Whats the meaning of tolerance, resolution, accuracy and precision?
Tolerance is the acceptable deviation from specification. Resolution is the minimum increment to which a measurement can be made. For us, this is a design parameter of the X-Y stage motion encoders or galvo. Accuracy is how close a measurement is to the “true” value. “Truth” is the traceability of the measurement to a primary standard at NIST, a USA governmental agency, National Institute for Standards & Technology. For us, this is conformance to our customer’s metrology. Precision is repeatability. For us, precision is half the increase in laser line width or hole diameter when the laser is run repeatedly over the same part a number of times.
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