assembled instrumented transformer is shown in Figure 1. We selected a case with atransparent cover so that the students could clearly see the transformer and associated circuitrybut be protected from lethal voltages. Figure 1 Instrumented Transformer OverviewThe students can read the transformer part number, and part of an assignment is to look up thespecifications for it and include the relevant parameters in the modeling and simulation of theexperiments.The transformer outputs are shown in Figure 2. The transformer is configured in a center-tappedmode, and each side is brought out as well as the center tap. Additionally, there is a powerindicator. Power IndicatorLow Voltage A.C. Outputs Center Tap
engineering (CHE) course, CHE150, Green Energy.Students noted that other departments, specifically Mechanical and Biomedical engineering, hadfreshman courses incorporating such experiences, as do many other universities.1-5 Their requestreiterated comments heard annually from juniors taking the spring semester CHE246 unitoperations laboratory during which machine shop training is provided in preparation for thesenior laboratory course. The senior lab course is typically popular with students, with extensivepositive end-of-college “Exit Survey” feedback, however, students comment that they wishedthey had had the opportunity to perform hands-on projects earlier, and that they had gotten intothe campus machine shop earlier than second semester of their
restricted to the number of accesses purchased by theinstitution. Once downloaded, students need not be concerned of losing data due to bad/slowinternet connections. For assessment, students are required to complete a short quiz, withquestions similar to those asked in the face-to-face experiment, and a brief lab report.The Development and Operation of the SimulatorThe simulator team chose LabVIEW for the development tool. LabVIEW has a number ofstandard controls and indicators simulating meters and switches. The programs created customcontrols based on these standard devices that more closely resemble those found on the physicallab equipment. The custom controls became the basis for developing simulated machines andinstruments. Figure 1 shows the
the other decided to use MATLAB. Student users of the simulator software were surveyed.In the second year, a third group of students used JavaScript to create their simulator. Theyincorporated the feedbacks and analyses of the prior surveys to guide their development process.Example of an ExperimentThe EET simulator was specifically designed as a teaching and learning tool. Students can use itto visually explore the underlying mathematics and signal processing in analog and digitalmodulation schemes. Instructors can use it as a tool to translate abstract mathematical functionsinto visually represented signal waveform. The following is an example of a short in-classexperiment that can be done.Step 1: Using the viewer control panel insert the
momentumconservation and ideal gas thermodynamics theory. Among other metrics, the performance ofeach student team was assessed based on (1) the ability of the custom trigger mechanism to firethe cannon over a range of initial reservoir pressures, (2) a thoughtful comparison amongexperimentally-measured and model-predicted muzzle velocities, and (3) documentation of theresults of cannon design, realization, and operation.This paper discusses the implementation and relevant outcomes of the project. Based on studentfeedback, the project was well-received and anchored the often abstract thermal-fluid sciencesconcepts taught. The project also highlighted the challenges of applying theoretical equations toreal-world problems and the vital need for experiments to
complemented by a workshop hosted by GeneralElectric (GE) at Qatar Science and Technology Park, where students received a hands-on trainingsession on regular maintenance work carried out on aircraft engines.IntroductionThe jet engine is a marvelous piece of engineering that encompasses many fundamentalengineering principles. Model jet engines have been used in laboratory setting to enhance students’learning experience (1). The primary objective of this project was to help the students understandthe challenges and requirements to design an experiment. The students were asked to work on twodifferent aspects of the jet engine: Its performance characterization and its vibration analysis. Asthe semester progressed, they were able to gain in-depth knowledge
objectives and an assignment for participants. There were also 5 sessionsduring Fall 2013. Breakout groups within each session promoted interactions among subsets ofthe participants; these were critical for encouraging broad participation, with each breakoutgroup reporting back to the full VCP afterward. Pre-planned topics included (1) Introduction tothe Circuits VCP, (2) Overview of Research-based Instructional Approaches, (3) LearningObjectives and Bloom’s Taxonomy, (4) Student Motivation, (5) Teams, and (6) & (7) Makingthe Classroom More Interactive. The topics for sessions (8) and (9) were developed by our VCPcommunity during preceding weeks: (8) Simulation and Hands-On Learning, Assessing Impact;(9) Great Ideas that Flopped. In addition to
computing, problem-solving, and logicalthinking skills.As established in the literature, hands-on engineering projects have a positive impact on bothstudent engagement and student learning.1-2 Several programs have introduced hands-on projectsfor first and second year engineering students. At the Colorado School of Mines, mechanicalengineering sophomores (about 150 split into three sections), have two group projects interfacingsoftware and hardware using the SparkFun RedBoards and MATLAB®.3 Northern EssexCommunity College has a first year course offered to a small group of engineering students.4Several interesting software/hardware experiments such as control of a stepper motor areperformed in a well-equipped lab with oscilloscopes, spectrometers
studentunderstanding. Overall, the simulation and experimental package provide an excellent foundationfor understanding reaction rates and chemical processes with first order dynamics. Examples willbe given of laboratory exercises that can be performed with the setup. Additionally, there is adiscussion of process feedback control opportunities that could be available for advancedundergraduate courses.1. IntroductionIn a standard chemical engineering education, a gap exists between the differential equationsgoverning chemical reaction dynamics learned in class and how chemical plants operate inindustry. Improved student understanding of the time-domain evolution of chemical reactionscan help fill this gap. Thus, there is a need for a safe and affordable
anybreadboard and electronic workstation. Most of them had very little experience in operatingmeasurement instruments such as oscilloscopes, bench top multimeters, and LCR meters. Rarelyhad they exposed to the iterative cycle of designing, simulating, building and testing of electricalcircuits. A new set of laboratory experiments were developed for our electrical engineering majorsto provide them engineering education on these topics. These experiments also prepared studentsfor the subsequent laboratory courses such as microcontroller applications and electronics. Thespecific learning objectives of this laboratory course are as follows: 1. To identify basic electronic parts, to verify circuit theorems, and to acquire basic soldering skills. 2
and hands-on traininghas been found as an effective tool in helping to develop the necessary skills. The Core Measurements course [1], which is offered in the spring semester of thejunior year, focuses on the principle subjects of mechanical engineering such as fluidmechanics, heat transfer, thermodynamics and combustion, mechanics and materials, andautomation and control. The prerequisite for the course is the Basic measurements course[1], which focuses on basic measurement and instrumentation techniques and is taught insophomore year. Core measurements is a two–credit course, having four contact hoursper week. Students can expect to do eight standardized experiments per semester, withone to two experiments in each of the four specialty
experiments that utilize Hodgkin-Huxley neuron models are carriedout by students in the BMED 440 course as well as an upper division physiological simulationand modeling course (BMED 430).Extensive use of the SPICE sub-circuit definition capabilities are made to develop virtualexperiments such as is illustrated in Figure 1., involving the injection of a stimulus current pulsetrain into an electrically small biological neuron such as a leech Retzius Cell4. Page 12.316.3 Micropipette ISTIM(t) Retzius Cell Figure 1. Simple SPICE equivalent
science laboratory and presentsresults of student surveys and instructors interviews regarding the effectiveness of this system.System DescriptionThe real-time data collection system is comprised of a desktop computer running LABView andtwenty-one Tablet PC connected to a wireless network. The Tablet PCs run custom softwarewhich communicates with the desktop computer and can display real-time test data in variousformats. Although the data acquisition is portable and can be used on different experiments, it iscurrently connected to a MTS axial test machine. Figure 1 shows a schematic of the system. Adetailed description of each component follows. Figure 1. Schematic of Wireless Data Acquisition System
: 1. Diodes and Rectifiers 2. Semiconductor Physics 3. Two-Ports, Load Lines and Biasing 4. Piecewise-Linear Models 5. Q-Point Stabilization, Thermal and Environmental Considerations 6. Emitter Follower, Common Base and Common Emitter, Coupling and Loading 7. Power Amplifier, Transformer Coupling 8. Operational Amplifiers 9. N and P channel depletion and enhancement MOSFETTo provide the students with an enhanced hands-on experience of the electronic componentsstudied in their lectures, a set of 12 learning oriented, pre-defined labs are incorporated in a twohour lab course. These labs cover the following topics
academicworld.This paper looks at the opportunities and the challenges that are presented inthe“flattened” laboratory world. The purpose of this paper is not to be an exhaustivereview of all aspects of the flattened laboratory world; it is to present some commonideas in a different context to provoke discussion and development to aid engineeringlaboratory education.The “Flatteners” 1. Personal computer’s ability to communicate over phone lines. In the period1969 – 1989, Atari, Commodore and Macintosh users with a modem could connect to theforerunners of AOL and Compuserve1. In 1990, with the introduction of Windows 3.0 Page 12.1444.2for IBM-PCs or clones, the
opportunities for students to develop and re-conceptualise theirgrowing knowledge. Such principles are articulated in instruments suggesting how we mightthink about learning, see for example Kolb’s experiential learning cycle(1), as well as insuggested principles for good practice in undergraduate education(2).Learning is also enhanced when it is a situated activity such that it presents an opportunity forthe students to see, explore, and gain first-hand experiences. Far too often, however, didacticteaching transmits to the learners a second-hand view of knowledge. A view that is held bythe teachers or conventional wisdom. Whilst the transmission of knowledge may be highlyefficient the views are often too abstract and have limited relevance to the
, been an invited lecturer, and served as an ASME/IGTI reviewer and session chair. She has received the NASA Wings of Excellence Award, the NASA Best Publication Award, the NASA Medal of Honor for scientific excellence, and 2 ASME/IGTI Best Paper Awards (1 from the Turbomachinery Committee and 1 from the Controls and Diagnostics Committee). Michelle holds a BS EE and BS BME from Carnegie-Mellon University, an MSEE from University of Texas at Arlington, and a PhD EE from the University of Akron in Ohio. Page 13.1008.2© American Society for Engineering Education, 2008 Progressive Research On A
as a lecture demonstration or lab activity helps students betterunderstand basic process chemistry and physical properties of fluids, gain experience withprocess design issues, and gain a better understanding of this biofuel.IntroductionBiodiesel is defined as "a fuel comprised of mono-alkyl esters of long chain fatty acids derivedfrom vegetable oils or animal fats, designated B100" 1. The most common biodiesel molecule isa fatty acid methyl ester (FAME) derived from the transesterification of triglycerides in soybeanoil or canola (rapeseed) oil. Biodiesel is formed by chemically splitting a triglyceride molecule in Page 13.252.2the presence
thesame time, the flexibility of software simulations enables the expansion of the scope of theexperiments to parameter ranges and configurations that would not be suitable for the actual windtunnel. For example, the virtual experiment allows the students to explore the lift and drag forcesacting on different realistic airfoil types oriented at varying angles of attack.1. IntroductionTraditional hands-on laboratories are educationally effective for illustrating complex theoreticalconcepts taught in lectures. While they add an active learning component to courses, they alsoimpose significant space, time and personnel costs on the educational institutions. These costs canbe significantly reduced by using Web-based remote or virtual laboratories
well as to analyze and interpret data.”ABET EC2000 presented a paradigm shift in dealing with engineering laboratories. Studentshave to design their own experiments instead of only conducting recipe-type experiments anddealing with collected data. In doing this, the students can achieve several outcomes and beprepared for the profession.For an engineering program seeking ABET accreditation, several questions related toundergraduate laboratories need to be answered: 1. Why is it important for professional engineers to be able to design and conduct experiments? To which extent can the undergraduate lab experience simulate the professional engineering practice? 2. What are the fundamental objectives that could be met through the
engineering disciplines. There is a bit of nostalgia in the paper, but most important there is the identification of key skills that once were the prerogative of the surveying lab and suggestions for how these skills might be brought into the CE curriculum again and perhaps serve a useful role in other engineering disciplines as well. A few of the topics that will be explored in this paper include: (1) the relationship between the precision of instruments used in measurement and the nature of the methods used to adjust values that are the result of random errors; (2) how methods have changed over time due to technological advances in equipment; and (3) how techniques used for long distance surveys such as triangulation, trilateration
for these three semesters. Spring 2006was the first semester that this tool was used. The raw data of these evaluations are shown in theAppendix. A summary of the data for these three semesters is shown in Table 1. For comparisonpurposes, the evaluations of the same course taught in summer 2003, spring 2004, and fall 2004semesters before the adaptation of the Freescale kits are also shown in Table 1. The tools used inthese three semesters were Axiom’s CME-12BC evaluation boards, DBUG12 Monitor, AXIDE,and ImageCraft C compiler. These tools were used as the means for the facilitation of learningfor the course. Much of the materials delivered to the students in the lectures were done throughthese tools. Further the students used them extensively
biological experimentation. Page 13.254.3Table I: Schedule of experiments for Biotechnology and Bioprocessing Laboratory Week Lecture Laboratory 1 Introduction, microplate reader spectrophotometer software demo 2 Sterile technique. Bacterial Experiment 1 and mammalian cell Pouring/streaking plates morphology Cell mass determination Microscopy Wet and dry mounts Trypan
AC 2007-3100: INNOVATIVE USE OF A RESEARCH REACTOR FORINTERDISCIPLINARY ENGINEERING EDUCATIONJohn White, University of Massachusetts-LowellLeo Bobek, University of Massachusetts- Lowell Page 12.900.1© American Society for Engineering Education, 2007 Innovative Use of a Research Reactor for Interdisciplinary Engineering EducationIntroductionOver the last few years, the research reactor facility at the University of Massachusetts-Lowell(UMLRR) has developed capability to perform live experiments and deliver archived reactoroperations data via a web-based interface to remote users.1-3 Access to this capability isavailable through the nuclear101
and uniqueness of this program is a senior-level, two-semester capstone manufacturing project course that provides students with theexperience of integrating business and engineering skills toward distributed productrealization. The term “distributed” is used to emphasize that the student team is expectedto use facilities that are distributed at manufacturing laboratories on both campuses andthe facilities of outside vendors and suppliers. This project course also provides studentswith the experience of integrating the technical knowledge they have learned from othercourses. The objectives of this program and learning outcomes include 1) Ability forstudents to design and conduct experiments, as well as to analyze and interpret data; 2)Ability
classsize. The student group projects are listed below and are shown in figures that then follow.Automatic Cabling Design project assignment is shown in figure 1-A. The actual student groupwork is shown in figure 1-B. This project determines the actual cable size that will meet thegiven parameters. Page 13.310.5DC Motor System Load project assignment is shown in figure 2-A. The actual student groupwork is shown in figure 2-B. This project determines which motors are required to “run” to meetthe given load.Automatic Power Factor Correction project assignment is shown in figure 3-A. The actualstudent group work is shown in figure 3-B. This project
the semester.The Milestone based assessment approach was first developed in the unit MechatronicProject 332, and this paper describes its use in that unit. This unit is a semester long projectin which students design and build a toy car to navigate autonomously around a track (Figure1). The vehicle is controlled through differential steering (Figure 2), and powered throughtransistor amplifiers which are developed by the students (Figure 3): Figure 1: The Circular Track Figure 2: Car layouts showing differential steering Page 13.895.3 Figure 3: Transistor
background concerning electrical motors. A simple first-orderelectromechanical model of a motor4, 9 was presented (Figure 1) and Kirchhoff’s voltage lawapplied to the loop: dI a VS = I a Ra + La + ea dt Page 13.192.4Students were reminded that the model parameters, Ra and La, describe the resistance andinductance of the motor armature windings, that the quantity, ea, is the back emf of the motor,and that, under steady-state operation (constant motor speed), the armature inductance can beignored. Ia
. Page 12.1343.2DE Laboratory AccessThe main development effort in the course was to supply laboratory exercises for DE students.Our past experience offering advanced networking courses in a DE environment served as abasis for developing the lab exercises, the student access management, and the hardwareconfiguration.Labs were conducted on equipment located on campus. Equipment was accessible to studentsanywhere with an Internet connection via secure shell (port 22) using IPv4 through an accessserver running custom scheduling software as shown is figure 1. This access topology andscheduling software was already developed and used in our DE advanced IPv4 networkingcourses. Public Network Access Network