Virtual On line
June 22, 2020
June 22, 2020
June 26, 2021
Experimentation and Laboratory-Oriented Studies
Electric circuits is a common course for engineering. Understanding circuit and component behavior requires connecting one to connect the concept of invisible electron motion to voltage measurements, making this course challenging for some. This 10-module course was designed to enable concrete understanding. It uses the voltage divider as a basic instrumentation circuit for sensors and advances to filtering, feedback, and amplification circuits using operational and instrumentation amplifiers. During the course, students use breadboards and circuit components to design, build and test circuits that measure: temperature, weight, relative humidity, their heartbeat, their blood pressure, and distance by ultrasonic echo-location. By the end of the course, students are able to: apply Kirchoff's law to design of low-pass, high-pass and bandpass filters, amplifiers, and 2nd order roll-off filters; measurement of frequency response of a filtering circuit using a Bode plot; create a calibration curve (or transfer function) for a sensing circuit; use computational tools to analyze data and transform measured data; troubleshoot an instrumentation a circuit. A feature of the course is that it is designed to support self-directed learning for a diversity of learners, with an aim to strengthen their sense of mastery and agency. The design elements include: Textbook; video lectures; instructions that incorporate recommended "best practices" for neuro-diversity, instructional design and visual navigation. The materials have been piloted and refined over a period of 7 years with approximately 500 students. Course materials can be downloaded at no cost; future development includes low-cost, supporting hardware. This paper describes the design elements of the course and modules and a data set on what a cohort of roughly 90 students find helpful to their learning.
Storey, B. D., & Minch, B. A., & Vanasupa, L. (2020, June), Work in Progress: A Modular Course on Sensors, Instrumentation, and Measurement: Supporting a Diversity of Learners' Agency of Self-direction Paper presented at 2020 ASEE Virtual Annual Conference Content Access, Virtual On line . 10.18260/1-2--35597
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