycles in each iteration is greater than integration cycles, this VI calculates the output metrics values from the latest integration cycles.
	measurement selection specifies the order metrics to calculate. By default, this VI returns all the measurements in measurement selection. You can set some of the measurements that you do not need to FALSE to save computational resources. speed specifies whether to return the rotational speed. The default is TRUE. DC gap specifies whether to return the value of the DC gap. The default is TRUE. RMS level specifies whether to return the value of the RMS level. The default is TRUE. max-min level specifies whether to return the value of the max-min level. The default is TRUE. magnitude specifies whether to return the value of the magnitude. The default is TRUE. phase specifies whether to return the value of the phase. The default is TRUE.
	initial conditions specifies the initial internal state of this VI. This input should come from the previous output of final conditions from the last call to this VI in order to operate on samples continuously.
	speed [RPM] returns the averaged rotational speed in revolutions per minute.
	DC gap returns the value of the DC gap of the even-angle signal.
	RMS level returns the RMS level of the even-angle signal.
	max-min level returns the max-min level of the even-angle signal.
	magnitudes [RMS] returns the magnitudes, in RMS value, of the specified order.
	phase [phase lag] returns the wrapped radian phase, in phase lag value, of the specified order.
	final conditions returns the final internal state of this VI. This output should be passed to the initial conditions input on the next call to this VI in order to operate on samples continuously.