Lecture 7 - Data Acquisition

Date: 9/13/16

Summary

In this lecture we will introduce principles of data acquisition, because to do science we need to collect data from our machines!

Class Plan

• Introduce the DAQ flow (physical system, transducer, signal conditioning, A2D, and computer)
• Give a high level overview of each block of the system
• Show common gotcha cases for data acquisition (aliasing, signal integrity, system loading)
• Show common systems used for DAQ (LabView/NI, LabJack, DATAQ, Omega, GDS)

Activity

Using your inventor’s kit complete the Flex Sensor Data Acquisition activity.

Assignment

Complete the Flex Sensor Data Acquisition activity if you did not during class. Email us a plot (from the Arduino IDE, or one that you made) of your flex sensor flexing. Due 9/15/16

Media

Lecture 7 Slides

Instructor Notes

A few additional items need to be brought to class to accomplish the in-class activity:

• Multimeters to measure resistance of resistors and bend strip
• 47k resistors to use in the voltage divider