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CompetitorsCompetitors
Available PdM TechnologiesAvailable PdM Technologies
technology
Characteristic
Ultra VioletInfra RedUltra SonicPD
VisualPinpointVoltagesN/A
Current dependent
Non destructive
Prices level
Manufacturers2 (daytime)ManyManyMany
Functions
HighMediumLow
Available PdM TechnologiesAvailable PdM Technologies
technology
Characteristic
Ultra VioletInfra RedUltra sonicPD
ContaminationUndefinedLoose hardwareUndefined RFI, TVI, ANUndefinedConnectionsUndefinedLubricant (oil)UndefinedLoad line (Current)UndefinedInternal faultsIndicationIndicationUndefined
Mission
Available PdM TechnologiesAvailable PdM Technologies
technology
Characteristic
Ultra VioletInfra RedUltra sonicPD
Ambient limitations
Temperature Audio NoiseDistance Limitationn/aMode of operation:
Ground patroln/a Airbornen/a Drivenn/a
Performance
Corona Detection MethodsCorona Detection Methods
Daytime Solar Blind UV Cameras• Ofil - DayCor® products • Ofil – UVolle • CoroCAM
Other• Ultrasonic • RF - Radio Frequency• Night UV cameras - long exposure
Non imaging devices - limitations • Detection distance - 50 Meter
• Cannot pinpoint corona source
• Disturbed by noisy environment
• Unfit for airborne inspections
Corona DetectionCorona Detection Methods-RejectsMethods-Rejects
Daytime CompetitorDaytime Competitor
SensitivityErgonomicRecording
Specifications
MethodologyUGM
Features
Specifications
Performance
Ofil Support
DayCor® Vs. CoroCAM
28% (70/250) of max gain Counting is 3259/min
69% of the max gain Counting is 900/min (15/Sec)
DayCor®
CoroCam
Test conditions
Same day and time
Identical source
Identical distance
Play
Click to Play
Comparison testComparison test - - ResultsResults
Click to Play
• DayCor® Gain 2.4 times lower• DayCor® count 3.6 times higher
Outcomes and ConclusionsOutcomes and Conclusions
DayCor® sensitivity - 9 times higher
Sensitivity Comparison [ Watt/cm^2]
DayCor®
High3x10-18
CoroCamLow
8x10-18
Ofil can detects
1.5 pC from a distance of 8m at normal video rate (25 or 30 frames/sec)
without any image processing.
DayCor® sensitivity is 3 times higher than CoroCAM
DayCor® Vs CoroCamDayCor® Vs CoroCam
Large efficiency collection area
High quality solar blind filter
Strong and sensitive MCP
Narrow FOV - Filed Of View
DayCor® has the highest sensitivity due to:
Feature - SensitivityFeature - Sensitivity
Feature - Long IntegrationFeature - Long Integration
Low frame ratelingered shots of each scene
• Used by CoroCAM to compensate for low sensitivity
• Must use a tripod
• Slow inspections – unfit for airborne nor driven
Feature - Long IntegrationFeature - Long Integration
Recommended to:
1. Overcome background
disturbances/noise
Not recommended:
1. Smearing picture
2. Lingered inspection
3. Tripod required.
Click to Play
CharacteristicsDayCor®CoroCAM
DistanceHighLow
Airborne Inspectionhigh speedHovering
Pinpoint accuracyHighMed
Pinpoint factors:
FOVNarrow angle 5H x 3.75V Deg
Wide angle optics 8H x 6V Deg
UV-Vis overlayReal TimeDelayed - Image processing (Video delay)
SmearingNoneSmearing
Solar BlindAbsolute Limited
Conclusion - SensitivityConclusion - Sensitivity
Feature - ErgonomicFeature - Ergonomic
ErgonomicDesign
Recording ofFindings
Hands FreeInspection
Safe Operation
Duration ofDaily Inspection
Activation of operational modes
DayCor®
• Carrying vest
• LCD screen
• Weight 3.3kg
• Video Stills capture
CoroCam
• Harness
• View finder
• Weight 2.3kg
• Stills picture only
Feature - ErgonomicFeature - Ergonomic
Ergonomic Design
DayCor® Classic Hands free inspection
CoroCamCaptive hands and eyes
Feature - ErgonomicFeature - Ergonomic
Feature – Video RecordingFeature – Video Recording
Video Recording Still picture
Corona is an intermittent phenomenon
Processing is done at the office – far from the actual scene. Video is preferable !
Play
Ergonomic Design
CoroCam:Additional employee is required For recording process
CoroCamWorking with tripod is Essential for working in the LI (low frame rate) mode
Feature - ErgonomicFeature - Ergonomic
CharacteristicDayCor®CoroCam 504
Findings recordingVideo - InternalStills
Hands free scanYesNo
Working hours ExtendedLimited
Muscle strain
Eye strain
Power
Camera load on big muscles
LCD screen
Single battery 180min
Raised arm
View finder
Single battery 90min
Safe operationYes No
Conclusion - ErgonomicConclusion - Ergonomic
UGM
Ofil Supportive ActivitiesOfil Supportive Activities
Criticalcomponent?
Corona- where?
Material typeCritical
location?
Corona intensity?
Can it be damaged by
corona?
No
No
No
Yes
Yes
Yes
High
Medium Low
Monitor for additional signs
Schedule repair or replacement
Repair or replace ASAP
AN, RI, TVI concern? No
Yes
Repair or replace ASAP
Ofil Supportive ActivitiesOfil Supportive Activities
Market Install BaseMarket Install Base
Ofil80%
CoroCam20%
The End