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Measurements & Data Analysis Laboratoryjott/Measurements/... · Measurements & Data Analysis...
Transcript of Measurements & Data Analysis Laboratoryjott/Measurements/... · Measurements & Data Analysis...
Measurements & DataAnalysis Laboratory
Lab Exercise 028 August – 31 August, 2017
Head Grader: Anna [email protected]
Outline
• Motivation• Basic Expectations• Lab Safety• Course Structure• Technical Memos
Motivation
Theoretical Model Fundamental science + System and design constraints
Model Validation& Refinement
Experiment &System Design
� d x�M +Cu+ kx = 0�� dt2 ��
2
u = dxdt
ExperimentsExperimental process +Measurement techniques +Data interpretation and analysis
• Retractable,• Reusable,• Lightweight,• Cost constraints,• Redundancy,• System Integration,• et cetera
• Facility design,• Strain gauges,• Repeatability,• Converged statistics,• Safety,• Cost,• et cetera
‘Coursework’
Product TestingExperimental process +Repeatability +Realistic Operating Conditions
Reliability &Durability
Motivation
Theoretical Model Fundamental science + System and design constraints
Model Validation& Refinement
Experiment &System Design
� d x�M +Cu+ kx = 0�� dt2 ��
2
u = dxdt
ExperimentsExperimental process +Measurement techniques +Data interpretation and analysis
• Retractable,• Reusable,• Lightweight,• Cost constraints,• Redundancy,• System Integration,• et cetera
• Facility design,• Strain gauges,• Repeatability,• Converged statistics,• Safety,• Cost,• et cetera
Hands-on experience
Product TestingExperimental process +Repeatability +Realistic Operating Conditions
Reliability &Durability
Basic Expectations
Basic Expectations
• Be Present (physically and mentally)– Attendance is Mandatory
• Un-excused absence => No credit• For credit => Contact TA and obtain a University Excused Absence Form
– Late arrivals (to Lab)• 10% penalty on Technical Memo
– No outside work
• Be Prepared– Come with knowledge of lab procedure and objectives– Some students find bringing a flash drive is helpful.– Ask questions about the lab procedure if anything is unclear.
Protip: Do a ‘thought’ experiment beforehand with the handouts.
Early is on time,on time is late
Basic Expectations
• Be Respectful– Pay attention to directions from the Instructors
• Both during lecture and ‘benchwork’ portions of the lab– Follow directions when they are given
• Ask questions later – it may be a matter of safety– Treat equipment with care!– Be aware of what you are doing
• DO NOT perform an exercise until you are exactly sure what you are doing (i.e. be deliberate)
• Be Safe– Lab safety is everyone’s responsibility, starting with YOU.
Failure to follow safety guidelines results inejection from lab, and no credit for assignment.
Why?
Lab Safety: Motivation
“I t is very difficult to change principal investigators'attitudes,”
says James Gibson, UCLA's director of environmental health and safety. All too of t en,
researchers in laboratories aroundthe country still work alone, and
orwithout proper super visionprotection.
“In many cases, academic freedom is more important than safety,”
- Jim Kaufman, President of theLaboratory Safety Institute in Natick,Massachusetts
-------------------------------------------------------------------------------“A death in the lab,” Nature, 472, 270-271 (2011)
Lab Safety:Ground Rules
Safety is priority #1 for everyone in the lab.
• No Food/Beverage• No Horseplay• No Headphones• No Cell Phones• Pay attention: Do not be careless• Only use areas of the lab designated for AME2123• Be aware of your surroundings
– Carelessness with equipment can hurt you and your neighbors
If you are not 100% sure what you are doing is right or safe, STOP, and ASK for help!
Lab SafetyLaboratory Dress Code
• Closed toed shoes– [No Flip-flops], you will be made tochange prior to beginning a lab
• Avoid excessively baggy clothing
• Use hair ties– Keep long hair up/away from face & equipment
• Remove (or tape down) loose jewelry– Hazard for lasers, machinery w/ moving parts, etc.
• Vision-correction:– Use your most recent prescription glasses/contacts.
Lab Safety:B14 Lab Safety and PPE Documentation
Notebook in Brown Book Shelf
• Personal Protective Equipment (PPE)– Safety Glasses
• Emergency Action Plan– Fire– Tornado
• Chemical Spill Kit– Floor-Dry– Absorbative Blanket
Course Structure
Course Structure
• Total of 4 Lab Exercises (E1-E4)• Each lab has ‘a’ and ‘b’ weeks
– 2 weeks on, 1 week off, except E0
• Pre-Lab Lecture– Thursday before Lab EXa IN CLASS– Content: Lab handouts and materials
• Deliverables (54% of total grade is lab)– Pre-Lab Quiz (10 %)
• Monday before Lab Exa, on Sakai
– Lab Notebooks (8%)• Turned in with technical memo
– Technical Memo (36 %)• By 2 PM 1 week after Lab Exb; Room 365, AME office
• All lab work is done in Groups, with an individually written report to be turned in for a grade
Course Structure
Pre-LabQuiz
TechnicalMemo
Group Work
Laboratory Exercise Deliverables
LabWeek ‘b’
LabWeek ‘a’
Pre-LabLecture(In Class)
Individual Work
Notebooks due
Course StructureMONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY
Week 0
Pre-LabLecture(In-Class)
Pre-Lab QuizPosted by Noon
Week 1
Pre-Lab Quiz:Complete by Noon
LAB WEEK ‘A’Week
2
LAB WEEK ‘B’Week
3Report Due
@ 2 PM(Mon Group)
Report Due@ 2 PM
(Tues Group)
Report Due@ 2 PM
(Wed Group)
Report Due@ 2 PM
(Thurs Group)
Pre-Lab Quiz Posted for Next
Lab
Note books due with technical memo. Place note books in the bag near where the reports are due!
Course Structure
• Lab syllabus:– Instructor
– John Ott– Office: 377 Fitzpatrick Hall– Phone: 631-8131– Email: [email protected]– Lab website: http://www.nd.edu/~jott/Measurements
– Teaching Assistants– Michael Wicks ([email protected]) & Erik Ross ([email protected]@nd.edu) - E1 –
Sensors and Calibration– Jessica Schiltz ([email protected])-E2 – Signal Conditioners– Brock Hedlund ([email protected])- E3 – Dyanmic Systems Response– Shirui Luo ([email protected]) - E4 – Solar Panels – Anna McDermott ([email protected]) – Head Grader
Course Structure
• Lab syllabus (cont.):– Grading (cont.)
– Tech memo– The grading for each lab, except for E0, will be:
– Pre-lab quiz. It will be posted on Sakai (AME20213) site by noon, the Friday before week A of the lab begins. The pre-lab quiz is due by noon on the following Monday.
– Pre-lab quizzes will count 10% towards total grade. They will be worth 1 point/question. There is no Week B quiz. It is the student’s responsibility to know how to use Sakai. Hint: square boxes mean multiple correct answers must be chosen. No extensions or retakes will be given for computer malfunctions.
Course Structure• Lab syllabus (cont.):
– Grading (cont.)– Tech memo
– Each tech memo is worth 27 points– Tech memos will count 30% towards the lab grade. All four memos will count
towards your final grade, and you must attend all four labs– A paper copy of your tech memo and your lab notebook is due one week from the
date week B of the experiment was performed at 2pm in the AME office, room 365 Fitzpatrick Hall in the measurements lab mail box. (Ask one of the administrative assistants if you can’t find it.) Your memo is considered late if it is not in the correct mailbox. A bag for lab notebooks will be near this box
– Names are optional on your tech memo. Notre Dame student ID number, due date, day, and time experiment was performed are required.
– Graded memos will be returned in the mailboxes by the elevator. They will be left out for two weeks. Students may be emailed when they are available.
Course Structure
– Grading (cont.)– Tech memo
– Out of 27 points, 12 points come from formatting (graded by the grading TA’s), and 15 points come from deliverables (graded by the lab TA).
– Formatting points are straight forward if the directions are followed. – Each grading sheet contains essential deliverables, if you have any questions
about specific deliverables ask the lab TA during office hours.
– A lab scoring sheet must be attached to the back of each lab report. A one point deduction will be applied for failure to do so.
– Error analysis. A one point deduction will be applied for any use of the term “human error” in your tech memo.
Course Structure
• Lab syllabus (cont.):– Grading
– The Grading TA, Lab TA, as well as Professor Ott and Rumbachmust receive an email concerning any grading issues within 1 business day of grades being published. Please include the above people on any emails regarding regrades or technical questions to ensure an accurate and prompt response.
– TA office hours for re-grades– Students must make an appointment via email with the
Head Grading TA WITHIN 1 business day of memos being returned, appointments will be between 8:00am and 5:00pm at MRB
Course Structure
• Lab syllabus (cont.):– Grading (cont.)
– Tech memo– Late memos will receive a deduction of 30% off each working day
that they are late. If you have a university excused absence for submitting a late memo, have Professor Ott initial it and include it with your memo to the grading TA. Also include a title page with course name, course number, lab section, lab day, lab time, memo due date, memo extension date, and Notre Dame ID. All students should participate actively in the experiment. All due dates are posted on the lab course web site. Late memos must be turned in to a Grading TA.
Course Structure
• Academic Dishonesty: Claiming work as your own when it is someone else’s. This includes:– Copying exams/quizzes– Copying text from partner’s report– Copying figures from partner’s report– Allowing your partner to do all the laboratory work
These will not be tolerated!(Refer to Academic Honor Code)
Course Structure
• Lab Web Page:
– Lab Exercises– Lab Calendar– TA Contact Information and Office Hours
Technical Memos
Technical MemosDUE 1 WEEK AFTER LAB EXb
• To AME 21213 mailbox in Fitzpatrick 365 (AME Office)• Technical memos must be submitted in paper format with lab notebooks• Anyone may turn in your technical memo
Late Policy• 30% off each working day reports are late
– Including after 2 PM on due date• Late reports must be turned in to Head Grading TA
– TAs are not responsible for checking AME mailbox if you do not turn the report in on time
– Graded memos are returned in mailboxes by the elevator.
Submission Guidelines• Reports are 7 pages, double spaced, for the body of the
memo. All reports must be type written, including equations. Use sans-serif font. References and footnotes should be single spaced.
• You must include:– NDID – Names are optional.– Lab DAY and TIME
• Scoresheet
7 PagesMaximum
Technical Memos
Writing Guidelines(From Dunn, Ch 12)
Format for SubmissionUse Technical Memo template - Dunn (pg. 447)7 Pages, double-spaced (Appendices are typically not necessary) References and footnotes single spaced 1” MarginsAll reports must be type written, including equations.
NO CODE ATTACHEDContent
Write in 3rd person, past tenseProper grammar is required. Active voice is best. (link) Do not use contractionsNo superfluous tables or figuresDo not re-iterate the experimental procedure Abbreviationsmust be Defined in Text (DIT) Numbers & Units: Dunn 12.2.3
Sample Technical Memo
Date: 05/01/1962To: U.S. D.O.D. Nuclear Research CommitteeFrom: Dr. R. B. Banner Subject: Gamma Ray Research
SummaryThis should be one paragraph that summarizes the important results and states the
significant conclusions. When writing this section, assume that this may be the only partof the technical memo that actually is read.
FindingsThis part covers in more detail what was summarized above. Enough information must be
provided such that an engineer at your level could critically evaluate the approach and methodsand understand how you arrived at the results and conclusions, without your providingany information beyond what is written. Only the most important figures and tables need to beincluded here.
References1. Student, N.O.D., and S.A.M. College. 2010. Measurements through a hard semester. J HeatMass Transfer 11:548-556.2.M.A. Saad. 1992. Compressible Fluid Flow. 2nd ed. New Jersey: Prentice Hall Inc.
AppendicesThese addenda contain supplementary material, such as detailed derivations or
calculations. They are not meant to contain a record of everything that was done on thememo’s subject. Include only what is needed to support material presented in the body of thememo. Do not place the results here and then refer to them from the memo.
Acronyms/abbreviations must be spelled out on first use.Define all variables used in equations. (e.g. is V volume or volts)
Technical Memos: Schematics
Sill TJ & von Recum HA. Biomaterials (2008)
Figure x: Schematic of electrospinning. An electric field is applied to a polymer solution being ejected at a constant rate in the direction of a grounded target. The polymer solution is carried through air by an electric field to become fine fibers that are deposited on a rotating and/or translating mandrel to produce a fibrous mesh.
Schematics…
• Have descriptive captions BELOW the schematicwith brief descriptions of what is being depicted
• A white or transparent background WITHOUT aborder
• Parts should be labelled with what they represent
• Schematics can be made on any design software(creo, powerpoint, and other illustration software)but put some time into the design.
• Do not just take a screen shot of a creo model.
Technical Memos: Figures
Figure. Comparison of theory and experiment.
Figure 1. Comparison of system output predicted from equation (3) and experimental measurement.
Figure numbers, captions, axis labels, and units are required onall figures included in technical memos
Plot continuous functions as continuous lines Plotdiscrete data points as points
Figures should have…• White/clear background• NO Border (ie excel default)• Legends• Axis labels• No Title• Figure captions (below)• Should have large axis labels• Make legends and titles large
MatLab is preferred over Excel. Mathworks file exchange: ExportFig.Figures must be legible. May have two that are side-by-side.
I(am
ps)
t(secs)
Technical Memos: Figures
100
101
10-9
10-8
S t/
3̂x (
S t /
)
Baselinex = 1.75δx = 3.54δx = 5.75δ
2 4 6S t/
8 10 12
0.5
1
1.5
2x 10
-8
3̂x (
St /
)
Baselinex = 1.75δx = 3.54δx = 5.75δ
Linear versus Logarithmic Axes
• Is the physics being studied non-linear?i.e. exponents, logarithms, etc.
• Does the range of one axis span several orders of magnitude?
• Does the figure display the results well?• Did you report print correctly (is it printed in color)?
Technical Memos: Tables & Equations
Tables should have…• Table captions ABOVE the table• Both table and figure captions
should be descriptive • Units should be given if applicable• Tables and figures should contribute
to understanding your results
Equations should have…• An identifying number to the right
that is referenced in text (ie Eq. 2)• Variables should be defined in text• Include line fit equations in text and
describe variables.• Make sure equations are separated
from the body of Text by empty lines on the top and bottom
Correct -> 𝑉𝑉 = 1500(𝛺𝛺) × 𝐼𝐼 (Eq.2)
Where Ohm’s law, Eq. 2, is a linear relationship between resistance (Ω), voltage (V), and current (I)
Incorrect -> y=1500*x
Units Appropriate variables
Equation labels
Description of equation
Scientific Notebooks
This Notebook is the official one, and is the only one you should use.
Notebook Grading
Requirements• Lab work only• Write in pen only• Signature, date, and title• Schematic and short description of
experiment• Transcribe essential tables and information
from lab handout. Cutting and pasting tables into your notebook is fine
Grading• Scored out of 10 • Failure to turn in your notebook on time is an
automatic 0
This power point and all of the information required for you to get an A in this course can be found on
professor Ott’s lab website