Mini-Dual Earth Sensor

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Description

The MiDES (Mini Dual Earth Sensor) is specifically designed to provide horizon position in both Pitch and Roll for Earth orbiting unmanned LEO satellites. The MiDES derives its information through the use of two pairs of 16 element pyroelectric detectors positioned 90 degrees apart, combining to provide 32 pixels that view the horizon Each 16 element array is spatially separated into two 8 element staggered columns shown below to provide for sun/moon rejection and for radiance compensation. Covering a FOV of 11 degrees, the pixels detect the temperature difference between the reference chopper, Earth and Space through measurement of the CO2 band thermal gradient. An algorithm calculates the position of the horizon based on the voltages obtained from the pixels that subtend the horizon. Earth and Space looking pixels are used to reduce radiance errors.

 

Datasheet

Servo – Mini-Dual Earth Sensor

Overview
NameMini-Dual Earth Sensor
ManufacturerServo
SubsystemACDS
ClassificationEarth Horizon Sensor
Form FactorSmallSat
TRL9
HeritageYes
Vendor Overview
Vendor NameServo
Vendor Websitehttps://www.servo.com/
Vendor LocationUnited States
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SPECIFICATIONS
SubsystemACDS
ClassificationEarth Horizon Sensor
Form FactorSmallSat
VendorServo
HeritageYes
Mass1.5 kg
Nominal Power0.8 W

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