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GHI ProCAT
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• The Lowest Cost 8 Channel Analyzer Tailored With
  All Needed Functions To Increase Your 6DOF
  Productivity

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Subjects For Your Consideration

• The Basic Rules Of Defect Precipitation
• Why 6DOF Users Need Spectrum Analyzers
• Description Of ProCAT
• ProCATs Competitive Advantages
• Lowest Priced 8 Channel Analyzer
• Ease Of Use
• Key Features
• The ProCAT Configurations

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Rules Of Defect Precipitation
The following slides describe the Basic Rules
of defect precipitation. The are the Golden
Rules1.
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1 If Youre Not Stressing The Flaw, Youre
Wasting Your Time.1

• Basic Physics Components Accumulate Fatigue
  Through Vibration _at_ their self-resonant
  frequency Fr.2
• Basic Screening Requirement Accumulated Fatigue
  Must Exceed Flaw Fatigue Limit _at_ Fr.
• Input Energy MUST Match Flaw Susceptibility -
  Type, Rate, Resonant Frequency Fr.
• Input Energy Must Reach Potential Flaws To Make
  Them Fail
• Flaws Not Under Critical Stress Have Infinite
  Life
• There is no Guarantee Input Energy Will Reach
  Flaw Sites Job 1 is to Determine if it Does at
  an Input Energy That is Above a Critical Level.
• A Screen is Faster if Excitation is Uniform Since
  Fewer Steps at Increasing Stress Levels Will be
  Needed.

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2 What You Dont Know CAN Ruin Your Screen1

• Knowledge of Product Response is Essential
• Stress Transmission Paths to The Flaw Site
  Control Screening Effectiveness
• Thermal Vibration Surveys are VALUE-ADDED
  Development Tools
• Surveys Help Match PRODUCT RESPONSE With INPUT
  ENERGY Characteristics
• As a Rule, PRODUCT RESPONSE Spectrums MUST be
  ENVELOPED by the INPUT ENERGY Spectrum
• Survey Data Applies to More than One Product Type

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3 Mother Nature Always Sides With Physics1

• Reasons Stress Characteristics Dont Match
  Product Response
• Test Machines Have Distinct LIMITATIONS Due to
  Combinations of Two Principles
• Thermal Change Rates TOO Slow or TOO Fast
• Insufficient Thermal Stress at Flaw Sites
• Vibration Holes or Spikes in Input Spectrum in
  Relation to Table/Fixture Position
• Too Little or Too Much Stress at Both Flaw and
  Non-Flaw Sites

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5 There Are NO Magic Facilities or
Methodologies1

• Facilities Can Only Accomplish What Physics
  Allows
• Technical Knowledge IS STILL A NECESSARY
  COMMODITY
• Physics, Not Marketing, Determines Whether A
  Screening Chamber Can Provide Adequate Stress
• Its NOT a Case of Turn-it-on-and-trust-me.

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What Spectrum Analyzers Do

• Only Effective Means to Measure The Process
• Verify If Hanks Rules Papoulis Law Are Met
• In a Nut Shell, Since Fatigue Comes From Self
  Resonance, Determine If Product Resonances Are
  Sufficiently Excited
• Help Identify Fixture Non-Uniformity of
  Transmission
• Improve Screen Uniformity Reduce Over And Under
  Stressing
• Improve Your HALT/HASS Process, Increase
  Effectiveness
• Determine Fatiguing Differences Between
  Facilities, Machines, Tables, Fixtures, and
  Products
• Minimize creen Time, Lower Cot

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Much To Learn From A PSD
This illustration, PSDs from two different tables
shows different effectiveness
RED - More Power For Low Resonant Frequency
Products Blue - More Power For High Resonant
Frequency Products
Plot of power g2/Hz for band of frequencies to
correlate with product fr frequencies..
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Description Of ProCAT

• 8 Parallel Channels w/BNC Inputs Each With ICP
  Conditioning For Voltage Mode
• Passive Fixed Cutoff AA Filters
• FFT Math Uses PC Resources
• 32 KB Data Blocks Produce 16 K Line FFTs For 12.5
  K Lines _at_ 0.7 Hz Line Resolution Plots
• Stream To HD Mode For Post Processing
• Easy Windows ICON Interface
• Single Click Control
• Waveform Plots With gRMS
• PSD Plots With gRMS

• Single Quad Spectral Plots
• PSD, FFT, Transfer Function with Coherence,
  Fatigue Potential Analysis
• Selectable Averaging
• Spectrum Zooms For Hi Res Plots
• Interchannel Overlays
• Saved Spectral Signature Modes Track Changes
• Save/Recall Spectrums From HD
• Exports Spectrums in ASCII For EXCEL or Other 3rd
  Party Needs
• Tower And Portable Versions

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ProCATs Advantages

• Very Low Price Per Channel
• 8 Parallel Conditioned Channels
• Easy Operation - Zero Training Needed!
• 12.5 KHz Bandwidth with 0.7Hz FFT Line Resolution
• Multiple Successive Zooms And Restores
• Zoomed PSDs With Recomputed Narrowband gRMS
• Only Analyzer With Fatigue DP(f) Function
• Exports Data in EUs Eliminating Converting
• Desktop And Portable Versions
• Specifically Tailored For HALT/HASS Machines
• Everything you need, Nothing you dont!

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Lowest Price/Channel

• 8 Ch in Desktop For Less Than 10K
• Tailoring Makes A High Quality Analyzer
  Affordable
• No Signal Conditioning To Buy For Voltage Mode
  ICP Sensors (mV/g sensitivities)
• Also Compatible With Current Mode Sensors
• Includes 8 Ch Of Anti-Alias Filters

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Easy To Use Easy To Learn

• Windows Based Menu Driven
• Just Select A Desired Function And Click
• Paint With Mouse For Zoom Plots
• Simple Setup Table With Default Selections For
• Number Of Averages
• Log - Log or Log - Linear Plots
• Weighting Window Types
• Channels To Overlay With Common Grid Cursor
  Readout
• Channels For Transfer Function Analysis
• Modes Single Shot, Continuous, Or Streaming to
  Disk
• Sensor Attributes And Programmable Gain w/Auto
  Scale Re-Setting

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The Easy Setup Screen
Most Are Default Settings, But May Be
Changed Streaming To Disk Settings Display
Available Space On Disk, Selections For Total
Streaming Time Or Number Of Files. Plot Modes,
Weighting Windows, Averaging, And Sensor
Calibration Values And Engineering Units Are Set
From This Screen.
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Bandwidth/Resolution

• 32 KB Data Block Produces 16 K Line FFT
• FFT Line Resolution 0.7 Hz
• PSD, TF, DP(f) Frequency Resolution 1.4 Hz
• Display Bandwidth 1 Hz to 12.5 KHz
• 12.5 K Line Plots Zoomable Up To 25 Times For
  High Resolution 512 Line Bands
• Zoomed Plots Are Auto scaled
• Un-Zoomed Saved Files Are Zoomable After Recall

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PaintToZoom Plots

• Eliminates Need For Setup Changes For Different
  Bandwidths or Resolution
• Click And Drag - Paint Portion Of Spectrum To Any
  Desired Display Bandwidth
• On Button Release Painted Portion Fills Screen
• Plot Axes Are Automatically Rescaled
• New Narrowband gRMS Is Displayed
• Operates on All Spectrums, Overlays, As Well As
  Recalled Files Signatures

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Special Modes/Functions

• Quad Overlay Plots
• Shows Before/After Spectrums From Four Sensor
  Positions
• Signature Mode -
• Confirms Same Performance When Reproducing Test
  Setups
• Tracks Wear, Validates Equality Between Different
  Machines Tables or Fixtures
• Streaming Mode -
• Saves Long Term Environmental Data While
  Analyzing
• Provides Post-Processing For Different Analysis
  After Recall
• Records End Use Environments To Correlate EOL
  With HALT/HASS Levels
• ASCII Export -
• Output Spectral Data in Smoothed EXCEL Compatible
  Format

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ProCATs Quad Plot Mode
Four Of Any Spectra on One Display All With
Active Cursors, Independent Zoom Expansions And
Readouts Each May be Overlaid With Old Data or
Data From Different Channels For PSDs and
Damage Potential Spectra
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ProCAT Transfer Function
Transfer Function is the difference, shown in
spectral amplitude, between two input
channels One use is to show the transmission
losses or gains through a fixture and at what
frequencies The Coherence plot at the bottom
shows the phase relation between the input and
output
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ProCATs Damage Metric
This Overlay Shows Fatigue Magnitude As Mag2/Hz
For Each Flaw fr Frequency Overlay Shows 2
Different Exposure Times, Different by Factor of
10 This is Seen in DP(f) Readout _at_ Same fr fRMS
Values Differ by Factor of Square Root of 10x
Time Difference 3.16
209 65.9
209 65.9
fRMS 2 20.0 2 65.9
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Desktop System Configuration
PCI Bus Cards, DAC and AA Filters Plus Sensor
Conditioning I/O Cables, 8 CH Input
Box, Auto-loading Software.
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Portable ProCAT Configuration
Self Contained Notebook Based System Optional
12V DC Operation Optional SCSI HD For
Extended Recording Time And Archiving
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Example Of DP(f) Use

• DP(f) spectrums were measured from two 6DOF
  machines produced by the same manufacturer.
• Both were running _at_ 10 gRMS.
• Sensors were located at front-left quadrant
  locations on each table.
• DP fRMS Indicated that machine 2 produced two
  times as much fatigue as machine 1, overall.
• This suggests that screen time costs of machine
  2 can be 1/2 those of machine 1 for the same
  screen results, and also that unless exposure
  time compensation is made, some products with
  critical fr may have different EOL.

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Machine 1 vs Machine 2
From two similar machines, same table locations,
_at_10 gRMS.
Overall, 2 produces 2 times more fatigue than
1.
At 508 Hz, 2 produces 386X more fatigue than 1.
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Why YOU Need ProCAT

• Improve creen Program Reults, Improve Product
  Reliability, Cut creening Costs, Vastly Improve
  EOL Uniformity of Your Products.
• This Leads to
• Your Firm Enhanced Overall Image of Technical
  uperiority, Increaed Product Reputation,
• Your Increased Personal Stature By Improving Your
  creening Programs Results
• Add Your Name To The Growing List Of atisfied
  Customers
• Users Include QualMark, Dell, DTI, Whirlpool,
  Seagate, Pierce

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References

1. Caruso, H., The Golden Rules of Successful ESS,
   1st U. Of Maryland/GHI Systems Workshop for
   Repetitive Shock (RS) Machine Users, University
   of Maryland, 22 March 1995, Edited By Henderson,
   G.
2. Papoulis Law of Gaussianity Rome AFB.
3. Svensson, T., and Torstensson, H.. 1993,
   Utilization of Fatigue Damage Response Spectrum
   in the Evaluation of Transport Stresses, 1993
   Proceedings, IES, Vol 2., pp. 191-194.
4. Henderson, G., and Piersol, A.G., Fatigue Damage
   Related Descriptor for Random Vibration Test
   Environments, Sound and Vibration, October,
   1995, pp. 20-24.
5. Connon, S. Methods of Combination of Spectra-
   Fatigue Damage Spectrum Method, August 2002,
   IEST Meeting, Phoenix, AZ
6. Anon, Qualmark Sales Meeting, November, 2003,
   Denver, CO.

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Thanks For Looking At ProCAT

• Sales_at_GHISYS.COM
• 310-548-6544
• 800-GHI-SYST

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