MEE 390 Fall 2001: Homework (HW) & Project Assignments:
Class Picture *  Class email list * Syllabus *  ©2001 M. Kostic * 
Any verbal change/info announced in class supercedes any printed or Web posted Info!

BACK to KOSTIC Homepage *  350* 
Let's get acquainted: First Things First!*[PDF] ***
Read 1st * Lab Safety Rules***Some Suggestions for Problem Solving
Project Instructions* Handouts Etc.** Class/HW/Lab/Exam Policies

HW#1a HW#1b HW#2HW#3 HW#4 HW#5 HW#6 HW#7 HW#8 
HW#9 HW#10 HW#11 HW#12 HW#13 HW#14 HW#15 HW#16 

NOTES: Missing Bartosz Sobol's email address

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Homework No. 14: Assigned in week of  Mo, 11/26/01 (Due as per rules if not specified otherwise):

Project review-appointment feedback-email assignments:

Project review appointment feedback: Your last name(s) -Your project title – MEE 390 

Please replace in the above line your last name(s) and your project title and then copy it to the email “Subject line” 

You should then write comments from our project review appointment: items I mentioned, questions you asked and any other feedback from our project review that you’ll use to improve the project report. Be very specific and concise and send the feedback email by midnight on Tuesday, 11/26/01. Thank you.

NOTE: If more than one student worked on the same project (approved team project), still each member must submit individual project report for individual grading (they may get the same or different grades on the same project). The individual project report of a team may be exactly the same for all team members or each member may choose to submit his/her own different Abstract and Conclusion/Recommendation parts (your choice and you have to inform me), or I may choose to have individual exit interviews and grade each student based on common team work and individual interview. If the project report is exactly the same for all team members, only one electronic submission has to be made but still individual (multiple) printed copies must be submitted. The same policy applies to the Poster and/or Presentation submission.

Study thoroughly Section 12.1 to 12.10, p. 466-504 in our Textbook and redo Example 12.1 & 3. Some of the instruments in Sec. 12.2, Dimensional Measurements: Metrology (not Meteorology) were shown and discussed in our First Lab, Demonstration of different bench-top measuring instruments, like Vernier calipers, micrometers, and dial indicators. Pay special attention to Sec. 12.3, Displacement Measurements, in particular the Linear Variable Differential Transformer (LVDT). Mass measurements (balances) are in Sec. 12.4. The accelerometers, used as seismic, shock and vibration transducers, are covered in Sec. 12.5, while velocity measurements is accomplished either through displacement rate measurements in time, or through integration of acceleration measurement in time, see Sec. 12.6. The stroboscope, a " blinking" light instrument for angular velocity measurements is described in the same section, and used in our Measurements of motor-flywheel characteristics lab (for bonus credit you may submit the challenge problem to derive strobe formula as specified in the lab handout). Force measurements and the load cells are covered in Sec. 12.7, while the torque (see again our Lab) and mechanical power measurements are covered in the last part of the Chapter.

Sample of MEE 390 Final Exam [PDF]

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Homework No. 13: Assigned in week of  Mo, 11/19/01 (Due as per rules if not specified otherwise):

  1. Study thoroughly Section 11.1 to 11.5, p. 429-453 in our Textbook (See also Lecture Notes) (PDF) and redo Example 11.2, 11.4. & 11.6. Remember, we performed earlier a lab Calibration of and Measurement with Strain Gages. Please review and reflect on it while studying this topic.
  2. Optional reading: Section 11.6, p. 454-459 in our Textbook.
  3. Do Problems 11.6 and 11.14. (Problems 11.7, 11.10 & 11.26(old 19) are/will be worked out in class to help you with homework).
  4. ADDITIONAL ASSIGNMENT related to your individual project: For your own benefit, to share your project experiences and get a more objective (peer) review of your project report, all MEE 390 students have to pair in a two-partners groups for review of each other's individual project. Every student has to read, understand, and critically review his/her partner's project report and points to mistakes or ambiguities if any, to be corrected (if agreed by your partner, but not necessarily). A written, one-page review report signed by you, must state your partner's project strong and weak points (always the case; of course, according to your judgment) and must be attached with your final project report (not with the project report you reviewed). Also you have to email the review to me. Quality and thoughtfulness of your partner's project review will be graded as part of your project grade.

REMINDER:
Full version of your individual project report is due on We, 11/21/01 and Final project report and poster (or PowerPoint presentation instead of poster) are due on We, 11/28/01 Mo, 12/3/01. See Additional guidelines for MEE 390 Individual Projects and the Partial checklist for the final project report.

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    Homework No. 12: Assigned in week of  Mo, 11/12/01 (Due as per rules if not specified otherwise):

    1. Study thoroughly Chapter 10, Section 10.1 to 10.5, p. 389-411 in our Textbook (See also Lecture Notes) (PDF) and redo Example 10.2
    2. Optional reading: Section 10.6 to 10.8, p. 412-424 in our Textbook.
    3. Do Problems 10.9 and 10.19 (Problems 10.7, 10.10 and 10.21 are/will be worked out in class to help you with homework).
    4. (Due Mo,11/19/01) Redo Problem 10.21 worked in class on 11/14/01.

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    Homework No. 11: Assigned in week of  Mo, 11/5/01 (Due as per rules if not specified otherwise):

    1. Study Chapter 9, Section 9.1 to 9.9, p. 345-384 in our Textbook (See also Lecture Notes) (PDF) and redo Example 9.2, 9.4 and 9.6.
    2. Do Problems 9.15, and 9.31 (see solutions). Problems 9.13 (MathCAD 9.13), 9.20, and 9.26 are/will be worked out in class to help you with homework. 
    3. (due Mo, 11/12/01) Redo solved Problem 9.13 for the value of measured pressure of 10 Pa.
    4. Individual Project Progress report (new work done in a week) is due on We, 11/14/01, a Full version of your individual project report is due on We, 11/21/01 and Final version on We, 11/28/01. See Additional guidelines for MEE 390 Individual Projects and the Partial checklist for the final project report.

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    Homework No. 10: Assigned in week of  Mo, 10/27/01 (Due as per rules if not specified otherwise):

    1) Review Problems 8.29, 8.30 and 31 (will be worked out in class to help you with better understanding of the chapter).

    2) Work on your individual project and submit first draft of the project report according to the required format and including all progress and work done by the due date on We, 11/7/01. It is very important that you work regularly on your project and make progress, since the final deadline is one week before our last class meeting (four more weeks only).

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    Homework No. 9: Assigned in week of  Mo, 10/22/01 (Due as per rules if not specified otherwise):

    4) Do Problems 8.10, and 8.28 (Problems 8.29, 8.30 and 31 are worked out in class to help you with homework).

    3) (Due Fr) Study thoroughly Chapter 8, p.283-337 in our Textbook (See also Lecture Notes) (PDF) and redo Examples 4, 8, and 12.

    2) Study Chapter 7, p.235-278 in our Textbook (See also Lecture Notes) and be ready for discussion of the subject matter. Pay special attention on Section 7.2: Sampling Concept (also aliasing) and review related material on the Web: http://www.kostic.niu.edu/aliasing.htm , and last three sections, 7.7: Data Acquisition (DAQ) System Components, 7.8: Analog Input-Output Communications, and 7.9:Digital Input-Output Communications. Review the corresponding handouts on the Web: http://www.kostic.niu.edu/DAQ-LabVIEW.html 

    1)  Assignment for next class meeting (due We): (a) Redo Example 7.1.  (b)  Perform the online experiments as explained and  set up at http://www.kostic.niu.edu/aliasing.htm and print the most characteristic case of your choice for grading. You could simulate stroboscope experiments done in our lab with this online experiment (see note below). (c) Verify Example 7.1 results with the online experiment, print and submit it for grading.

    NOTE 1: The concept of sampling is very well demonstrated by measuring angular speed of a rotating wheel in a dark room with a stroboscope (remember our lab!). A reflective mark (white line) on a rotating wheel, for example, is sampled (seen) when the strobe light fires. If the strobe firing (or blinking) frequency is the same as the wheel's rotational frequency, the reflective wheel's mark will be seen at exactly the same position, and it will appear that the wheel is stationary, does not rotate at all. The same will appear if the wheel rotates at any integer multiple of the strobe light frequency, since the reflective mark will be caught at the same position after that integer multiple of revolutions. These cases correspond to the zero aliasing frequency (i.e. they correspond to the left end of the "folding" diagram in our Textbook). If the wheel rotates somewhat faster or slower, it will appear that the wheel rotates very slowly in forward or backward direction, respectively, which is clearly indicative on the folding diagram. To see the "full" wheel's rotation, the sampling or strobe frequency has to be much bigger than the wheel's rotational frequency. Increasing the strobe frequency will fill up the dark room with continuous-like light and the real signal (wheel's rotation) will be "fully visible." A signal sampling is like probing the position of the rotating wheel in the dark with a strobe's intermittent light. If the "sampling" strobe frequency is slow, we may miss a lot of wheel's rotation "in the dark," and may wrongly conclude that the wheel rotates much slower or even in the wrong direction, due to aliasing.

    Note that the sampling phenomena depend on the relative sampling and signal frequency ratio (fs/f=mfs, called for short here, the frequency ratio), so that the increase of the signal (or wheel) frequency has the same effect as the corresponding decrease of sampling (or strobe) frequency, or vice versa. Usually, for analysis of the phenomena it is more convenient to vary the strobe frequency than the wheel's rotation. However, in our virtual instrument either way is equally convenient. The paper, http://www.kostic.niu.edu/NIWEEK99.htm , gives a brief and "static" overview of the developed virtual instrument, which provide "live," what-if interactive simulation, essential for full understanding and appreciation of the art of signal sampling and aliasing.

    NOTE 2: The related lab, LabVIEW and Data Acquisition (DAQ), is postponed until the hardware system upgrade is completed, hopefully in couple of weeks.

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    Homework No. 8: Assigned in week of  Mo, 10/15/01 (Due as per rules if not specified otherwise):

    1) Study the following laboratory experiment handouts and be ready for a quiz before we start experiments this Friday:

    2) Study Chapter 7, p.235-278 in our Textbook (See also Lecture Notes) and be ready for discussion of the subject matter. 

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    Homework No. 7: Assigned in week of  Mo, 10/08/01 (Due as per rules if not specified otherwise):

    1) Email to me your mid-semester feed-back about the lectures, labs, homework and midterm experiences so far (skip items that do not apply to our class if any). Your constructive comments and criticism will be very valuable for future improvements. Please comment the following:
      (a) Material/topics that you found interesting or valuable:
      (b) Material/topics that you found to have little interest or value:
      (c) Your comments about Internet and multimedia usage and suggestions for course delivery improvement:
      (d) Your comments about lectures, labs, assignments, instructor and TA meetings, and suggestions for course delivery improvement:
      (e) Additional comments:

    As explained in 10/8/01 class, you are assigned a homework problem for the next class meeting on 10/10/01 to redo Problem 5.30 if modified to include correction for the room temperature TRoom=75 F ±1 F uncertainty at 95 % probability. In other words, you will assume that data in original problem 5.30 are obtained in our lab with given room temperature and its uncertainty (those are additional data to be used with original data of problem 5.30) and calculate curve fit and uncertainty analysis including the room temperature correction as explained in lab handout and verbally in lab and classroom. The results will be different from original results without regard to the room temperature.

    NOTE A): "Electrical devices and signal processing" topic is described in Chapter 6 (p. 192-230) of our Textbook. It is a summary of analog electrical devices for the current, voltage, and resistance measurements, as well as analog signal conditioning (amplifiers, filters, etc.). Also, the loading errors, impedance matching, grounding, shielding and wiring are described. Since you have covered these topics in more details in ELE 210, Engineering Circuit Analysis I, and  ELE 215, Electronic Instrumentation courses, we are not covering this chapter formally, but will use its content as needed in lab experiments and Data Acquisition topic. Therefore, review this chapter on your own and as needed.

    2) Study the following laboratory experiment handouts and be ready for a quiz before we start experiments on Friday:

    3) For all lab reports to be submitted from now on (after Chapter 5 lectures) you have to do related uncertainty analysis which will be graded. 

    NOTE B):  The first draft of the individual project progress report will be due one week after proposal approval (on Mo, 10/15/01). Click here for more instructions.

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    Homework No. 6: Assigned in week of  Mo, 10/01/01 (Due as per rules if not specified otherwise):

    1) Study thoroughly Chapter 5, p.149-166-183 (Ch.5 Notes also PDF) and redo Examples 1 and 3.
    2) Do Problems 5.12, 5.14 and 5.24, 5.36 (due on We, 10/10/01). The problems 5.30 (    PDF), and 5.44 are/will be done for you as a HW examples.

    3) Special Assignment: As explained in class, research and prepare one-page proposal for Individual Project of your choice and have it approved by me ASAP but before 4:30 PM on Mo, 10/08/01. The first draft of the project report will be due one week after (on Mo, 10/15/01). Click here for more instructions./

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    Homework No. 5: Assigned in week of  Mo, 09/24/01 (Due as per rules if not specified otherwise):

    Our first Midterm is on Wednesday, 9/26/01. Do our midterm problems at home and submit them on Friday, 9/28/01 or Monday 10/01/01.

    Study the first two laboratory experiment handouts and be ready for a quiz before we start experiments next week.

    1.1) Lab Safety Rules and Demonstration of different bench-top measuring instruments.Click Q & A for Experimental Tips, Questions and Answers.

    1.2) You will be shown different general-type and bench-top instruments, and our lab equipment. Your assignment is to list 10(ten) different instruments which you saw in our Lab (EB 254). Give specific and detail names including make and model if available. Give brief description and specifications of one listed instrument of your choice (half page length and sketch/photo recommended). For most instruments you will find description in our Textbook or you could use other references from library, Internet, manufacturers' catalogs, anything you want. If specification is not available, use your best judgment to estimate it, like instrument range, precision, accuracy, etc.

    After you sign the form of "Understanding and Agreeing with the Lab Safety Rules" you may go back to the Lab and scout/explore for the instruments for your assignment, but remember to always follow our Safety Rules.

    NOTE: Your Lab assignment and Lab report are due on the day before the demonstration of the next Lab or in a week time period. It is the best for you if you do your lab experiments right after the demonstration while TA or Instructor is still in the Lab.

    2) Print and study  the handout for our next lab: Oscilloscope demonstration, and bring it to the lab. Study related Sec.6.3-Oscilloscope, Text p.197, and be ready to discuss related matters with our Lab Teaching Assistant or me.

    Lab Safety Rules and Our First Lab:

    We are starting with our labs as announced in class. Attendance is mandatory for all students, and without full lab attendance your grade will be incomplete, which may result in unsatisfactory final grade and repetition of the course.

    As discussed in the class, during our work in the laboratories, there is a risk of injury and/or damage to the equipment. That is why you are requested to be careful and responsible and to use a good judgments and common sense, as well as to follow all written and verbally given safety rules.

    The Lab Safety Rules are posted on our class Web site [ http://www.kostic.niu.edu/LabSafetyRules.html ]. You have to print, read and understand them before doing any work in the lab. You have to send me a confirmation e-mail that "you have read, understood and will obey all Lab safety rules". You may be asked to sign the same statement before starting any work in our Labs. Please, review the Lab Safety Rules and discuss your concerns if any with me or TA before signing the above statement.

    Have a safe, productive and satisfying work in our Labs!

    NOTE 1 ABOUT THE LAB EXPERIMENT: You must finish experiment in the lab at least one day before the next scheduled experiment (usually within a week, afterwards the lab setup may be disassembled in order to prepare new experiment's setup).  Your previous Lab assignment and Lab report are due on the day, but before the demonstration of the next Lab, or in a week time period. It is the best for you if you do your lab experiments right after the demonstration while TA is still in the Lab.

    NOTE 2 ABOUT THE LAB REPORT: As explained in class and lab, you have to perform every demonstrated experiment individually as a homework assignment, calculate results (show work for each characteristic sample with units) and submit the corresponding lab report, as per related handout and posted and verbal instructions by TA and Instructor. There is no formal format for the lab reports and esthetics is not important, but neatness and substance are. In addition to required calculation and presentation of results in tabular and graphical form, you should be very specific and write as little as necessary, like key words and titles and short paragraphs for peculiar comments and conclusions. Avoid unnecessary general or repetitive descriptions from the handouts and references, but make specific reference to appropriate source instead.  

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    Homework No. 4: Assigned in week of  Mo, 09/17/01 (Due as per rules if not specified otherwise):

    1) Study thoroughly Chapter 4, p.109-143 and do Examples 4.1 and 4.3 in our Textbook (See also Lecture Notes) (also in PDF). Do Problems 4.4, 4.14, 4.24, 4.29. MathCAD files are provided for you to conveniently calculate Gaussian and Student-t distributions, and Polynomial and Arbitrary cure fit using Least-Square-Method (LSM).

    2) Toss a coin 20 times (i.e. about the total number of class experiments) and record the outcomes, 2 for head or 0 for tail. Calculate the mean (average) value, sample standard deviation (called standard error in some books) and the standard deviation of the mean. NOTE: The TA/instructor will calculate new average (average of the averages) and standard deviation of your average values and compare it with the standard deviation of the mean.

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    Homework No. 3: Assigned in week of  Mo, 09/10/01 (Due as per rules if not specified otherwise):

    Study thoroughly Chapter 3, p.70-96 (p.96-104 informational) in our Textbook (See also Lecture Notes) (also in PDF) and do Problems 3.10, 3.20, 3.30. Problem 3.23 is solved for you using MathCAD ( or PDF format) as a demonstration to help you with the Homework.

    NOTE: Sean Troutt website link to useful engineering and physics site http://230nsc1.phy-astr.gsu.edu/hbase/hframe.html

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    Homework No. 2:         Assigned in week of  Mo, 09/03/01 (Due as per rules if not specified otherwise):

    1) Study thoroughly Chapter 2, p.35-57 in depth (and p.58-64 informational) in our Textbook (See also Lecture Notes) (also PDF format) and do Problems 2.5, 2.7, and 2.17. The problems 2.4, 2.6, and 2.16 are/will be done for you as a HW examples.

    2) For next class redo Examples 2.2 and 2,4 (see Note about Reading and Example Homework).
    Example 2.3 was worked out in class using MathCAD.

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    Homework No. 1b:         Assigned in week of  Mo, 08/27/01 (Due as per rules if not specified otherwise):

    1)  Lab Safety Rules and Our First Lab:

    We are starting with our labs as announced in class. Attendance is mandatory for all students, and without full lab attendance your grade will be incomplete, which may result in unsatisfactory final grade and repetition of the course.

    As discussed in the class, during our work in the laboratories, there is a risk of injury and/or damage to the equipment. That is why you are requested to be careful and responsible and to use a good judgments and common sense, as well as to follow all written and verbally given safety rules.

    The Lab Safety Rules are posted on our class Web site [ http://www.kostic.niu.edu/LabSafetyRules.html ]. You have to print, read and understand them before doing any work in the lab. You have to send me a confirmation e-mail that "you have read, understood and will obey all Lab safety rules". You may be asked to sign the same statement before starting any work in our Labs. Please, review the Lab Safety Rules and discuss your concerns if any with me or TA before signing the above statement.

    Have a safe, productive and satisfying work in our Labs!

    Our First Lab is tentatively scheduled for Fr, 09/07/01 and your Lab Assignment is due on Fr, 09/14/01.

    NOTE 1 ABOUT THE LAB EXPERIMENT: You must finish experiment in the lab at least one day before the next scheduled experiment (usually within a week, afterwards the lab setup may be disassembled in order to prepare new experiment's setup).  Your previous Lab assignment and Lab report are due on the day, but before the demonstration of the next Lab, or in a week time period. It is the best for you if you do your lab experiments right after the demonstration while TA is still in the Lab.

    NOTE 2 ABOUT THE LAB REPORT: As explained in class and lab, you have to perform every demonstrated experiment individually as a homework assignment, calculate results (show work for each characteristic sample with units) and submit the corresponding lab report, as per related handout and posted and verbal instructions by TA and Instructor. There is no formal format for the lab reports and esthetics is not important, but neatness and substance are. In addition to required calculation and presentation of results in tabular and graphical form, you should be very specific and write as little as necessary, like key words and titles and short paragraphs for peculiar comments and conclusions. Avoid unnecessary general or repetitive descriptions from the handouts and references, but make specific reference to appropriate source instead.  

    NOTE 3 ABOUT THE INDIVIDUAL EXPERIMENTAL PROJECT: As discussed in class start thinking about individual experimental project ASAP (it will be officially assigned around the middle of the semester, see Project Proposal Assignment etc.). There will be requirements for professional (technical/formal) report, see Instructions.

    2) Study thoroughly Chapter 1, p.1-29 in our Textbook (See also Lecture Notes) (also PDF format and Animated Part) and do Problems: 1.8; 1.18; 1.28; 1.38. (Quiz#1)

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    Homework No. 1a:         Assigned in week of Mo, 08/27/01 (Due as per rules if not specified otherwise):

    1. Print our class Syllabus, posted on my Web site, http://www.kostic.niu.edu, sign and bring it for our next class meeting. Read the syllabus and its relevant links very carefully, and clarify with me all your concerns and doubts during our next class meeting.
    2. Revew Let's get acquainted-First Things First!*[PDF format is convenient for printing].
    3. Send me an email (kostic@ceet.niu.edu) with the subject line (exactly but without quotes, you may cut-and-paste): " MEE 390 Fall 2001 Student E-mail Contact ," and a 100-150 word free-assay by introducing yourself and expressing your expectations and concerns about the subject after reviewing the syllabus. I need this email immediately to get your email address and make up email group list for our class, so that I could send you future class information via email. [check]

    Textbook:
    R.S. Figliola, and D.E. Beasley, Theory and Design for Mechanical Measurements - 3rd Edition, Wiley, 2000

    References (newer editions may exist for some):
    R.H. Bishop, Learning with LabVIEW, Addison Wesley, 1999
    A.J. Wheeler and A.R. Ganji, Introduction to Engineering Experimenntation, Prentice Hall, 1996
    E.O. Doebelin, Measurement Systems - Application and Design, 4th Edition, McGraw-Hill, 1990
    J.P. Holman, Experimental Methods for Engineers, 5th Edition, McGraw­Hill, 1984.
    J. W. Dally, W. F. Riley, and K. G. McConnell, Instrumentation for Engineering Measurements, John Wiley & Sons, 1984.

    Additional references will be given during the lectures along with handouts.

     

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