Definition Measurement Error - Precise definition of Measurement Error

Z

Zanzi

#1
#1
Does anyone have a precise definition of what is meant by measurement error in a gauging system. Is it the same as total variation - the combinatin of R&R and part variation - or something different?

Thanks:confused:
 
12 questions to ask before buying a QMS
Elsmar Forum Sponsor
Atul Khandekar

Atul Khandekar

Quite Involved in Discussions
#2
#2
Gage R&R is applied to the measurement system as a whole - parts, instrument, operators, environmental conditions etc etc... Gagr R&R tries to isolate the contribution of variation due to Appraiser (AV), that due to Equipment (EV) and the actual variation in the parts(PV). Total Variation(TV) has all these three components. The aim to ascertain if the instrument is suitable to measure the part/characteristic in question. It is many times called the gage capability study and the R&R is the Measurement Error.

From instrument calibration point of view, the measurement errors are classified as either Random & Systematic errors or Type A /Type B errors, the result is measurement uncertainty......I think I better leave this one for the experts on the forum.
-Atul.
 
You must log in or register to reply here.
Thread starter Similar threads Forum Replies Date
M Measurement Error - How to determine what is acceptable? Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 3
Marc Definition MPEE - Maximum Permissible Error for Length Measurement Definitions, Acronyms, Abbreviations and Interpretations Listed Alphabetically 0
B Measurement Error on pure Graphite Coating on Tubes - To Error or Not to Error Using Minitab Software 7
S How to define Permissible Error for Measurement and Test Equipment? Measurement Uncertainty (MU) 3
bobdoering Dr. Wheeler on "How Measurement Error Affects the Four Ways We Use Data" Measurement Uncertainty (MU) 0
P Measurement Error Requirements - 99% or 99.73% spread to represent the 'full' spread? Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
S Measurement Error When Measuring a Defect - Scratches Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 14
I Gage Error vs. Dimensional Tolerance - Accuracy needed for measurement equipment Measurement Uncertainty (MU) 10
M Maximum Permissible Error for Monitoring and Measurement Devices General Measurement Device and Calibration Topics 19
N Drawing tolerance vs. Measurement device General Measurement Device and Calibration Topics 4
Ron Rompen MSA on automated measurement system - Multiple Step Vision System Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 3
P Thermo-Hygrometer - Measurement of 10DegC @10%RH ISO 17025 related Discussions 4
hogheavenfarm GDT Flatness measurement question Inspection, Prints (Drawings), Testing, Sampling and Related Topics 10
K Software Validation for Measurement Tools used in Process Validation ISO 13485:2016 - Medical Device Quality Management Systems 2
K Best Measurement Systems Demos in California? General Measurement Device and Calibration Topics 1
K Process Mapping - Inputs/Outputs/Detail Activities/Control points/Measurement? Process Maps, Process Mapping and Turtle Diagrams 4
B IEC 60601-2-10 - Accuracy of Pulse Parameters - Required Measurement Uncertainty IEC 60601 - Medical Electrical Equipment Safety Standards Series 3
N Program or application for standard time measurement in industry from video surveillance? Human Factors and Ergonomics in Engineering 1
M Defining frequency of measurement tools callibration Calibration and Metrology Software and Hardware 3
T How to “validate/qualify” a new measurement equipment? Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 4
Bev D Verification and Validation of Measurement Systems Misc. Quality Assurance and Business Systems Related Topics 0
F How do you add accuracies for tools with different measurement devices? General Measurement Device and Calibration Topics 1
M Viable count Measurement ISO Standard Other Medical Device Related Standards 1
J Gauge R&R on a torque measurement Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 11
W Air Quality Measurement Hardware and Software General Measurement Device and Calibration Topics 11
O Dimension Measurement Tool Recommendation General Measurement Device and Calibration Topics 21
G Does pitch/increment/resolution of a ruled scale apply to measurement uncertainty as line item? Measurement Uncertainty (MU) 10
Marco Bernardi Plane measurement with a 3D touch machine like a CMM. Calibration and Metrology Software and Hardware 3
Marco Bernardi Diameters measurement with 3D touch machine like a CMM Calibration and Metrology Software and Hardware 4
R Uncertainty in measurement larger than tolerance Measurement Uncertainty (MU) 2
R Measurement Uncertainties Budget for Thermometer Measurement Uncertainty (MU) 6
O Performance Measurement ISO 9001: 2015 ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 2
O Monitoring performance - How do I determine performance measurement basis within my organization? Misc. Quality Assurance and Business Systems Related Topics 4
G What information to put on measurement Dimensional Results APQP and PPAP 7
D O Ring capability and measurement - What is the automotive 'norm' for capability studies on O Rings? General Measurement Device and Calibration Topics 3
F Electrical Metrology (Source/Generation and Measurement) General Measurement Device and Calibration Topics 1
G Gauge R&R on multiple dimensions using 3D measurement system Capability, Accuracy and Stability - Processes, Machines, etc. 6
F Measurement Audit and ILC for ISO 17025 Clause 7.7.2 - Comparison with results of other laboratories ISO 17025 related Discussions 0
Emran.mi Measurement system analysis - Can you help me about implementation MSA for CMM device Manufacturing and Related Processes 2
K ISO 17025:2017 clause 7.6.2 - Performing calibration of its own equipment shall evaluate the measurement uncertainty ISO 17025 related Discussions 6
Q How should I analyze measurement correlation between me and customer? Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 12
I Determining Calibration Tolerance of a Measurement Device General Measurement Device and Calibration Topics 2
Fernando Drumond Calibration and Control of Plastic Volumetric Measurement Instruments General Measurement Device and Calibration Topics 1
M Measurement Unit Rounding Nonconformity - Notified Body Audit Registrars and Notified Bodies 6
qualprod ISO 9001 Clause 9.1 - Monitoring measurement analysis and evaluation ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 6
Q Gage R&R for Instant Measurement Machine Manufacturing and Related Processes 6
N Justifications for not performing MSA (Measurement System Analysis) Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 6
T ISO 13485 8.2.5. Monitoring and measurement of quality management system processes ISO 13485:2016 - Medical Device Quality Management Systems 1
A Records required for ISO 9001 clause 7.1.5.1 - Fitness for purpose of the monitoring and measurement resources ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 10
Ron Rompen Measurement Method Challenge - Measure feature #91 Inspection, Prints (Drawings), Testing, Sampling and Related Topics 9

Similar threads

Top Bottom