Physics307L:People/Le/Notebook/070827

--Linh N Le 15:59, 27 August 2007 (EDT)

Using: Tektronix TDS 1012 two channel digita storage oscilloscope and Heathkit ET-1000 Circuit Design Trainer

Basic Waveform Measurment

Sine Wave Freq ~ 100Hz

Using the Grid

• Peak to Peak Voltage: ~2.7V
• Period: 10ms

Using the Cursor

• Peak to Peak Voltage:
  • Top of Peak 1.40V
  • Bottom of Peak -1.32V
  • Delta V 2.72V
• Period
  • Frist Crest -7.20ms
  • Second Crest -17.20ms
  • Delta t 10.00ms

Using "Measure" Function

• Peak to Peak Voltage: 2.74V
• Period: 10.00ms

Now after changing the frequency, and changing the voltage by playing with resistors on the bread board

Sine Wave Freq ~ 500Hz

Using the Grid

• Peak to Peak Voltage: ~.8V
• Period: 2ms

Using the Cursor

• Peak to Peak Voltage:
  • Top of Peak .416V
  • Bottom of Peak -.40V
  • Delta V .816V
• Period
  • Frist Crest -3.560ms
  • Second Crest -1.560ms
  • Delta t 2.00ms

Using "Measure" Function

• Peak to Peak Voltage: .785V
• Period: 2.0ms

The only wave forms available to me were square, inverse sqaure, sinusoidal, and traingular. The oscilloscope was able to measure all of them, although resolution was bad in high frequency and low amplitude

AC Coupling

Applying a large DC voltage while measuring in AC allows me to look at the fluctuations that are caused by my DC powersource deriving its power from an AC source.

In DC mode, all I see is a straight line at the 12V mark. When I change it into AC mode, I can zoom in and look at the subtle fluctuations.

• Cycle RMS from 1.00mV to 2.00mV
• The triggering to look at the ripples is very sketchy. I found that Video triggering reduced alot of the "fuzzyness" and sometimes it would freeze the screen.