DMC Calibration

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DMC Calibration
Klaus Neumann Product Manager
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DMC - Camera Head Production

• Raw Die

• DMC Assembly

• Delivery

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Zeiss Jena Clean Room Facilities
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DMC Calibration - Overview
Platform
Single Head
Radiometry
Online Platform
Geometry
Radiometry
Geometry
PRC PPS S/W Component
DMCORI PPS S/W Component
DMC Post Processing
Ulbricht Sphere
Collimator
homogeneous virtual image radiometry
mosaicking geometric quality assessment
Initial EO for all 8 camera heads
Adjusted, homogeneous pixel sensitivity Color
Balance
Interior Orientation Data
Internal Calibration Data
Calibration CD
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Geometric Calibration

• Designed for DMC
• Rotationtable with 0.3 mgon accuracy
• Circular Targets
• Fully automatic

Zeiss Jena
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Radiometry

• Calibration with Ulbricht Sphere

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DMC Environmental Tests
RTCA / DO 160 E ( ISO 7137) EN
61000-6-22001Electromagnetic compatibility (EMC)
Part 6-4 Generic standards Section 2 Immunity
for industrial environments Section 4 Emission
standard for industrial environments Part 4
Testing and measurement techniques Section 2
Electrostatic discharge immunity test Section 5
Surge immunity test EN550111998 Industrial,
scientific and medical (ISM) radio-frequency
equipment -Radio disturbance characteristics
-Limits and methods of measurement
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DMC Environmental Tests
Vibration -Sinus DO 160 E Section 8
(Vibration) Figure 8-3 Category M (5 -500 Hz)
(Standard Sinusidal Vibration Test curves for
equipment installed in fixed wing aircraft with
reciprocating or turbo propeller engines)
-Random ISO 9022-37 Category 21 (1,4 g rms _at_
20-2000 Hz) Shock 15 g _at_ 11ms according ISO
9022-30 Category 01 Temperature -Temp-Burn In
according own specification Operating
Temperature 0 40C T1 30min T2 4h T3
30min (In minimum 4 cycles) -Storage Temperature
(according own specification)DMC Camera -20C
70C (T1 1h T2 48h T3 1h)All other
Equipment -40C 70C (T1 1h T2 48h T3
1h) Pressure -Under pressure RTCA / DO 160 E
Section 4 (Temperature Altitude)Category C1
10700 m (guaranteed for customers only 8000m)
T0 T1 30min T1T2 0 T2T3 4h Temperature
20C
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Factory Acceptance and Certification

• Factory acceptance Test
• 1st images taken and processed
• Test procedure includes GPS simulated flight
• Test Flight
• Full Mission -gt Test field Elchingen
• 500m flying height
• 5cm GSD
• 8 control points
• AT is run to determine platform calibration

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Standard DIN 18740-4Geometric Calibration
Protocol

• Geometric Calibration Protocol for each camera
  module or spectral channel

• For mosaicked images the relative orientation of
  the cameras for each exposure

• Alignment of the IMU to the focal plane

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