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mrpyro
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Traceable Calibration
mrpyro   8/15/2014 11:31:10 AM
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Traceable calibration needs to be done before the FIRST significant measurement is attempted. Otherwise you have little assurance of a way to reproduce results. Recommended reading is Traceable Temperatures, 2d Ed by Nicholas & White (Wiley 2001). It's much more about measurement reliability than it is about temperature measurement.

MeasurementBlues
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Keep the quizzes coming?
MeasurementBlues   8/15/2014 11:55:14 AM
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I have quizzes in our backoffice system that will post on the next three Fridays.

Feel free to submit your own multiple-choice questions. Please keep them focused on electrical engineering preferably test & measrurement. We'll excuse Max, for he knows not what he says :-)

martin.rowe@ubm.com

Max The Magnificent
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Re: Keep the quizzes coming?
Max The Magnificent   8/15/2014 11:59:32 AM
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@MeasurementBlues: Feel free to submit your own questions.

Do these trousers make me look fat?

Andy_I
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Two quick comments:
Andy_I   8/15/2014 12:54:07 PM
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(1) I missed Question 6.  I answered 4, but the correct answer was D.

(B) Oh, never mind.

 

David Ashton
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Re: Keep the quizzes coming?
David Ashton   8/15/2014 7:52:56 PM
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@Max: Q:Do these trousers make me look fat?

A: Yes, you need to cut down on the bacon...

Max The Magnificent
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Re: Keep the quizzes coming?
Max The Magnificent   8/18/2014 10:40:29 AM
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@David: A: Yes, you need to cut down on the bacon...

Now I'm wearing my sad face...

David Ashton
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Re: Keep the quizzes coming?
David Ashton   8/18/2014 7:17:57 PM
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@Max..."Now I'm wearing my sad face..."

"There, there!
I didn't really mean it;
Here's milk for his porringer
And bacon for his bread."

(With apologies to AA Milne)

Measurement.Blues
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Re: Keep the quizzes coming?
Measurement.Blues   8/19/2014 6:12:24 PM
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I cut down on the bagels ot 1/2 (sliced) bagel a week. But, I'm not sure Max can cut down on the bacon.

Measurement.Blues
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Re: Keep the quizzes coming?
Measurement.Blues   8/19/2014 6:13:55 PM
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Max, are you saying you need calibrated waistband or scale? If it's not traceable to a national standard, can you trust measurements taken with it?



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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