EE-436 is a capstone design course, so be prepared to design medical instrumentation systems! This page covers the basic information that is common to all of the laboratories.
The purpose of the laboratory is to provide hands-on experience with the topics and systems described in the course. These will be primarily electronic systems for the measurement of human physiological parameters. The laboratory problems will involve some degree of research and development on the part of each student group. This will involve both the design, prototyping and testing of electronic circuits, as well as the development of measurement procedures for characterizing the circuits and using the systems in practice.
Each group will consist of either 2 or 3 students. Each group must submit ONE set of design documentation for each project. Each student in the group receives the same laboratory design project grade; thus, you should choose a group that you can work well in! Students MAY NOT switch between lab groups throughout the quarter.
|Sections:||AA||Tuesday, 11:30am - 2:20pm||room 137 EEB|
|AB||Wednesday, 10:30am - 1:20pm||room 137 EEB|
|First Lab Meeting:||AA||Tuesday, April 9, 2013||room 137 EEB|
|AB||Wednesday, April 10, 2013||room 137 EEB|
|Lab Schedule:||Lab 1||Weeks 2 and 3, Apr. 8 through April 19||Due Monday, April 22|
|Lab 2||Weeks 4 and 5, April 22 through May 3||Due Monday, May 6|
|Lab 3*||Weeks 6 - 10, May 6 through June 7||Due Monday, June 10|
|*NOTE: Lab 3 is the capstone design project.|
Structure of the Laboratories and Design Projects:
The laboratory for EE-436 involves two starter design projects (Lab 1 and Lab 2) which are intended to accelerate each group's progress toward the third project which is the capstone design for the quarter (Lab 3).
Each student group can choose one of four different options for Labs 1 and 2:
Option A: Electrophysiology
Lab 1A: Design of an ECG Preamplifier
Lab 2A: Design of an ECG Recording System
Option B: Circulation
Lab 1B: Design of an Optical Heart Rate Monitor
Lab 2B: Design of a Pulse Oximeter
Option C: Respiration
Lab 1C: Design of a Differential Pressure Pneumotachometer
Lab 2C: Design of a Respiratory Capnometer
Option D: Metabolism
Lab 1D: Design of a Limb Motion Accelerometer
Lab 2D: Design of a Muscle Dynamics Tonometer
Laboratories 1 and 2 are linked pairs for each of the four options. Laboratory 1 starts the development of a core design, and Laboratory 2 takes that design a step farther in sophistication and complexity. Hence each of the four options Lab 1 and Lab 2 must be taken as sequential pairs.
Laboratory 3 is the capstone design project which will occupy the second half of the quarter. Laboratories 1 and 2 are intended to provide a core design upon which the capstone design project can be based. It is not essential to use the designs of Lab 1 or Lab 2 within the capstone project, but the effort spent on them could save some development time for the capstone project. The capstone design projects are proposed by the student groups, and some library and web research will be required to properly specify the design goals and performance criteria. Some of these aspects will be undertaken as homework problems.
While the subject matter of this class is medical instrumentation, the class itself DOES NOT provide any training or certification in the practice of medicine! Students should NOT assume that they are qualified to perform any medical or clinical procedures by being in the class or having taken it. These skills are taught in the Department of Medicine, NOT in the College of Engineering. Similarly, students are expressly forbidden to perform any clinical practices as part of the laboratory. These would include, for example, taking blood or tissue samples from fellow students, placing electrodes on their own or a fellow student’s body, or measuring any fellow student’s physiological parameters without their express consent. When in doubt, consult the teaching assistant or the instructor!
Each of the design projects requires a suitable set of design documents to be submitted. The file Electronic Design Documentation describes what should be included in a documentation package, and gives some general guidelines for putting one together. An example of a complete design documentation package is the Leach 120 Watt Stereo Power Amplifier. This is only an example of what a set of design documents should look like in their level of detail and organization. The specifics of what is required for each laboratory will vary, and guidelines for each will be given in the grading sheets. The documentation for the capstone design project (Lab 3) will be more extensive than for Labs 1 and 2. More details of that will be discussed in class.
Parts for Prototyping:
Each of the laboratories will require that some components be purchased from either the EE Stores, or from another electronic parts supplier. A solderless breadboard (aka superstrip) is generally a good route for prototyping the circuits used in the laboratory. These can also be purchased from the EE Stores. Data sheets for common parts and transducers can be found in the Laboratory > Parts page, along with some guidance on selecting and purchasing them. Many of the more specialized sensors shown on this page can be obtained from the instructor. Ask before buying!
LabVIEW Data Acquisition:
Some of the design projects will require the development of a LabVIEW data acquisition interface and subsequent signal processing. Here is a Quick Tutorial on LabVIEW Data Acquisition.
Tektronix AFG3021 Arbitrary / Function Generators:
The Tektronix AFG3021 arbitrary / function generators (single channel, 250 MS/s, 25 MHz) can be used to produce a simulated ECG signal for testing the designs of Lab 1A and 2A. Here are 3 ECG waveforms (.tfw files) that can be played back on the this instrument:
ECG signal at 30 bpm (30 beats per minute, 0.5 Hz)
ECG signal at 60 bpm (60 beats per minute, 1.0 Hz)
ECG signal at 180 bpm (180 beats per minute, 3.0 Hz)
To load any of these into the Tektronix AFG3021 arbitrary / function generator, first copy them over to a USB flash drive, and then use the following steps:
- Turn on the function generator and attach the flash drive to the USB port in the front of the instrument.
- Press Arb to select the arbitrary waveform menu
- Press USB in the memory menu
- Select the proper file from the USB memory; navigate the folders as necessary using the Change Directory button
- Use the WriteTo option in the Edit menu to copy the .tfw file to the function generator
- Play the file using the normal front panel controls