Test Readiness Review

1
Test Readiness Review

• Tom McElroy
• Meteorological Service of Canada

2
What are We Testing?

• Functionality
• Alignment
• Noise Level
• Responsivity
• Spectral Purity
• Field of View Performance
• Characterization

3
Functionality

• Commanding
• Data Transfer
• Light Detection
• Wavelength Scanner Heater Operation
• Light Emitting Diode Operation
• Housekeeping Outputs
• Nominal Power Consumption

4
Alignment

• Laser Alignment Test
• Compare Solar Tracker to Imager
• Compare FTS to Imager
• Adjust as Needed
• Measure as a Function of Temperature

5
Responsivity

• Determine Responsivity
• (Ratio of Light Intensity to Counts)
• Use Regulated QI Lamp
• Linearity Test (High Light Levels)

6
Spectral Purity

• Slit Function Measurement
• (Pixel Dependent)
• Stray Light Characterization
• Video Line Leakage Test

7
Field of View

• Define FOV Limits
• Sensitivity as Function of Position
• FOV Stray Light

8
Characterization

• Dark Count Temperature Dependence (TD)
• (Dark Count Model Validation)
• Wavelength and Focus TD
• Linearity Correction Parameters
• Scan Rod Calibration
• Response to Absorbers
• Comparison to FTS

9
Testing Concerns

• Dark Count Methodology
• Resolution
• Light Emitting Diode Problem
• Table Interface from Model
• Software
• For linearity test
• For stray light / electrical leakage test
• Dark count prediction model validation