BalloonSat Mission to the Edge of Space€¦ · Web viewThe BallonSat DJDoppler shall ascend to...

BalloonSat Mission to the Edge of Space Proposal

BalloonSat Mission to the Edge of Space

Proposal for Team SSTEric James, Vlad Soukhovei, John Marcantonio, Kara Bongiovanni, Sean Rivera

ASEN/ ASTR 2500September 16, 2009

7:00 AM

1Gateway to Space September 16, 2010SST

Chris Koehler, 09/18/10,

OK proposal. Some parts are better than others. Need more on what and why section. Please see comments below.


Mission Statement The BallonSat DJDoppler shall ascend to an altitude of approximately 30km while collecting and storing telemetry in the forms of air density (kg/m3) and sound waves. We will use this data in order to discern a correlation between the change in the characteristics of sound waves (i.e. frequency and amplitude) and the change in air density. In finding this correlation, we will see how these characteristics of sound waves change with air density.

OverviewOur understanding of sound waves is fairly limited in the sense that most of what we know about sound is from studies done at low altitudes. Due to the low air density at high altitudes sound waves do not behave as they do at lower altitudes. This causes a problem for any communications device that is used at high altitudes. For example, military pilots that fly at high altitudes complain that as they ascend it becomes harder to hear the communications on their radios. By gaining a better understanding of how sound waves behave at high altitudes where air density is far lower than on the surface of the earth we will gain knowledge of how to implement close range radar between high altitude aircraft. We could also use the data collected from DJDoppler to learn more effective ways of designing radio systems that will improve communications at high altitudes.

Technical OverviewHow we will achieve what we wish to discover:This BalloonSat – DJDoppler - will be a rectangular prism constructed out of foam core, hot glue, and aluminum tape. DJ Doppler will ascend to 30km using a high altitude helium balloon with a 2.4mm diameter nylon cord attached to its base. DJDoppler will attach to this cord using a 3mm tube that extends all the way through the center of the BalloonSat. Inside DJDoppler there will be two compartments separated by a foam core wall. In one of the compartments – which will not be vented - we will have a heater along with foam insulation in order to keep the internal temperature above -10oC. Also, this compartment will contain our AVR microcontroller which will record all of the data we collect. In addition we will have our HOBO which will record the climate conditions of our satellite including internal and external temperature, light intensity, and the humidity of the BalloonSat. This section will also contain a camera to take a picture every 20 seconds of outside our BalloonSat throughout the entire launch. The other compartment – which will be vented – will contain a speaker for emitting a constant tone. On the opposite wall of the compartment – facing the speaker - we will have a digital audio recorder to record the tone that is emitted by the speaker. The other instrument contained in this compartment will be a gauge that measures the air density. After the BalloonSat’s flight, we will take the data of the digital sound recorder and import it into the audio analysis program “Audacity.” Using the data collected by our sensors (HOBO, air density sensor, and the GPS on the flight string) we will define a correlation between the characteristics of the sound wave and the change in air density.



Define or discovery, determine, confirm? Which really describes your end goal?


Is this pressure or something else? Also, how is it’s output stored.


Distance between speaker and recorder? Is there a minimum?


What sends the tone to the speaker? At what frequency or frequencies?


This was not specified as a capability of the HOBO you are getting.


Sound data too?


Good overview but there are some fundamental differences from our flight and the military pilots example. Still this section is well written.


This mission has done before but several teams. Some have done a good job some have done a terrible job. One has done an outstanding job. They were from CSU. I would like to see your team do some real research on this time of experimentation and what has been done at this altitude or similar environments. Consider looking at and hypothesizing other environmental factors (i.e. oxygen, ozone, etc) that might affect your experiment. Also this section should have been ~one page. More on this in your DD rev A.


Illustrations:



Drawings are good but labels and dimensions are smaller than the font size specified in the RFP. HOBO in the drawing is actually smaller than the camera. Something is off there. Where is the flight string tube?


Required hardware and where we plan to get it:For the hardware that is not provided, we plan to order the components online. This hardware includes our Digital Voice Recorder, Portable Weather Station, Weather Station Data Transfer System, and a Speaker.

Digital Voice REC1GB FL Memory-Replaces ICDPX820o http://www.provantage.com/sony-icdpx820~7SNY911E.htm o Weight: 68g (batteries included)o Power requirement: 2 AAA batterieso Temperature requirement: unknown

Brunton ADC-proo http://www.amazon.com/Brunton-Handheld-Atmospheric-Center-Meter/dp/

B00194D1Q6o Weight: 158.76go Power requirement: unknowno Temperature requirement: unknown

Speaker - 0.5W 8Ohm sku: COM-09151o http://www.sparkfun.com/commerce/product_info.php?products_id=9151 o Weight: 4.5go Power requirement: .5Wo Temperature requirement: unknown

Brunton ADC-IRo http://outdoor-merchants.amazonwebstore.com/B002LBNDUU/M/

B002LBNDUU.htm

How we will turn our design into an actual satellite:We will turn our design into an actual satellite through a process of steps. First, we will program our speaker to play a constant tone as a sound output. After programming the speaker, we will then procure our other self-sustained experimental instruments and ensure their functionality along with that of the speaker through various tests to ensure the accuracy of the experiment and the safety of the satellite itself. These tests are described in detail within the next section. Following the tests of the components, we will build a structure to house all of the equipment in a way to ensure their survival of the flight. We will then test this structure, as with the components so as to ensure its reliability as a satellite structure. After rigorous testing of our satellite we will then incorporate all of the tested equipment into the finalized, fully functioning BalloonSat DJDoppler.

How we will test our design to ensure it meets all our science and mission objectives:We will put our design and its components through rigorous testing in order to insure its functionality throughout the entire flight. To test the integrity of our structure that houses our equipment we will conduct a “Drop Test.” In this test, we will fill our structure with 800 grams of simulated weight and drop it a minimum of two stories. In order to ensure that our satellite will successfully keep an internal temperature of greater than -10oC we will conduct a “Freeze Test.” This test involves putting an experimental satellite into a cooler with dry ice to simulate the temperatures it will experience along its flight. This test will be especially necessary to



Why not make sure the whole BalloonSat weighs 850?


This statement really needs to be expanded with much more details on how you will do this.


Seems like the wrong word.


Consider a variable tone.


This information should be in a table format. Provided hardware should also be shown in the table and summaries of mass.

http://outdoor-merchants.amazonwebstore.com/B002LBNDUU/M/B002LBNDUU.htm

http://outdoor-merchants.amazonwebstore.com/B002LBNDUU/M/B002LBNDUU.htm

http://www.sparkfun.com/commerce/product_info.php?products_id=9151

http://www.amazon.com/Brunton-Handheld-Atmospheric-Center-Meter/dp/B00194D1Q6

http://www.amazon.com/Brunton-Handheld-Atmospheric-Center-Meter/dp/B00194D1Q6

http://www.provantage.com/sony-icdpx820~7SNY911E.htm


ensure the satellite’s continued functionality throughout the flight and especially through the tropopause. Since our satellite will possibly encounter the harsh conditions of being dragged along the ground by a parachute we will conduct a “Stair Test.” This involves kicking our experimental satellite - filled with 800 grams of simulated weight – down the stairs in the ITLL. Due to the fact that our satellite will be ascending to its prospective altitude of 30km via satellite, we will need to test the strength of the satellite’s attachment to the string and the effect of high winds and turbulence during the flight on our satellite. To do this we will conduct a “Whip Test” in which we will attach our satellite to a rope and swing it around. In addition to these four mandatory tests, we will also conduct two other tests to further ensure our satellite’s reliability. To test our sound transmitting and receiving equipment we will conduct a “Sound Test.” In this test we will generate a tone using our speaker and record that same tone with our digital voice recorder. The data from this test will ensure the functionality of our equipment and will give us a baseline set of data to which we can compare our flight data. Finally we will conduct an “Imaging Test.” This will ensure the functionality of our camera and its program. After conducting all of these tests, we will be sure that our satellite will meet all of our science and mission objectives.

How we will keep people from getting hurtWhen doing any cutting, whether foam core or other materials needed for the BalloonSat, the person doing the cutting will have an area free of clutter to avoid bumping into things and accidently cutting themself. Additionally this person will make the rest of the team aware in advance so that no one bumps into or otherwise interferes with the person who is cutting. When testing the BalloonSat structure using the drop, whip, and other such tests, the tester will make the rest of the team aware so they can retreat to a safe distance in the event that the BalloonSat fails and debris causes a hazard. Overall in staying safe, all team members will let the others know whenever they are doing something that could possibly be dangerous so that they can look out for the safety of themselves and every other individual.

Special Features of our DesignVented Compartment-The BalloonSat DJDoppler will have a vented compartment separate from all other hardware for the speaker, portable weather station, and audio recorder. This feature enhances our design because it will insure that none of the other hardware in the BalloonSat interferes with playing and recording of the constant tone emitted by the speakers.

Portable Weather Station-This lightweight instrument will give us accurate environmental readings of the compartment in which our experimental equipment will be housed. This instrument will allow us to see the air density as a function of time so that we can compare it to the change in our sound data.

Speaker-The small speaker that we will be including inside the BalloonSat DJDoppler will be responsible for emitting the tone we will be analyzing. It is lightweight and small so our BalloonSat will not be large and bulky



How will you sync this with your sound data?


Good. I am glad you have this section.


Also use common sense and make sure during all tests at least two team members are present.


Themselves


Full mission sim test (like flight)?


This is a good test to determine if the recorder works but how do you test the effects of air density or that when changes occur you set up will record them or in other words you know how to determine the effects by looking at your data.


Balloon maybe?


Make sure you balloonsat is operating during this test (HOBO too).


Digital Audio Recorder-The digital audio recorder that we will be flying in our BalloonSat will be responsible for collecting the data of the change of the constant tone emitted by the speaker. It is a high quality sound recorder and will allow us to easily import the collected data directly into an audio analysis program so that we can compare it to our change in air density.

Data retrieval: The data pertinent to the main experiment will be collected and stored on a digital recorder. The recorder will collect data every minute, recording the output produced by the speaker(s). In order to insure that the process of data collection goes according to plan, we will need to test our data collecting equipment before launch. During testing, we will record data in short segments in order to isolate any problems. Thus, if a problem arises we will know the cause. Before launch, we will quickly test if our data collecting equipment is working. While in flight, it is crucial that our BalloonSat has enough power. The experiment will not be completed if the there is a depletion of power before the BalloonSat reaches the altitude of approximately 30,480 meters. After the BalloonSat has been retrieved we will take the data collected by the digital recorder and process it using “Audacity”. Also, using the data transfer hardware for our portable weather station, we will download our environmental data to the computer. We will also retrieve the data from the HOBO data collector and check if it’s consistent with all of our other data.

Functional Block Diagram



Why switch on speaker?


Is a switch need on the Weather Station? How is data stored on weather station


Where is the hobo?


Process or program?


What is this going to be? How will you really do the analysis on the computer? What will you look at/for and how will you process the 2.5 to 3 hours of audio data? Will you listen or look?


How we intend to meet the requirements of the RFP:In order to meet the requirements of the RFP we will do multiple things. First, in order to meet the temperature requirement, we will install heaters inside our satellite to keep it above -10˚C throughout the flight. We will also ensure that the total weight of our satellite does not exceed the 850 gram maximum. Our BalloonSat will have a 3mm diameter metal tube going all the way through the center of the satellite to allow it to attach to the flight string. We will collect data in the form of ascent and descent rates from both our portable weather station and the GPS system attached to the flight string. We will also be flying all of the required hardware including the HOBO, Canon Digital Camera, and Heaters. Lastly, our satellite, which will be constructed out of foam core, will be labeled with our contact information and an American flag.

Management and Cost Overview

Week Mtng dates Deadlines/Tasks/Goals Week of 9/13 9/15, 9/17 Complete and finalize the proposal for the project due 9/16. Week of 9/20 9/22, 9/24 Internal design review at team meeting on 9/22

Design complete by 9/24 Prepare DD Rev A/B and CDR slides.

Week of 9/27 9/29,10/1 Finish DD Rev and CDR slides. Complete prototype structure. Perform Cold test. (prototype structure test)

Week of 10/4 10/6,10/8 10/5-DD Rev A/B and CDR slides turned in. Acquire all hardwarePrototype designs for subsystems (circuit, thermal, power, data collection)

Week of 10/11 10/13, 10/15 Complete prototype testing (circuit, thermal, power, data)Begin final design testing.

Week of 10/18 10/20, 10/22 Complete final design testing by 10/24.Design Document Review C

Week of 10/25 10/27, 10/29 10/26 Bring all Hardware.10/28 Mission Simulation TestComplete Launch Readiness Review.

Week of 11/1 11/3, 11/5 11/02 LLR DUE. 11/05 Weigh in and TURN IN Satellite by 2:00pm DLC 270A (1)11/06 LAUNCH!

Team member bios:Eric: Eric is a Freshman in Aerospace Engineering Sciences and Applied Mathematics at the University of Colorado at Boulder. He was born December 2, 1991 at Memorial Hospital in Colorado Springs, CO. Some of his interests include designing, constructing, and flying model rockets. In the future, Eric hopes to be working on designing spacecraft for human transportation.



What about after launch? This schedule needs a lot more detail. It should be like a task list/plan. What about team meetings? More details on testing. This section should have some intro paragraphs.


Very bad and not meeting the requirement in the RFP


Daniel: Daniel was born in Boulder, CO and has lived here for his entire life. He is a student of the University of Colorado at Boulder and is a part of the Aerospace Engineering program. His father serves as his inspiration because he graduated from CU Boulder as an electrical engineer many years ago and has work hard to accomplish his goals. Daniel loves athletics and the outdoors, so he spends free time in the mountains by snowboarding, hiking, and biking. Daniel hopes to travel to space one day.

Sean: Sean was born in Colorado Springs Colorado on June, 15 1992. He has two engineering parents, who inspired him to become an engineer, and a younger sister, Rachel, who is 16. His hobbies include rock climbing, chess, pyrotechnics and programming. When Sean graduates he hopes to work for a company that is helping humanity get to space. I hope to have a great time working with my team and maybe learn some stuff to.

Vlad: Vladislav Soukhovei was born August 1st, 1992 in Russia. Twelve years later, he moved to the United States. Currently, he lives in Thornton, CO with his parents and sister. Music is a big part of his life, and both his parents are musicians. However, Vlad decided to do something radically different than his musical parents. Vlad is in the Aerospace Engineering program at CU Boulder because he wants to be in field that required a lot of creativity, as well as understanding of the sciences and mathematics. At the moment Vlad is not completely certain about what to do in the future, but plans to keep his options open and continue pursuing his first degree.

Kara: Kara was born on January 20, 1992 in Buffalo NY. Both her parents are engineers so Kara was inspired to pursue an engineering degree because of them. Kara is also in the NROTC unit at CU and wishes to one day become a Naval Officer and Aviator. Kara is also on the CU Women’s Hockey team and has been playing hockey since she was 10. Kara is an Aerospace Engineering major at CU.

John: John is an Aerospace Engineering Major at the University of Colorado at Boulder. He was born on June 24, 1992 in Arlington Heights, IL. John has loved planes ever since he was a child. His favorite was the P-51 mustang. He was drawn to Boulder though not only because of the beautiful environment and great skiing but also because of the great aerospace program they currently boast among top ranking universities.

Team Member Responsibilities:

Team Member Phone School Address SkillsSean Rivera 719-660-4464 CU at Boulder

College of Engineering

[email protected]

-BASICProgramming-Leadership

Eric James 719-433-2462 CU at Boulder College of Engineering

[email protected]

-Audacity prgm-Physics

Kara Bongiovanni

734-740-3681 CU at Boulder College of

[email protected]

-Leadership-Communication


mailto:Eric.james@colorado

mailto:Sean.rivera@colorado


EngineeringJohn Marcantonio

952-270-3308 CU at Boulder College of Engineering

[email protected]

-Microsoft Word 2010-Communication

Dan Flora 303-579-1271 CU at Boulder College of Engineering

[email protected]

-Visual Basic-Organization

Vlad 303-960-1161 CU at Boulder College of Engineering

[email protected]

-Google Sketch-Up-Formal writing

Team Member Titles Specific TasksSean Head Engineer/Project Leader

Programming Engineer-Makes executive team decisions-systems programming

Eric Testing EngineerAsistant Programming Engineer

-Subsystem testing-software modification-Programming

Kara Hardware EngineerAsistant Management Engineer

-Order/acquire all Hardware-Budget management-Team Coordination

John Management EngineerAssistant Manufacturing Engineer

-Time management -Team Coordination (meetings, emails)-Subsystem installation

Dan Manufacturing EngineerAssistant Testing Engineer

-Build satellite structures-Subsystem installation-Subsystem testing

Vlad Design EngineerAssistant Project Leader

-Satellite design-Satellite design modifications-Assist project leader in important decisions

How we will keep our budget:All hardware that we choose to buy for our satellite has and will be compared to all similar hardware products available. This process will insure getting the best deal for the hardware that we need and minimize the total cost of our satellite. Also, we will use foam core to construct our satellite to reduce the cost of raw materials. The group will pay for test batteries so that this isn’t an unknown variable in our $300 budget. Even so, our group has budgeted $95 for after hardware expenses and other unknown costs. Kara will be in charge of keeping a detailed and accurate track of the groups spending as well as making sure that the $300 budget is not exceeded.



Good.


Spelling


Could be in text form or possible combine table below as well.


No last name?


Itemized Budget:

Component Cost WeightFoam Core Provided ?HOBO Data Logger Provided 25.0 gramsBatteries * ?Heater Provided 100.0 gramsSwitches Provided 20.0 gramsDigital Audio Recorder $55.00 (after shipping) 68 grams w/ batteriesPortable Weather Station $109.60 (after shipping) 158.76 grams w/batteriesSpeaker $6.53 (after shipping) 4.5 gramsCanon Digital Camera Provided 220.0 gramsBrunton ADC-IR $34.95 (after shipping) N/ATotal $206.08 * 596.26 grams *** Leaves $95.92 for batteries and spare parts.**Leaves 203.74 grams for foam core and batteries.



Should be answered in a proposal


Should be answered in a proposal.

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