Explore Fourier Transform and Filtering in 2 dimensions (i.e., images).

Put a heater on one end of a metal rod, and measure, predict and model the temperature along the length of the rod.

Read up on compartmental modeling and model some physiological system (e.g., glucose metabolism…)

Analyze and simulate the double pendulum without the small angle approximation.  Include an animation.

Build an electronic analog computer (a circuit analog to Simulink) using integrators and summers….

Try to model the friction of the double pendulum experiment.  The friction is closer to kinetic than viscous, so you’ll need a non-linear model (either your R-K, or simulink).  This has some interesting aspects to it (as friction often does).

Put a heater in a box and try modeling the temperature in the box over time.

Build a small dial with a pointer and measure the transfer function of your hand as you try to follow a moving target.

Record the audio impulse response (pop a balloon) and record the audio impulse response of various locations around campus.  Play various sounds through the impulse response and explore the results.

We have a triple pendulum system – explore the modes of oscillation of this sixth order system, experimentally and in simulation.

Get data from double pendulum using a vision capture system.

Redo the double pendulum experiment with better and newer hardware.

• Use an air track to get oscillating masses instead of pendulum (or some kind of “air” bearing) (to reduce friction).
• Measure position/velocity  wirelessly (so no friction), or with a permanently mounted webcam with image processing software.
• Put everything together in a robust and easy-to-use package.

This project combines, mechanical, electrical (maybe) and computer work.

Design and build an wing (or other structure) with integrated digital pressure sensors (perhaps with wifi or bluetooth) so that multiple pressure measurements can be taken with minimal (or no) physical connections to the data acquisition system.

A sample of a sensor (cheaper sensors are available) is at: SSCDANT030PG2A3 Honeywell Sensing and Control | 480-3338-ND | DigiKey.

Be creative and come up with a project idea of your own.  The major factor is time – you have only 3 weeks to complete the project.

If you want to do a project with wireless communication and don’t mind writing the communications software at a low level (or want to learn how to do this) check out the development system from TI.  Note: this is much less capable than something like wifi, but much lower power (both Watts and processing power).

Build a bidirectional motor control – use an H-bridge with PWM to control a motor spinning in both directions.  Put it on a PCB to control E72 robots.

Measure EMG signal and use this to control a robotic gripper.

The median frequency of the EMG (electromyogram; the electrical signal from muscle) is related to fatigue (frequency decreases as fatigue increases).  Build hardware/software to measure frequency.  This can be done with either analog or digital circuitry.

Research and build an equi-ripple group delay filter (mostly theory).  This filter is to a Bessel filter as Chebyshev is to Butterworth (an analogy that will probably never make it to the SAT).

Build a lock-in amplifier.  This is a very useful device for finding small signals within noise.

Build a spectrum analyzer using only (or mostly) analog components.  This isn’t too difficult, but involves a few subsystems that must interact correctly.

From Rebecca Roberts in the Scott Arboretum:

The Scott Arboretum is exploring the opportunity to bring DATA GARDEN to the campus in fall 2013.  We hope this will be a great opportunity to collaborate with other departments and involve students. Data Garden will design exhibits throughout the gardens that encourage exploration of the natural environment through live musical performance and sculpture that blurs the distinction between the biological and digital worlds. They exhibited at Bartram’s Garden last year, check out the video: http://vimeo.com/35915131

The “bio-interactive” art installations focus on connections between plants, music, and technology. They use electronic impulses produced by plants to generate music; crossing of biology, engineering, and musical disciplines. Making a unique blending of arts and sciences.

These exhibit will grace the campus for 3 days culminating a concert in the Scott Outdoor Amphitheater. Electronic musician and sound artist, Tim Hecker will headline the concert with 2 to 3 opening acts. This would be a great opportunity for student groups, classes, and projects.

With a proposed date of October 2013, there is plenty of time to incorporate efforts into syllabi for Fall 2013 semester.

Those interested in becoming involved in this project should contact Becky Robert at 610-328-8023 or rrobert1@swarthmore.edu by Aug. 31.

```-- Rebecca Robert PR and Volunteer Programs Coordinator The Scott Arboretum of Swarthmore College 500 College Avenue Swarthmore, PA 19081 Phone: (610) 328-8023 Fax: (610) 328-7755
rrobert1@swarthmore.edu```

Stepper motors are very useful in situations where precise control of position is needed, but without direct feedback.  Design and build such a controller.

Brushless motors are somewhat more complicated to control than standard (brushed) DC motors.  Design and build a controller for a brushless motor.