Time: Wed 4:10, 414 Pupin Laboratories

BMEN 4738 is a participatory, "how to" course concerning the transduction and acquisition of biomedical data. The student is expected to learn to participate, to think like an bioengineer, and doing such to start to design biomedical devices and systems. We will do this firstly in class discussions, then as homework. The lecture notes will be posted on the web. Much of last year’s lecture notes will be helpful, and are already posted. The lecture dates are approximate, and we may spend more or less time on any one topic depending on class interest.

Lecture, Date, Topic

1. Jan 19 Origin of Signals

We will go in-depth into learning the origins of bioelectric heart signals (surface and ECG). We will discuss how heart surface bioelectric signals and body surface ECG signals are formed. We will discuss other origins of signals as well. How to go from source to receptor and vice versa.

2. Jan 26 Transducers – tonometry

Transducer, Circuitry, housing, and the tonometer device itself – how to put it all together. What does it measure? How to use piezoelectric sensors, and calculate the right sensor for the task.

3. Feb 2 Transducers – neonatal tension gauge

Factors in measuring stresses during the monitoring of neonatal infants. What must be factored into the design? How to build a tension monitor using strain gauges and bridge.

4. Feb 9 Filters – Frequency design

Why/why not is it desirable to filter the data prior to recording? How to implement filters in hardware or software (high, low, bandpass, notch).

5. Feb 16 Filters – Adaptive design

When signals/images change or are imbued with motion artifacts, what can the bioengineer do to correct the problem? How to use an adaptive noise cancellor (Widrow filter). Implementation in hardware (patent application).

Review of amplification, multiplexing, track/hold, analog to digital conversion from last semester.

7. March 1 Data Acquisition – bus interface

How to clock in the data to a PC computer.

How to use commercial plug-in PC boards in your acquisition system.

** March 15 Spring break – start of projects

9. March 22 Discussion - Design of front end.

Prof C will help you on your project – to work on a design for front end transduction. We will pool our information during class.

10. March 27 Discussion - Design of acquisition systems

Prof C will help you on your project – to work on fast acquisition system. We will pool our information as a class.

From: Acquisition and Analysis in Electrocardiology (EMB Magazine)

From: Acquisition and Analysis in Electrocardiology (EMB Magazine)

13. April 19 Sci Papers - Multichannel ElectroCardiography System

From: Acquisition and Analysis in Electrocardiology (EMB Magazine)

14. April 26 Sci Papers - monitoring minute volume

From: Acquisition and Analysis in Electrocardiology (EMB Magazine)

** May 3 Reading Day

** May 10 - Have a great summer!