- \n
- Lab Equipment<\/li>\n
- Circuit Simulator<\/li>\n
- Hantek 3-in-1 Digital Equipment<\/li>\n
- Powered Breadboard<\/li>\n<\/ul>\n
Assessment<\/h2>\n
The overall weighted grading scheme is as follows:<\/p>\n
Table 1\u00a0 \u00a0 \u00a0Overall Weighted Grading Scheme<\/strong><\/p>\n\n
\n\n
\n\t \nCategory<\/th> Percent of Overall Grade<\/th>\n<\/tr>\n<\/thead>\n \n\t AC Load Measurement<\/td> 50%<\/td>\n<\/tr>\n \n\t Demo<\/td> 15%<\/td>\n<\/tr>\n \n\t Report<\/td> 35%<\/td>\n<\/tr>\n \n\t Total<\/td> 100%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n I. The Challenge<\/h3>\n
![\"\"](\"https:\/\/www.ece.ucf.edu\/labs\/EEL3123\/wp-content\/uploads\/2023\/10\/Impedance.jpg\")
<\/p>\nFigure 1\u00a0 \u00a0 \u00a0AC Load Connection<\/strong><\/p>\n
Figure 1 shows the schematic of the circuit considered in this project. The circuit of interest contains an AC load denoted by ZL<\/sub>, which is connected between nodes A and B.<\/p>\n
At the start of a lab session, each group will be given an AC load that contains randomly chosen element types and values. With the AC load concealed<\/strong> in a box, your group is tasked with the challenge to achieve the following two objectives by the end of your lab session.<\/p>\n
- \n
- Determine the impedance value of the given AC load at a specific given frequency.<\/li>\n
- Determine the power factor value of the given AC load.<\/li>\n<\/ul>\n
The grades earned in this first category of assessment depend highly on your success in achieving the two objectives described above. The weighted grading scheme is as follows:<\/p>\n
Table 2\u00a0 \u00a0 \u00a0Weighted Grading Scheme for AC Load Measurement<\/strong><\/p>\n\n
\n\n
\n\t \nCategory<\/th> Percent of Overall Grade<\/th>\n<\/tr>\n<\/thead>\n \n\t Impedance<\/td> 40%<\/td>\n<\/tr>\n \n\t Power Factor<\/td> 10%<\/td>\n<\/tr>\n \n\t Total<\/td> 50%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n In the process of working towards the above objectives, you MUST<\/strong> follow the following rules. Violation of any of the following rules will result in penalty detailed in Table 3 below.<\/p>\n
- \n
- Rule #1:<\/strong> You are NOT<\/strong> allowed to unveil the AC load concealed in a box to help you achieve any of the two objectives described above.<\/li>\n
- Rule #2:<\/strong> You are NOT<\/strong> allowed to use the resistance measuring function on any instrument including digital multimeter (DMM), LCR meter, etc. to measure directly the resistance of any circuit element.<\/li>\n
- Rule #3:<\/strong> You are NOT<\/strong> allowed to use the capacitance measuring function on any instrument including digital multimeter (DMM), LCR meter, etc. to measure directly the capacitance of any circuit element.<\/li>\n
- Rule #4:<\/strong> You are NOT<\/strong> allowed to use the inductance measuring function on any instrument including digital multimeter (DMM), LCR meter, etc. to measure directly the inductance of any circuit element.<\/li>\n
- You are allowed to connect any circuit element externally to the AC load concealed in a box.<\/li>\n<\/ul>\n
Table 3\u00a0 \u00a0 \u00a0Penalty for Rule Violation<\/strong><\/p>\n\n
\n\n
\n\t \nAction<\/th> Consequence<\/th>\n<\/tr>\n<\/thead>\n \n\t Violation of Rule #1<\/td> Overall project grade will be ZERO.<\/td>\n<\/tr>\n \n\t Violation of Rule #2, #3 or #4<\/td> For each offense, 50% will be deducted from overall project grade.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n IMPORTANT NOTES:<\/strong><\/p>\n
- \n
- WARNING: If you unveil the AC load concealed in a box to help you achieve any of the two objectives described above, you will earn a grade of zero for this specific project regardless of how much work you have completed. Penalty for the violation of Rule #1 will be strictly enforced.<\/strong><\/li>\n
- WARNING:<\/strong> Pay attention to all the rules and penalties described above. Please understand that the penalties are not created to destroy your grade; they are established for the sole purpose of ensuring fairness among all students who work on this project.<\/li>\n
- Collaborations between any groups are strictly prohibited in this project.<\/li>\n<\/ul>\n
TECHNICAL NOTES:<\/strong><\/p>\n
- \n
- WARNING:<\/strong> If you use a DC power supply, be mindful of the current setting on the equipment to avoid undesirable incident.<\/li>\n
- Frequency response higher than 500 kHz will not be considered in this project.<\/li>\n<\/ul>\n
II. Demo<\/h3>\n
Perform the following tasks.<\/p>\n
- \n
- Provide both impedance and power factor values you have predicted for the given AC load to your Lab TA.<\/li>\n
- Demonstrate to your Lab TA how you have arrived at your conclusions. Provide detailed explanations and reasonings on how you have obtained the results during your demo.<\/li>\n
- Record down your results for the writing of your report.<\/li>\n<\/ul>\n
The weighted grading scheme for Demo is as follows:<\/p>\n
Table 4\u00a0 \u00a0 \u00a0Weighted Grading Scheme for Demo<\/strong><\/p>\n\n
\n\n
\n\t \nCategory<\/th> Percent of Overall Grade<\/th>\n<\/tr>\n<\/thead>\n \n\t Experimental Demonstration and Elaboration<\/td> 15%<\/td>\n<\/tr>\n \n\t Total<\/td> 15%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n IMPORTANT NOTES:<\/strong><\/p>\n
- \n
- All project demonstrations must be performed during a lab session. No project demonstration can be performed outside lab session.<\/li>\n
- All groups will be given only ONE<\/strong> lab session to demonstrate the accomplishment of the objectives described above.<\/li>\n
- HEADS UP:<\/strong> It is impossible to develop a working plan in a 2-hour lab session. To prepare fully for your project execution and demonstration, you are highly encouraged to perform circuit simulations and experiments at home so that you can figure out a plan for your project. To perform experiments outside of the laboratory, you can loan out a Hantek 3-in-1 digital equipment and a powered breadboard. You can also acquire circuit components from the laboratory, and they are not required to be returned.<\/li>\n
- SUGGESTION:<\/strong> You are strongly encouraged to complete the following tasks prior to your lab session.\n
- \n
- Establish an experimental plan to measure the impedance of a concealed AC load.<\/li>\n
- Figure out how to determine the power factor of an AC load.<\/li>\n<\/ul>\n<\/ul>\n
III. Report<\/h3>\n
Document all your analysis, results and findings in a report. The content of your report should include, but not limited to, the following sections.<\/p>\n
- \n
- Objectives and Tasks\u00a0\u2013 define and outline explicitly the objectives and tasks<\/li>\n
- Dissection of Experimental Plan \u2013 present your plan in a detailed, part-by-part analysis\n\u2013 explain the reasonings behind your plan using circuit theory<\/div>\n\u2013 provide detailed circuit analysis and calculation to justify your plan<\/div>\n<\/li>\n
- Experimental Results \u2013 present your experimental results with clarity\n
\u2013 include oscilloscope figures, screenshots of DMM measurements, etc.<\/div>\n<\/li>\n- Results Comparison \u2013 compare predicted impedance and power factor values with theoretical values\n
\u2013 analyze failure or success using circuit theory<\/div>\n<\/li>\n\u2013 explain discrepancies pertaining to concepts<\/div>\n<\/li>\n- Conclusions<\/li>\n<\/ul>\n
The weighted grading scheme is as follows:<\/p>\n
Table 5\u00a0 \u00a0 \u00a0Weighted Grading Scheme for Report<\/strong><\/p>\n\n
\n\n
\n\t \nCategory<\/th> Percent of Overall Grade<\/th>\n<\/tr>\n<\/thead>\n \n\t Objectives and Tasks<\/td> 2.5%<\/td>\n<\/tr>\n \n\t Dissection of Experimental Plan<\/td> 15.0%<\/td>\n<\/tr>\n \n\t Experimental Results<\/td> 5.0%<\/td>\n<\/tr>\n \n\t Results Comparison<\/td> 10.0%<\/td>\n<\/tr>\n \n\t Conclusions<\/td> 2.5%<\/td>\n<\/tr>\n \n\t Total<\/td> 35%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n","protected":false},"excerpt":{"rendered":" - Experimental Results \u2013 present your experimental results with clarity\n
- HEADS UP:<\/strong> It is impossible to develop a working plan in a 2-hour lab session. To prepare fully for your project execution and demonstration, you are highly encouraged to perform circuit simulations and experiments at home so that you can figure out a plan for your project. To perform experiments outside of the laboratory, you can loan out a Hantek 3-in-1 digital equipment and a powered breadboard. You can also acquire circuit components from the laboratory, and they are not required to be returned.<\/li>\n
- Frequency response higher than 500 kHz will not be considered in this project.<\/li>\n<\/ul>\n
- WARNING:<\/strong> Pay attention to all the rules and penalties described above. Please understand that the penalties are not created to destroy your grade; they are established for the sole purpose of ensuring fairness among all students who work on this project.<\/li>\n
- Rule #2:<\/strong> You are NOT<\/strong> allowed to use the resistance measuring function on any instrument including digital multimeter (DMM), LCR meter, etc. to measure directly the resistance of any circuit element.<\/li>\n
- Rule #1:<\/strong> You are NOT<\/strong> allowed to unveil the AC load concealed in a box to help you achieve any of the two objectives described above.<\/li>\n