Post on 31-Mar-2015
transcript
Mini-Dusty PayloadMini-Dusty Payload
AGF-218AGF-218UNIS, LongyearbyenUNIS, Longyearbyen
Sveinung V. OlsenSveinung V. Olsen
ContentContent
Payload Payload layoutlayout
ElectronicsElectronics TelemetryTelemetry ExperimentsExperiments LaunchLaunch
Payload externalPayload external
Diameter: 54 mmDiameter: 54 mm Length: 1465 mm.Length: 1465 mm. Weight: 9,3 kgWeight: 9,3 kg Ejectable doors and Ejectable doors and
noseconenosecone Thermal coating, Thermal coating,
noseconenosecone Motors:Motors:
Viper IIIA, USA Viper IIIA, USA Excalibur 2, CanadaExcalibur 2, Canada RH 200-SV, IndiaRH 200-SV, India
Payload InternalPayload Internal
Heat insulationHeat insulation Nosecone probesNosecone probes Experiment sectionExperiment section Battery sectionBattery section Electronics sectionElectronics section Transmitter Transmitter
sectionsection
Payload Payload overviewoverview
Power systemPower system
Li- Ion batteryLi- Ion battery 2 cells, nominal 3.6 V each2 cells, nominal 3.6 V each 8.4 V fully charged8.4 V fully charged
Charging circuitCharging circuit Constant current (1.1 A) > Constant Constant current (1.1 A) > Constant
voltage (8.4 V)voltage (8.4 V) Power regulatorsPower regulators
+5V, +3.3V+5V, +3.3V Power switchingPower switching
Pyro power, experimentPyro power, experiment
Housekeeping sensorsHousekeeping sensors Aspect sensorsAspect sensors
3 axis magnetometer3 axis magnetometer 2 axis accelerometer +/- 50 g2 axis accelerometer +/- 50 g
Temperature sensorsTemperature sensors 1 onboard temperature sensor 0-1 onboard temperature sensor 0-
125 deg C125 deg C 3 external temperature inputs3 external temperature inputs
Power sensorsPower sensors 4 voltage monitoring circuits 0-10 V4 voltage monitoring circuits 0-10 V 4 current monitoring circuits 0- 4 A4 current monitoring circuits 0- 4 A
6 analog inputs, 12 bit 0-6 analog inputs, 12 bit 0-4.095V 4.095V
4 digital inputs4 digital inputs
12 bit resolution12 bit resolution 0-4.095 V input 0-4.095 V input rangerange
Pyro circuitsPyro circuits
Pyrolelectric devicesPyrolelectric devices Payload separationPayload separation Doors separationDoors separation Nosecone separationNosecone separation
8 individual circuits8 individual circuits Controlled by PCM-encoderControlled by PCM-encoder Synchronized to Lift-offSynchronized to Lift-off
PCM EncoderPCM Encoder
Pulse Coded ModulationPulse Coded Modulation 625 kbit/s bit rate625 kbit/s bit rate 8 timer signals8 timer signals Connects up to 8 slave Connects up to 8 slave
boardboard CPLD programmable logicCPLD programmable logic uC assembler codeuC assembler code ISP - In System ISP - In System
Programming Programming Bi Phase-L outputBi Phase-L output
Telemetry transmitterTelemetry transmitter Frequency: 2,2279 GHzFrequency: 2,2279 GHz Bit rate: 625 kbit/sBit rate: 625 kbit/s Power: 1 WPower: 1 W 4 antennas in tailfins4 antennas in tailfins Stable oscillator 0.2 ppmStable oscillator 0.2 ppm Slant rangeSlant range Receiver stations:Receiver stations:
AndenesAndenes TromsøTromsø SvalbardSvalbard mobile unitsmobile units
Telemetry formatTelemetry format
Word length: 8 bit (16bit)Word length: 8 bit (16bit) Frame length: 32 words (16 words)Frame length: 32 words (16 words) Format length: 32 framesFormat length: 32 frames
At 625 kbit/sAt 625 kbit/s Frame rate: 2,44 kHzFrame rate: 2,44 kHz Format rate: 76 HzFormat rate: 76 Hz
Experiments inputsExperiments inputs
ElectrometersElectrometers Several versions availableSeveral versions available 1-8 channels /slave board1-8 channels /slave board
Instrumentation amplifierInstrumentation amplifier Adjustable gainAdjustable gain
Digital interface, sounding Digital interface, sounding rocketsrockets CLK, MAJF, MINF, GATE,DATACLK, MAJF, MINF, GATE,DATA
Launch eventsLaunch events Countdown from T- 3 hCountdown from T- 3 h Possible holdsPossible holds Final science go: T-3 m Final science go: T-3 m Final payload go: T-30 Final payload go: T-30
ss LiftoffLiftoff Booster burnoutBooster burnout Doors separation: Doors separation:
T+44s T+44s Nosecone sep: T+62sNosecone sep: T+62s Splash: T+300sSplash: T+300s