Thank you for the simple explanation of the measurement uncertainty. I had explained the concept to my analyst for years, most of them can't understand the concept very well, even with help of Eurachem and NATA guide. I will share the video with my team and see the outcome.
No. The uncertainty isn't the difference between the measured value and the true value, or 6.1-5.7 = 0.4. Since we don't know the true value, we choose an uncertainty range of a size sufficient to give us a high probability that the true value is within the range. The uncertainty in the example of 0.5 is chosen dependent on the definition of "high" in the probability and the variance in your measurements. Typically we chose a range that gives us a 95% probability that the true value is within the range. But again, it depends on the probability and the measurement variance.
@@krispickrell2864 according to GUM uncertainy only characterise our knowledge about measurement done. And in many many measurement models 95% range not obviousely relates to 'true value', but rather to measurand.
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Thank you for explaining the "abstract" in plain and simple language for all to understand. Excellent work!
This guy is my spirit animal.
Thank you!
I hope this guy is doing well, such thorough but well paced lecturing!
Thank you Ivo. Best explanation of measurement uncertainty I have seen so far.
I'm grateful prof ivo for the foundation you gave me in this subject and for simplifying measurement uncertainty
Thank you for the simple explanation of the measurement uncertainty. I had explained the concept to my analyst for years, most of them can't understand the concept very well, even with help of Eurachem and NATA guide. I will share the video with my team and see the outcome.
very helpful and clear introduction to the concept of measurement uncertainty
Excellent presentation . He really made the concept come alive.
Do you have enough pens?
Clear explanations! Better than a lot of (useless) books!
Thank you
Great video. Very well explained and engaging.
شكرا كثيرا للشرح الممتاز والسهل . مادة علمية ممتازة وشرح رائع . شكرا جزيلا
Thanks
(Thank you Sir, it is very important to understand the concept of uncertainty in measurements (test or calibration
Where did you get that 0.5 measurement uncertainty?
Great! you can also see my lesson in topic. It may be a different approach. Update me about your opinions.
It is a good foundation of understanding uncertainty measurement
Thanks, i am understan you !
i like your accent and the way you teach
the true value of lead should be in the range:5.6........6.6 mg/l. is the 5.6 mg/l correct?, shouldn't it be (5.7 minus 0.5= 5.2mg/l).
No cause you have to use measured value as a reference point (not true value because we do not know the true value) so 6.1 +- 0.5 mg/l :)
Well explained, thanks!
Superb
Great Thanks
Gracias
The uncertainty should be .4
No. The uncertainty isn't the difference between the measured value and the true value, or 6.1-5.7 = 0.4. Since we don't know the true value, we choose an uncertainty range of a size sufficient to give us a high probability that the true value is within the range. The uncertainty in the example of 0.5 is chosen dependent on the definition of "high" in the probability and the variance in your measurements. Typically we chose a range that gives us a 95% probability that the true value is within the range. But again, it depends on the probability and the measurement variance.
@@krispickrell2864 thanks that help a lot! i was quite confuse just now
@@krispickrell2864 according to GUM uncertainy only characterise our knowledge about measurement done. And in many many measurement models 95% range not obviousely relates to 'true value', but rather to measurand.