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Agilent Technologies Agilent 35670A manual AGILENT 35670A Supplemental Operator’s Guide

Models: Agilent 35670A

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AGILENT 35670A

Supplemental Operator’s Guide

•Turn up the level control on the shaker amplifier until the excitation is noticeable, but does not buzz or rattle. If buzzing or rattling is heard, then either the level is too high or the structure is loose and must be quieted.

•Press the [MORE CHOICES] softkey (F9)

•Press the [BURST RANDOM] softkey (F2)

Set up the trigger

•Press the [Trigger] hardkey.

•Press the [SOURCE TRIGGER] softkey (F4).

To acquire a burst random frequency response of the structure:

•Press the yellow [Start] hardkey.

Avg	Type: RMS	Number: 10
[FFT]	Update Rt: 5	Overlap: 0 %

Date: 10-02-96 Time: 09:49:00 PM
A: Freq Resp2/1	X:0	Hz		Y:84.6724 e-3
1
LogMag
3
decades
1
e-3
0Hz			AVG:	10	400Hz
B: Freq Resp2/1	X:0	Hz		Y:0	deg
180
deg
Phase
36
deg
/div
-180
deg
0Hz			AVG:	10	400Hz

Viewing Frequency Response Results with a Nyquist Diagram

The previous display shows frequency response results with Log Magnitude and Phase traces. Other trace coordinates are available. To examine results in a Nyquist Diagram, proceed as follows:

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Image 57

Agilent Technologies Agilent 35670A manual AGILENT 35670A Supplemental Operator’s Guide

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 Meas Data Inst ModeTrac Coord Coord A FreqUsing ICP-TypeTransducers with the AGILENT 35670A Using Transducers with External PreamplifiersSection 3 Measuring with Transducers Specifying Transducer Sensitivity and Units Setting Up Transducer Units for Displacement Selecting Single Channel OperationSelecting Frequency Span Frequency Spans Available for the AGILENT 35670A Quantifying Power Spectrum Results Frequency Zooming to Increase Resolution Maximizing Dynamic RangeSection 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 Dual Channel Operation Presetting the AnalyzerSection 7 Measuring Dual Channel Spectra Selecting Frequency SpanUsing Markers with Dual Channel Measurements Coupled Markers with Peak Tracking Coupled MarkersMaximizing Dynamic Range Dual Channel AveragingAGILENT 35670A Supplemental Operator’s Guide Section 9 Measuring Dual Channel Time Waveforms Displaying Dual Time WaveformsSelecting Dual Channel Operation Selecting Time Record LengthTriggering 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 Setting Up Input Range Choosing a Preliminary Frequency SpanSpecifying 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 Section 13 Order Domain Results in List Mode AGILENT 35670A Supplemental Operator’s GuidePrepare the order display as follows Prepare the order results list 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 Section 15 Waterfall Spectra at Time Intervals Setting Up the Waterfall DisplaySelecting Single Channel Operation Selecting Measurement ParametersUsing Slice Markers with Waterfall Data Setting Up Time Step ArmAGILENT 35670A Supplemental Operator’s Guide Setting Up the Tachometer Specifying the Start RPMSection 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 rangeAGILENT 35670A Supplemental Operator’s Guide Set up the AGILENT 35670AFor accelerometers with the same polarity For accelerometers with opposite polaritySet up display Set up trace coordinates as peak-to-peakmilAGILENT 35670A Supplemental Operator’s Guide AGILENT 35670A Supplemental Operator’s Guide AGILENT 35670A Supplemental Operator’s Guide AGILENT 35670A Supplemental Operator’s Guide Preset the AGILENT 35670AConnect the transducers Enter Channel 1 input parametersSet up display parameters AGILENT 35670A Supplemental Operator’s GuideChoose measurement parameters AGILENT 35670A Supplemental Operator’s Guide AGILENT 35670A Supplemental Operator’s Guide Viewing Results Using Real and Imaginary TracesAssessing Measurement Quality Preset the AGILENT 35670A Set up Trace B to measure velocity in inch/s 0-pkAGILENT 35670A Supplemental Operator’s Guide Press the Trace Coord hardkey AGILENT 35670A Supplemental Operator’s GuidePress the Y UNITS softkey F8 Press the XDCR UNIT CONVERT softkey F4AGILENT 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 TriggeringAcquire and Display the Trigger Signal Setting Up External TriggerCharacterize the Trigger Signal Set up a non-TTLtrigger as followsAGILENT 35670A Supplemental Operator’s Guide Set up measurement parametersSaving Trace to 3.5” Disk Confirming Contents of 3.5” Disk FileSaving Trace to Non-VolatileRAM NV-RAM Confirming Contents of NV-RAMAGILENT 35670A Supplemental Operator’s Guide To return to the Trace viewRecall Trace Data from Non-VolatileRAM NV-RAM Recall Trace From 3.5” DiskAGILENT 35670A Supplemental Operator’s Guide Generating Output with the AGILENT 35670A Plotting the DisplaySection 24 Plotting and Printing Trace Data AGILENT 35670A Supplemental Operator’s Guide Printing the DisplayCheck the Plot/Print Destination Plot the TraceSection 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