Measurement Accuracy & Calibration
The cluster focuses on discussions about the precision, accuracy, calibration needs, and tolerances of various measurement devices such as calipers, scales, rulers, and sensors, with users questioning the reliability of cheap tools and emphasizing proper calibration.
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What's the current precision for measuring devices?
What's the point of automatically taking wildly inaccurate measurements?
How do you know it's accurate? Have you calibrated it? :)
measurement devices do not have 'bias' they have 'tolerance'. Give them some credit
I see no mention of calibration.. Calibration is important. Even if you don't do it you should be aware of what the error might be.
Cool product! I come from a measurement/calibration background, so I'm curious about the accuracy of your system. Have you tested this against lab equipment, or do you have plans to specify accuracy with proper tolerance intervals?What about measurement uncertainty and unit-to-unit variability? I know this is consumer hardware, so I dont expect a full blown evaluation but have you characterized expected performance?
Yes, and these cheap devices sadly don't have accuracy description. I would be OK to pay for it if some accuracy would be guaranteed, but writing that it's calibrated and not specifying the maximal error looks always fishy.
Wouldn't that depend on the accuracy of the tool doing the measuring?
Accuracy will largely depend on calibration standards used. A good set of those that goes up to 6 GHz will cost many times the cost of this device.
how do they even measure a half centimetre accuracy?