IMG Seminar: Special measurement techniques

Event date: 
Friday, June 11, 2010 - 3:00pm to 4:00pm
Event location: 
Larsen 234

Device and circuit characterization is one of the routine tasks that most IMG students will face. Some of the characterization procedures become very challenging because of equipment limitations. For example, the parameter being measured is out of the range of available equipments, or the equipment does not have the functionality to create conditions required by the measurement.

In this talk, three basic techniques are discussed to help solve some of the common problems. They are:

  1. Real-time measurement of small current (~20 uA) using a current prob.
  2. Low frequency impedance measurement (< 40Hz) using a signal analyzer and current probe.
  3. Closed loop acceleration control of the shaker, accelerometer, and signal analyzer.

The talk, given by Shuo Cheng, starts with a 30 minute technical overview in Larsen 234 followed by a 30 minute demo in Benton 214.