2012

CoDR

1

UPR-R(river) P(rock) XU n I v e r s I t y o f P u e r t o R I c o

CoDR October 4, 2011Presentation Version 1.0

2012

CoDR

CoDR Presentation Content

2

• Section 1: Mission Overview– Mission Overview– Theory and Concepts– Mission Requirements (brief, top level)– Concept of Operations– Expected Results

• Section 2: Design Overview– Design Overview– Functional Block Diagrams– Payload Layout– RockSat-X 2011 User’s Guide Compliance

• Section 3: Management– Team Organization– Schedule– Budget– Mentors (Faculty, industry)

• Section 4: Conclusions

2012

CoDR

Section 1

Mission Overview

3

2012

CoDR

Mission Overview

4

Mission Statement

In representation of the University of Puerto Rico, as a team we intend to get involved in the renewed project RockSat X 2012. Our purpose is:

• To expand our knowledge and that of others in aerospace related areas. Carefully selected, the experiment that will be carried out includes mass spectroscopy to analyze molecular species and their respective partial pressures in near space. Also, we’re going to apply our new knowledge so that we don’t make the same mistakes.

• In this way we will contribute with valuable information for interstellar travel and advances benefiting the space bound crew to collect and replenish essential resources such as water and fuel. We will try our best to bring new and useful data to our investigation.

2012

CoDR

Mission Overview

Carrying out this experiment involves a set of minimum requirements. Our main tool will be two mass spectrometers (Residual Gas Analyzer, RGA) that will identify molecular species from 1 to 200 amu. Computers need to be modified for the communication with the mass spectrometry by telemetry. This is one of the most important requisites needed to carry out the project properly. It is also necessary to have a basic knowledge of science in the areas of chemistry and physics to understand several events/concepts that will be taking place.

5

2012

CoDR

Mission Overview

1. We want to encourage future space voyagers to use gas molecules present in outer space to capture and synthesize necessary resources, such as water and fuel.

2. In this experiment, we expect to determine the abundance of different types of gas molecules that exist in the outer atmosphere and near outer space, using mass spectroscopy.

6

2012

CoDR

Mission Overview

• Our data will provide preliminary information about the type of molecular gases that are found at different altitudes and densities.

• With this data, scientists can develop and apply mass spectrometry mechanisms for the capture and separation of specific species of gas molecules, or atoms to make the necessary resources needed in long distance space flights.

7

2012

CoDR

• The Mass Spectrometry (MS) is an instrumental analytical method used to determine atomic masses using the combined properties of mass and electric charge. This will help to detect and measure the relative abundances of atomic and molecular species.

• The instrument will also measure the total amount of gas and the partial pressures of the species studied.

• The substances identified by electric charge/mass ratio will be:– Positively charge the molecules (ionize them).– Accelerate the ions through an alternating electromagnetic field that acts as a filter.– Detect the number of charged species vs. atomic mass.

Theory and Concepts

8

2012

CoDR

How the instrument works:

Magnetic Filter

Some limitations:• Big and Heavy magnet weight is over 500 lbs.•Limited Flexibility

Electro-Magnetic Filter

Some Advantage •Small and lighter ionizer and quadruple weight is 5 lbs.•More flexible to modifies to this experimentation

9

2012

CoDR

How the instrument works (1):

Step 1 Create the ions•Measure the amount of the gas•Measure the amount of the electrons that pass through by the source grid•Measure the partial pressure•Produce a beam of electrons [70eV] creating ions of the species•Create a magnetic potential to accelerate the ions through the quadruple

2012

CoDR

How the instrument works (2):

Step 2 Filter the ions•A quadruple mass filter consisting of an arrangement of 4 metal rods with a time-varying electrical voltage of the proper amplitude and frequency applied•This mechanism helps us to select which ions will pass by his charge which isrelative to their masses.•The instrument can be program to scan only selected mass, applying a specific current, move and measure only the mass that we want to measure. •Or can scan all the mass to 1 – 200 amu and see what we have in the time.

2012

CoDR

How the instrument works (3):

Step 3 Detect the filtered ions•The ions that pass through the mass filter are focused toward a Faraday cup and the current is measured with a sensitive ammeter.• The resultant signal being proportional to the partial pressure of the particular ion species passed by the mass filter.

2012

CoDR

How the instrument works (4):

Step 4 Amplify the signal

•Amplifies the current that the faraday cup receive approximately 10-14 amps. •The ions striking the B/A detector wire produce a comparatively larger current, on the order of 10-9 amps at 3.3 x 10-7 Torr.

2012

CoDR

Concept of Operations

t ≈ 1.3 min

Altitude: 80 km

Star Ionizing, Mass Spectra

t ≈ 15 min

Splash Down

t ≈ 1.7 min

Altitude: 95 km

ReScan, Deployment of

secong MS

-G switch triggered

-All systems on

t = 0 min

t ≈ 4.0 min

Altitude: 95 km

Start recovery sequences

Apogee

t ≈ 2.8 min

Altitude: ≈120 km

End of Orion Burn and Filaments ON

t ≈ 0.6 min

Altitude: 60 km

t ≈ 4.5 min

Altitude: 80 km

Retract Complete

Altitude

t ≈ 5.5 min

Chute Deploys

14

2012

CoDR

Expected Results

• Mass Spectrometry output results in an integrated mass spectrum with all identifiable species represented by characteristic fragments of specific mass/charge ratio in specific proportions.

• Analyzing the results will determine what species are in the lower outer space.

– Verify the near space and space composition. – Identify possible sources of energy and/or useful materials.– Help and contribute to the scientific community.

15

2012

CoDR

16CoDR

Expected gases in our atmosphere

N2, O2, Ar, CO2

He, Ne, Kr, Xe, H2, N2OCH4, O3, H2O, CO, NO2, NH3, SO2, H2S

Conc

entr

ation

of N

2, O

2, O

3, H

e

16

2012

CoDR

Now, why two Mass Spectrometer?• Analyzing the expected results, we conclude that

we need two different MS.

In the first one, it’s quadruple will measures all masses between 1 and 200 amu, to see all the species and their fragments that are in the outer space.

In the second one, it’s quadruple will measures just the masses that we select to look, programming the instrument. This will help to verify the composition of the atmosphere .

17

2012

CoDR

Section 2

Design Overview

18

2012

CoDR

Design Overview

• We will use a stacked configuration.• The sensor will be the same as a previous flight, two Mass Spectrometers.

Mass Spectrometer #1 Mass Spectrometer #2

19

2012

CoDR

Modifications & Improvements

Modifications

•Improve Power supply.•Improve Actuator devices.

Improvements

•Replace all cables that were not made of teflon cable insulators. •All wiring harness must have independent connectors.•Software v.2.0 (UNIX Space Programming)

20

2012

CoDR

Subsystem Overview

21

2012

CoDR

System Level Block Diagram

2012

CoDR

Trade Studies

• For mainboard considering cost, number serial ports, power requirements and form factor, option A for the prototype will be VIA EITX-3001 Em-ITX.

• For I/O Board considering cost, configuration options and form factor, option A for the prototype will be RS-232 Relay Controller 4-Channel 5 Amp SPDT + 8-Channel 8/10-Bit A/D which has more option for configuring the relay and has a smaller footprint.

23

2012

CoDR

Risk Matrix

Risk 1 – Computer system crash during flight and data could not be collected mission objectives could not be completed.Risk 2 – A boom arm failure during deployment occurs and probe performs measurements inside the payload.Risk 3 – Telemetry error between x86computer and wallops leaving experiment data only on the payload storage which will have survive landing on the sea.Risk 4 – Power failure on some of the component making function ability limited.

24

2012

CoDR

Design Description

25

2012

CoDR

Mechanical Design elements

26

Mechanical Front view design

2012

CoDR

3D image of our payload

27

2012

CoDR

Actual Payload

28

2012

CoDR

Mass Spectrometer

29

2012

CoDR

Exploded Mass Spectrometer with Electronics

30

2012

CoDR

Ionizer Assembly and Quadrupole Filter

31

2012

CoDR

Mass Spectrometer RF Electronics Stack and Computer Control

32

2012

CoDR

Electrical design element

33

2012

CoDR

System ElectricalDiagram

34

2012

CoDR

Wallops Interfacing: Power

35

Power Connector--Customer SidePin Function1 Computer Power2 DC to DC power in (24V)3 DC to DC power in (24V)4 DC to DC power in (12V)5 Ground6 Ground7 Ground8 Ground9 Computer Power

10 Boom arm 111 Boom arm 212 Ground13 Ground14 Ground

15 Ground

2012

CoDR

Wallops Interfacing: Telemetry

36

Telemetry Connector--Customer SidePin Function Pin Function1 TBD 20 to mainboard parallel port 2 TBD 21 to mainboard parallel port 3 TBD 22 to mainboard parallel port 4 TBD 23 to mainboard parallel port 5 TBD 24 to mainboard parallel port 6 TBD 25 to mainboard parallel port 7 TBD 26 to mainboard parallel port 8 TBD 27 to mainboard parallel port 9 TBD 28 to mainboard parallel port

10 TBD 29 to mainboard parallel port 11  to mainboard parallel port 30 to mainboard parallel port 12  to mainboard parallel port 31  not used13  to mainboard parallel port 32  to mainboard COM114  to mainboard parallel port 33  to mainboard COM115  to mainboard parallel port 34 not used16  to mainboard parallel port 35 not used17 not used 36 ground18 ground 37 ground19 ground

Analog to digital converters line are not being use in the payload design for now because all sensor communicate via serial port to the computer directly

2012

CoDR

User Guide Compliance

37

Requirement Status/Reason (If needed)

Center of gravity in 1” plane of plate Yes

Max Height< 12” No – 14”

Within Keep-Out Yes

Using < 10 A/D Lines Not in use

Using/Understand Parallel Line Not in use

Using/Understand Asynchronous Line 19200 Baud

Using X GSE Line (s) 1

Using X Redundant Power Lines 1

Using X Non-Redundant Power Lines 3

Using < 1 Ah Total Ah 0.349

Using ≤ 28 V 24V & 12V

Weight ≤ 30lbs. No - 35lbs.

2012

CoDR

Section 3

Management

38

2012

CoDR

Team Organization 2011-2012

39

Rocksat X 2012Team Organization

Eduardo Feliciano (Secretary)

Eduardo Feliciano (Secretary)

Inés Robles(Team Member)

Inés Robles(Team Member)

Luis Betancourt(Team Member)Luis Betancourt(Team Member)

Christian Almanzar(Team Member)

Christian Almanzar(Team Member)

Pedro MeléndezSoftware Technical

Leader

Pedro MeléndezSoftware Technical

Leader

Aihab Aboukheir (Timekeeper)

Aihab Aboukheir (Timekeeper)

Edith Alicea(Team Member)

Edith Alicea(Team Member)

Adriel Ortiz(Team Member)

Adriel Ortiz(Team Member)

Angélica Guzmán(Team Member)

Angélica Guzmán(Team Member)

Gladys Muñoz(Faculty Support)

Gladys Muñoz(Faculty Support)

Jaime Santillán (Team leader)Jaime Santillán (Team leader)

Rodrigo Morell(Team Member)Rodrigo Morell

(Team Member)

Gabriela Padilla(Team Member)Gabriela Padilla(Team Member)

Laura Bimbela(Team Member)Laura Bimbela

(Team Member)

Samalis SantiniTeam MemberSamalis SantiniTeam Member

Edgardo Martínez (Team Member)

Edgardo Martínez (Team Member)

Eva Frontera(Team Member)

Eva Frontera(Team Member)

Marie C. Padín(Team Member)Marie C. Padín(Team Member)

Abraham García(Team Member)Abraham García(Team Member)

Maxier Acosta(Team Member)

Maxier Acosta(Team Member)

Oscar Resto (Mentor/PI)

Oscar Resto (Mentor/PI)

Milarys Hernández (Team Member)

Milarys Hernández (Team Member)

Gloricel Ramos(Team Member)Gloricel Ramos(Team Member)

Felix Santiago(Team Member)Felix Santiago

(Team Member)

Orlando X Nieves(Team Member)

Orlando X Nieves(Team Member)

2012

CoDR

Schedule

41

• The entire schedule will be made after the Payload Assessment.

2012

CoDR

Budget

42

We are going to determine the budget after we work with the payload assessment, because we were working with the presentation first.

2012

CoDR

Section 4

Conclusions

43

2012

CoDR

Conclusions

44

In representation of the University of Puerto Rico, as a team forming the Rocksat X 2012 project, we intend to accomplish a successful launch an experiment in order to expand our knowledge in aerospace related areas. The experiments performed in space were mass spectroscopy to analyze molecular species and their respective partial pressures. As this project was launched before, the focus will be to acquire complete data about the partial pressure of the species’ masses found in near space and space so a publication could be made with a more general amount of data.