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Announcements

New Student Retreat 
An opportunity for first year and transfer students to get away for a weekend in order to meet new students, reflect on how the year is going so far, and spend time in the beautiful Pacific Northwest. Get future dates

  

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Join SHPE and take advantage of its Career Fair.
Officers 

  

The electrical engineering program is accredited by the Engineering Accreditation Commission of ABET http://www.abet.org/ 

Student Software

  • Microsoft DreamSpark
  • e-academy.com  
  • Design Software  
  • School World  
  • Cadence Acknowledgement 

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Electrical & Computer Engineering Department 
Seattle University
901 12th Ave. Bannan 209
Seattle, WA 98122-1090

TEL: 206.296.5970
FAX: 206.296.5962

 

College of Science and Engineering > Electrical & Computer Engineering > Laboratory

Laboratory Instruments Home Page

 

Oscilloscopes

 student-scope-electrical-engineering-school-2000-series      student-scope-electrical-engineering-school-7000b-series

 

Screen Capture & Printing using Agilent IntuiLink Software

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

 
Manuals and Tutorials

Agilent DSO7012B   Manuals

Agilent MSOX2002A   Manuals        |    Training Kit

Agilent 54621A          Manual | Website

Agilent 54603B          Manual | Website

Agilent 54645D         Manual | Website  

 

Oscilloscope Probe Fundamentals

 Probe Fundamentals

  1. Probes - The Critical Link to Measurement Quality
  2. Different Probes for Different Needs
  3. A Guide to Probe Selection
  4. How Probes Affect Your Measurements
  5. Understanding Probe Specifications
  6. Advanced Probing Techniques
  7. Explanation of Safety Precautions

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

  

Spectrum Analyzers 

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Screen Capture & Printing using Agilent BenchLink Software 

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

Manuals

  • HP E4411B Manual Volume1 - Volume2 | Measurement Guide | Calibration | Website
  • P L1500A Manual | Measurement Guide | Service | Website

 

HP 4195A/B Spectrum/Network Analyzer

hp_4195a

  

 

 

 

 

 

  

Screen Capture & Printing using Agilent IntuiLink Software

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

Manuals

  •  HP1495A/B  Manual | Website

  

Meters

Fluke45(1)
 
 
 Fluke 45 Manual & Supplement | Service | Website  
 
 

Signal Generators

 

  

33220A
 

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 Manual | Website  

Agilent 33220A Manual | 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

 E3630
Agilent E3630A Manual | 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

Tek370
 

 

 

 

Screen Capture & Printing using Print Capture software

Instructions: Screen Capture & Printing Document 

Manuals 

  • Tek370 Manual | Service  
  • Click to view  Standard Setup 

  

Feedback Discovery II Antenna Lab

Antenna_Electrical_Engineer DiscoveryII-Antenna_Electrical_Engineer_DegreeAntenna_Computer_Engineer Troubleshooting

 

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 Fundamentals http://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 Fundamentals http://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 Fundamentals http://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 Fundamentals http://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 Fundamentals http://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 Fundamentals http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=pri&ci=15159&lc=EN

* FPGA Debug Fundamentals http://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 Sources http://www2.tek.com/cmswpt/tidownload.lotr?ct=TI&cs=rfg&ci=15175&lc=EN

* Fundamentals of Floating Measurements  http://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
PDF Version
Application Notes

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?

TheThe 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

 

 

 

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