UV Measurement & Process Control

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Equal Joules = Equal Cure?• Area in each figure approximately equal• Represents the “area under the curve” or Joules/cm 2• Equal Joules ≠ Equal Cure?IrradianceTime
How do we measure?Absolute Instruments• Absolute units (mJ/cm 2 andmW/cm 2 ), compare readings betweencuring units and locationsRelative Instruments• Relative units, electronic signalproportional to lamp brightness (%intensity), on line continuousmonitoring, feedback to display, PLC
Page 3 and 4: Are we speaking the same (UV) langu
Page 5 and 6: Why do we measure?• Repeatability
Page 7 and 8: Who is measuring UV and what is the
Page 9 and 10: Where the UV goes-relative penetrat
Page 11 and 12: Electrical Power• Amp MeterWhat s
Page 13 and 14: What should we monitor?• Before:
Page 15 and 16: Impact of System ChangesWhat should
Page 17 and 18: What should we monitor? UV Spectral
Page 19 and 20: With 600 hours of run time would yo
Page 21 and 22: What should we monitor?Do you have
Page 23: Radiant Energy Density as a Functio
Page 27 and 28: UV Bandwidths60504030CBAV201000 100
Page 29 and 30: UV Measurement and Process Control
Page 31 and 32: Process or Cure WindowNormal Operat
Page 33 and 34: Sample Job LogDateLine Speed DwellT
Page 35 and 36: UV Formulation SpecificationsOrigin
Page 37 and 38: Why Calibrate?• Balance the amoun
Page 39 and 40: Instrument Optics: Spatial Response
Page 41 and 42: Instrument ElectronicsThreshold•
Page 43 and 44: Instrument with Low Sampling Rate &
Page 45 and 46: What ‘dialect’ of UV Watts are

UV Measurement & Process Control

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