1 / 15

Project „ p of the Sky”

Institute: ISE, group: PERG CCD USB 2.0 Camera for the Pi of The Sky Project Grzegorz Kasprowicz semester: T1EL-PE Cooperation with Soltan Institute for Nuclear Studies dr hab. Grzegorz Wrochna. Project „ p of the Sky”. Motivation Search for optical counterparts of Gamma Ray Bursts

hanh
Download Presentation

Project „ p of the Sky”

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Institute: ISE, group: PERGCCD USB 2.0 Camera for the Pi of The Sky ProjectGrzegorz Kasprowiczsemester: T1EL-PECooperation with Soltan Institute for Nuclear Studiesdr hab. Grzegorz Wrochna

  2. Project „p of the Sky” • Motivation • Search for optical counterparts of Gamma Ray Bursts • Investigate undocumented observations of point-like flashes in the sky • Open a new window on the Universe - short time scale observations

  3. Project „p of the Sky” • Goals • Observe non-stop almost all visible sky with a few seconds resolution • Record sky images 15s before and after satellite GRB trigger • Search for point-like flashes

  4. Project „p of the Sky” Apparatus: • 16 CCD cameras, 2000x2000 pixels each • f=50mm lenses, each covering 35ox35o • full frame (128 MB) readout every 6s • real time processing of all data (trigger) • remote operation, controlled over internet

  5. Aim of the presented work • General : building CCD Camera for the Pi of The Sky project • In current semester :building a final version of camera

  6. Specification: • Sensor: Fairchild CCD442A • USB 2.0 Interface • Programmable readout time (1s-100s) • 2048x2048 active pixels, 15x15um each • 16 bit ADC • Programmable exposure ( shutter) time (0.01...655s) • MPP/BC mode • Amplification (0..15dB e/ADU) • Controller software upgrade via USB • FPGA configuration upgrade via USB • Peltier cooling of CCD • Temperature measurement: CCD, case, ambient • CCD temperature control • Build in mechanical shutter • Focusing motor control

  7. Own work done in current semester: • Building and testing prototype, based on MAX series PLD • Building the final version of camera based on Cyclone series FPGA • Designing and constructing a mechanical part of camera (case, shutter, cooling) – with help of my brother

  8. Hardware structure ofthe project(part of all) • - 16 identical cameras • - USB HUB • - cameras supply • ( ~ 5W each) • - cooling(Peltier cells) • (~ 30W each) • common power • supply(+7V,~17V) • /100W • Common cooling supply • +12V/500W • - water radiator & fan • PC-cooling

  9. II Prototype -Construction optymizing (electrical) -Testing USB transmission, developing USB controller & FPGA programms

  10. Prototype control application „First light” - pinhole - visible readout noises, caused by digital circuits and not optimised connections Grayscale to color conversion used

  11. CCD USB 2.0 Camera block diagram - USB interface - FPGA + config - DRAM - ADC+CDS - Video amplifier - Supply - CCD temperature control - motors drivers - CCD supply & drivers

  12. Mechanical part of camera -Shutter made up with HDD linear motor , much cheaper than commercial solutions (500$) -tested endurance limit (over 150 hours,6 cycles per second) -Focusing motor -Case -Inactive gas outlet -Lenses -Cooling(in future will be used water block) -supply,motor and USB connectors -gas inlet -fixing

  13. Final version Power supply board Top view Main board Side view

  14. Final version Shuter,foc.motor Completed construction Completed construction „First shot”

  15. Achieved results: • Building and testing II protptype • Building and testing final version of camera and one’s mechanical part Further plans: • Implementation of more advanced algorithms, like Windowing, Drift Scan, Tracking is possible because configuration of camera takes about 5% of FPGA resources, and in this direction construction will be developed.

More Related