Oscilloscopes

 

Screen Capture & Printing using Agilent IntuiLink Software

Instructions to capture and print>>http://www.seattleu.edu/scieng/ece/ScopeSetup.html

Manuals and Tutorials

Agilent DSO7012BManuals

Agilent MSOX2002A Manuals | Training Kit

Oscilloscope Probe Hints

8 Hints for Better Scope Probing

  1. Passive or active probe?
  2. Probe loading check with two probes
  3. Compensate probe before use
  4. Low current measurement tips
  5. Make safe floating measurements with a differential probe
  6. Check the common mode rejection
  7. Check the probe coupling
  8. Damp the resonance

8 More Hints for Making Better Scopes MeasurementsThese hints were submitted to us by hard-working engineers who face the same issues you do.

 

Spectrum Analyzers

 

Screen Capture & Printing using AgilentBenchLinkSoftware

Instructions: http://www.seattleu.edu/scieng/ece/SpectrumAnalyzerSetup.html

Manuals

HP 4195A/B Spectrum/Network Analyzer

Fluke45 Website

 

Screen Capture & Printing using AgilentIntuiLinkSoftware

Instructions:http://www.seattleu.edu/scieng/ece/HP4195ASetup.html

Manuals

 

Meters

Signal Generators

Every time you turn on the Agilent 33220A or 33120A signal generator, you must set the output termination to HIGH-Z mode. If you fail to do this, you may accidentally produce voltages twice as high as you intend, and this may damage your chip. How to set this

Agilent 33120A Website  

Agilent 33220A Website  

The waveforms contained in the Arbitrary Waveform Library are:

1. DTMF_0 - dual tone multiple frequency number 0
2. DTMF_9 - dual tone multiple frequency number 9
3. Full Rectify - full wave rectified sine
4. Half Rectify -have wave rectified sine
5. Gaussian - Gaussian pulse
6. PSK - 180 degree phase shift keying using sine wave
7. Ringing Square - square wave with damped sine wave ringing
8. SCR - SCR firing profile
9. Trapezoid - trapezoidal wave shape
10. Staircase - increasing and decreasing staircase waveform
11. RS-232 - serial bit stream spelling "Agilent" at 115.2 kBaud
...more is available

 

Power Supplies

Agilent E3630A E3630A PowerSupplyc249 | Website

Power Supplies in Parallel for Higher Current Output: http://www.home.agilent.com/agilent/faqDetail.jspx?cc=US&lc=eng&ckey=520808&nid=-35673.0.00&id=520808

Not related specifically to the E3630:

  • Improve Power Supply Performance and Safety Using Remote Sensing and Remote Disable
  • Create Complex Sequences with a DC Power Supply
  • Achieve Cleaner Power Signals by Minimizing Common Sources of Noise

Tektronics 370A Curve Tracer

Screen Capture & Printing using Print Capture software

PrintCapture Setup Instructions: TEK370 Setup for PrintCapture-rev22d45

Tek370 Standard Setup Configuration

Manuals

Feedback Discovery II Antenna Lab

DiscoveryIIProblemsSolutions7ed3

More How Toos

Master the following and you are indeed a master of your EE environment. The following documents contains a variety of instruction and hints to help you understand and improve your troubleshooting skills and use of EE equipment.

Agilent Classroom Resources

Best of 8 Hints for Making Better Oscilloscopes Measurements

Table of Contents

  1. Tracking down elusive glitches
  2. Analyze harmonic distortion using FFTs
  3. Verifying PWM dead time in motor controllers
  4. Use holdoff to stabilize complex digital waveforms
  5. Troubleshooting infrequent events
  6. Using arbitrary waveforms for bit-error testing
  7. Correlating software and analog outputs in a CAN controller
  8. A quick, easy way to troubleshoot mixed hardware/software prototypes

8 Hints for Better Scope Probing

Table of Contents

  1. Passive or active probe?
  2. Probe loading check with two probes
  3. Compensate probe before use
  4. Low current measurement tips
  5. Make safe floating measurements with a differential probe
  6. Check the common mode rejection
  7. Check the probe coupling
  8. Damp the resonance

8 More Hints for Making Better Scopes Measurements

Table of Contents

  1. Don't forget to check that probe
  2. A quick, easy way to troubleshoot mixed hardware/software prototypes
  3. Using scopes to measure noisy signals
  4. Getting intimate with your noise
  5. Looking for EMI and EMC noise sources with your scope probe
  6. Taking a look at eye patterns
  7. Custom graticules work for any scope
  8. How much of the time is my signal on?

Integrated Debugging- A New Approach to Troubleshooting Your Designs with Real-Time Oscilloscopes
Some of the typical analysis software that runs on the oscilloscopes are eye pattern, jitter analysis, compliance test procedures, and protocol decode. These tools are used in different ways to debug and analyze design problems.

Tektronics Classroom Resources

* Oscilloscope Fundamentals http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15094&lc=EN

* Probe Fundamentalshttp://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=afs&ci=15149&lc=EN

* Signal Generator Fundamentals http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=afs&ci=15148&lc=EN

* Real-time Spectrum Analyzer Fundamentalshttp://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=afs&ci=15150&lc=EN

* Logic Analyzer Fundamentals http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=afs&ci=15151&lc=EN

* Signal Integrity Fundamentalshttp://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15152&lc=EN

* Jitter and Timing Fundamentals http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=afs&ci=15153&lc=EN

* Power Supply Measurement and AnalysisFundamentals http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15093&lc=EN

* SDRAM Testing Fundamentals http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15154&lc=EN

* Low Speed Serial Data Fundamentalshttp://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15155&lc=EN

* High Speed Serial Design Fundamentals http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15156&lc=EN

* Radar Measurement Fundamentalshttp://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15157&lc=EN

* Ultra-wideband Radio Fundamentals http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15158&lc=EN

* Digital Modulation Fundamentalshttp://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15159&lc=EN

* FPGA Debug Fundamentalshttp://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15160&lc=EN

* Pocket Guide to Oscilloscopes http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=rfg&ci=4864&lc=EN

* The Oscilloscope: Basic Features and Functions http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pos&ci=14992&lc=EN

* Pocket Guide to Signal Sourceshttp://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=rfg&ci=15175&lc=EN

* Fundamentals of Floating Measurementshttp://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=apn&ci=3214&lc=EN

www.tek.com

Lecroy Technical Brief

Testing Audio Devices with Digital Oscilloscopes:http://cdn.lecroy.com/files/appnotes/lecroy_testing_audio_devices.pdf

Testing Microcontrollers with Digital Oscilloscopes:http://cdn.lecroy.com/files/appnotes/lecroy_testing_microcontrollers.pdf

Testing Sensors and Actors with Digital Oscilloscopes:http://cdn.lecroy.com/files/appnotes/testing_sensors_and_actors_using_digital_oscilloscopes.pdf

How to Debug, Decode, Trigger Low-Speed Serial Buses such as CAN, SPI, I2C RS232-RS485

Video Presentation
Low-Speed_Serial4356
Debug Serial Buses-Tek34ab

General Questions

What is the difference between Run/Stop and Single on the front panel?

When the Single key is pressed on the front panel, the current acquisition is cleared and the scope acquires its full deep memory on a single acquisition on the next trigger event. The important fact is that the full deep memory will be filled on one trigger. Note that if only one scope channel is on, 4 MB will be acquired. If two scope channels are on, 2 MB will be acquire on each channel. After the single acquisition, the scope will STOP with the red LED of the Run/Stop coming on. When doing single shot work, it is highly recommended that the SINGLE key be pressed.

A different sequence will occur when the Run/Stop key is pressed. If the scope is stopped (red LED is on), the scope will start to run. If the scope is running and the Run/Stop key is pressed, the scope will halt. Current acquisition data is not cleared; the scope simply halts. The scope's full deep memory may not be filled, with the scope storing only 1 MB of data per channel. If a second trigger occurs quickly enough after the Stop key is pressed, the scope will execute a "deep stop", acquiring another MB of data bringing the memory depth to its max.

It is for this reason that we recommend the use of the SINGLE key when doing single acquisition as it will assure that the full deep memory is utilized

Why do I see more noise on my oscilloscope when a probe is connected?

The typical noise floor of a digitizing oscilloscope is a few millivolts peak-to-peak. You can measure the noise floor of your oscilloscope by disconnecting all cables and probes from the inputs and changing the volts per division setting to the lowest possible value. Set the scope to Auto trigger and you will see a baseline of the scope's internal noise.

All currently shipping Agilent scopes have an "Auto Probe" feature that automatically identifies connected probes. When a probe is connected, the scope changes its attenuation setting so that it correctly displays the voltage coming from the probe. For example, a typical passive probe has a 10:1 attenuation ratio, which means that the probe divides the signal by a factor of 10 before presenting it to the scope. The scope compensates for this attenuation by multiplying the input signal by a factor of 10.

SinSince the oscilloscope cannot distinguish between the external signal and the internal noise floor, the noise floor is also multiplied by the attenuation factor. Therefore with a 10:1 probe connected to a scope channel you can expect the noise floor to increase by a factor of 10. For this reason it is best to use a 1:1 probe, an active probe, or a simple coaxial cable to view low voltage signals.

How do I check for phase difference between two channels?

Reading Phase Difference Between Two Channels