Manuals / Agilent Technologies / Home Audio / Stereo System

Agilent Technologies Agilent 35670A manual Setting Up the Waterfall Display

Models: Agilent 35670A

1 82

Download 82 pages 27.58 Kb

Page 43

Section 15 : Waterfall Spectra at Time Intervals

AGILENT 35670A

Supplemental Operator’s Guide

Section 15 : Waterfall Spectra at Time Intervals

Waterfalls on the AGILENT 35670A can be used to examine and compare spectra at fixed intervals of time. This is especially useful when measuring non-stationary signals from machinery, such as during run-ups and run-downs. To see a waterfall display of the vibration signature, follow these steps:

Preset the analyzer as follows:

•Press the green [Preset] hardkey

•Press [DO PRESET] softkey (F1).

•Press the [Pause/Cont] hardkey if desired.

Selecting Single Channel Operation

Specify the single-channel instrument mode to measure one waterfall. Note that it is possible to measure and display waterfalls for two channels simultaneously. For single channel operation, however, the display performance will be better with only one channel active. To measure a single-channel waterfall, turn on the AGILENT

35670A and then:

•Press the [Inst Mode] hardkey

•Press [CHANNELS 1 2 4 ] softkey (F7) until 1 is highlighted.

Selecting Measurement Parameters

Refer to the section entitled “Measuring Single Channel Spectra” to set up span, ranges, coupling, averaging, and windowing. Transducer parameters set up is described in the section “Measuring with Transducers.”

Setting Up the Waterfall Display

The best view of a waterfall includes the current power spectrum above the waterfall trace. In the AGILENT35670A this is implemented with the UPPER/BIG LOWER display format as follows:

•Press the [Disp Format] hardkey.

•Select the [UPPER/ BIG LOWER] softkey (F4).

•Press the [Active Trace] hardkey.

•Select the [A] softkey (F2).

•Press the [Meas Data] hardkey.

• Toggle the [CHANNEL 1 2 3 4] softkey until 1 is highlighted.

•Press the [PWR SPEC CHANNEL 1] softkey (F3).

Continuing to set up a waterfall display,

•Press the [Active Trace] hardkey.

•Select the [B] softkey (F2).

39

Image 43

Agilent Technologies Agilent 35670A manual Setting Up the Waterfall Display, Waterfall Spectra at Time Intervals

Contents

Supplemental Operator’s Guide for the Agilent 35670A Dynamic Signal AnalyzerAGILENT 35670A Supplemental Operator’s Guide SECTION 13 ORDER DOMAIN RESULTS IN LIST MODE SECTION 24 PLOTTING AND PRINTING TRACE DATA Section 1 Turning On the AGILENT 35670A Freq Inst ModeMeas Data Trac Coord Coord AUsing Transducers with External Preamplifiers Using ICP-TypeTransducers with the AGILENT 35670ASection 3 Measuring with Transducers Specifying Transducer Sensitivity and Units Selecting Single Channel Operation Setting Up Transducer Units for DisplacementSelecting Frequency Span Frequency Spans Available for the AGILENT 35670A Quantifying Power Spectrum Results Maximizing Dynamic Range Frequency Zooming to Increase ResolutionSection 5 Improving Measurement Results Averaging to Reduce Measurement Variance AGILENT 35670A Supplemental Operator’s Guide Selecting Single Channel Operation AGILENT 35670A Supplemental Operator’s GuideDisplaying Time Waveforms Selecting Time Record LengthEvent Triggering Quantifying Time Trace Results Selecting Frequency Span Presetting the AnalyzerSelecting Dual Channel Operation Section 7 Measuring Dual Channel SpectraUsing Markers with Dual Channel Measurements Coupled Markers with Peak Tracking Coupled MarkersMaximizing Dynamic Range Dual Channel AveragingAGILENT 35670A Supplemental Operator’s Guide Selecting Time Record Length Displaying Dual Time WaveformsSection 9 Measuring Dual Channel Time Waveforms Selecting Dual Channel OperationTriggering a Dual-ChannelTime Measurement Arming Dual Channel Time MeasurementsTrigger Delay Using Markers with Dual Channel Time Measurements AGILENT 35670A Supplemental Operator’s Guide Setting Up the Transducer Parameters Choosing a Preliminary Frequency Span Setting Up Input RangeSpecifying Trigger Parameters WAITING FOR CH 1 TRIGGER Setting Up Time DisplaysUsing Force/Response Windows Averaging Displaying Hammer Test ResultsAGILENT 35670A Supplemental Operator’s Guide Delay = 01.T ForceWidth = T ExponentialDecay = T Changing Frequency SpanAGILENT 35670A Supplemental Operator’s Guide Prepare the order results list as follows AGILENT 35670A Supplemental Operator’s GuideSection 13 Order Domain Results in List Mode Prepare the order display as followsTo start taking measurements AGILENT 35670A Supplemental Operator’s GuideSelecting Measurement Parameters Recalling the Spectra from Non-VolatileRAM Recalling the Spectra from DiskScaling the Displays Using Markers to Compare Selecting Measurement Parameters Setting Up the Waterfall DisplaySection 15 Waterfall Spectra at Time Intervals Selecting Single Channel OperationUsing Slice Markers with Waterfall Data Setting Up Time Step ArmAGILENT 35670A Supplemental Operator’s Guide Specifying the Start RPM Setting Up the TachometerSection 16 Waterfall Spectra at RPM Intervals Scaling the Display Starting and Pausing a MeasurementAGILENT 35670A Supplemental Operator’s Guide Accelerometer Polarity AGILENT 35670A Supplemental Operator’s Guide Set up triggering on Channel 1 to 5% of rangeFor accelerometers with opposite polarity Set up the AGILENT 35670AAGILENT 35670A Supplemental Operator’s Guide For accelerometers with the same polaritySet up trace coordinates as peak-to-peakmil Set up displayAGILENT 35670A Supplemental Operator’s Guide AGILENT 35670A Supplemental Operator’s Guide AGILENT 35670A Supplemental Operator’s Guide Enter Channel 1 input parameters Preset the AGILENT 35670AAGILENT 35670A Supplemental Operator’s Guide Connect the transducersAGILENT 35670A Supplemental Operator’s Guide Set up display parametersChoose measurement parameters AGILENT 35670A Supplemental Operator’s Guide AGILENT 35670A Supplemental Operator’s Guide Viewing Results Using Real and Imaginary TracesAssessing Measurement Quality Set up Trace B to measure velocity in inch/s 0-pk Preset the AGILENT 35670AAGILENT 35670A Supplemental Operator’s Guide Press the XDCR UNIT CONVERT softkey F4 AGILENT 35670A Supplemental Operator’s GuidePress the Trace Coord hardkey Press the Y UNITS softkey F8AGILENT 35670A Supplemental Operator’s Guide AGILENT 35670A Supplemental Operator’s Guide When the run-upand run-downis completedCharacterizing the External Trigger Specify User Levels for TriggeringSet up a non-TTLtrigger as follows Setting Up External TriggerAcquire and Display the Trigger Signal Characterize the Trigger SignalAGILENT 35670A Supplemental Operator’s Guide Set up measurement parametersSaving Trace to 3.5” Disk Confirming Contents of 3.5” Disk FileTo return to the Trace view Confirming Contents of NV-RAMSaving Trace to Non-VolatileRAM NV-RAM AGILENT 35670A Supplemental Operator’s GuideRecall Trace Data from Non-VolatileRAM NV-RAM Recall Trace From 3.5” DiskAGILENT 35670A Supplemental Operator’s Guide Plotting the Display Generating Output with the AGILENT 35670ASection 24 Plotting and Printing Trace Data Plot the Trace Printing the DisplayAGILENT 35670A Supplemental Operator’s Guide Check the Plot/Print DestinationSection 25 Importing Plots into Microsoft Word Plot to a File Using the AGILENT 35670A Section 28 Precautions to Prevent Loss of Data Measuring Acceleration, Displaying Displacement Converting Frequency Response Units to Compliance Math Functions and XDCR UNIT CONVERTNow display the function F1 on Trace B AGILENT 35670A Supplemental Operator’s GuideAGILENT 35670A Supplemental Operator’s Guide above the track number AGILENT 35670A Supplemental Operator’s GuideSection Section