Traceability of laser based x-y measuring machine

greif

Involved In Discussions
#1
Given that a laser interferometer based (x-y linear distance)measuring machine has a fundamental standard built into it, some would say that the machine is inherently traceable. Since there are many ways for inaccuracies to creep in (laser not parallel to guideways, straightness, etc.) it would seem that to be traceable the machine must be tested by measuring stage travel in the measurement plane by a calibrated scale or calibration laser.

Comments?
Alternatives?
 
Elsmar Forum Sponsor

Ninja

Looking for Reality
Trusted Information Resource
#2
fundamental standard built in...what is that?
inherently traceable would be quite a feat...

Being that there is motion involved that directly affects the result (and even if it didn't), I would be looking for a measurement standard and claim traceability through that.

JMO
 

Ninja

Looking for Reality
Trusted Information Resource
#4
For the wavelength of that type of light...sure.
But you are also mentioning stage travel and alignment.

The letter can be evidence to support that the light source does not need calibration, and that interferometry using it need not be.

Is that the only factor in your length measurement?
If not, as you mention, I would default to a comparison standard which is traceable.

Again, JMO
 

howste

Thaumaturge
Super Moderator
#6
Given that a laser interferometer based (x-y linear distance)measuring machine has a fundamental standard built into it, some would say that the machine is inherently traceable. Since there are many ways for inaccuracies to creep in (laser not parallel to guideways, straightness, etc.) it would seem that to be traceable the machine must be tested by measuring stage travel in the measurement plane by a calibrated scale or calibration laser.

Comments?
Alternatives?
I don't claim to be an expert on this type of equipment, but here's what I've seen used for this: An artifact (standard part) is measured by a calibrated CMM at certain points, and then the same artifact is measured with the laser interferometer. The difference between the two measurement methods is evaluated.
 
Thread starter Similar threads Forum Replies Date
G Laser Wavelength Traceability for Laser Interferometers General Measurement Device and Calibration Topics 4
S NIST Traceability - Calibrating a grid w/ laser interferonmeters and microscopes General Measurement Device and Calibration Topics 4
T ISO 9001 8.5.2. - Identification and traceability to Identify Outputs - Services ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 2
S IATF 16949 - Partial traceability of Aftermarket products IATF 16949 - Automotive Quality Systems Standard 5
R DHR question: Traceability of components ISO 13485:2016 - Medical Device Quality Management Systems 2
A Does AS9100 require traceability to operators performing the work? AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 4
J Traceability of component parts - Bolts, screws and washers ISO 13485:2016 - Medical Device Quality Management Systems 3
R Traceability on Unmarked Parts - AS9100 requirements AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 7
T Non conformance product identification and traceability 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 4
B Traceability of Thermoelement Batches ISO 17025 related Discussions 7
G ISO 17025:2017 Uninterrupted chain of traceability for test laboratories ISO 17025 related Discussions 6
J What is the minimum standard for automotive component traceability? Manufacturing and Related Processes 2
A Validation of Calibration Methods and Traceability - ISO 17025 ISO 17025 related Discussions 3
shimonv Design input/output traceability for mechanical parts ISO 13485:2016 - Medical Device Quality Management Systems 13
K Identification and Traceability with an ERP system - Barcode Labels? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 3
B PED 2014/68/EU - Is this Traceability audit finding correct? Other ISO and International Standards and European Regulations 4
N FDA Traceability Requirements - Component lots ISO 13485:2016 - Medical Device Quality Management Systems 2
Stefan Mundt ISO 9001:2015 - 8.5.2 Identification and Traceability Manufacturing and Related Processes 14
S How to maintain a design traceability matrix ISO 13485:2016 - Medical Device Quality Management Systems 2
N Requirements for the identification and traceability of demo product for sales force US Food and Drug Administration (FDA) 1
MrTetris Traceability in Medical Sofware Development Process IEC 62304 - Medical Device Software Life Cycle Processes 3
M Medical Device Traceability ISO 13485:2016 - Medical Device Quality Management Systems 9
G Where to list chain of traceability? ISO 17025 related Discussions 6
A AS5553B Counterfeit Prevention - Traceability requirements AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 10
T In house Calibration? Measurement equipment traceability requirements - ISO9001 General Measurement Device and Calibration Topics 12
R ISO 9001:2015 Clause 7.1.5.2 - Is Measurement traceability applicable? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 1
M Medical Device Traceability Matrix - Examples EU Medical Device Regulations 7
DeeDeeM IATF16949, clause 8.5.2.1 Identification and traceability-supplemental IATF 16949 - Automotive Quality Systems Standard 1
DeeDeeM IATF 16949 - Clause 8.5.2 Identification and Traceability IATF 16949 - Automotive Quality Systems Standard 7
D IATF 16949 - 8.5.2.1 Traceability Plan - Does anyone have an example? IATF 16949 - Automotive Quality Systems Standard 4
A UDI - Traceability of Products Other US Medical Device Regulations 1
B AS9100 Rev D - Traceability of Consumables AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 4
J Customer Identification and Traceability in Manufacturing Plans Manufacturing and Related Processes 5
S Traceability and the initiation of GMP Activities 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 6
N Calibration Traceability - Fluke 753 dpc with thermocouple Calibrated by Fluke ISO 17025 related Discussions 4
T Policy or Good Guidance for a Traceability Decision Tree (Serial and Batch Numbers) Misc. Quality Assurance and Business Systems Related Topics 4
J How to understand IATF 16949 Clause 8.5.2.1 - Traceability IATF 16949 - Automotive Quality Systems Standard 5
A Aluminum Die Casting Product Traceability Manufacturing and Related Processes 10
G Traceability - Checklist from NIST General Measurement Device and Calibration Topics 4
Raffy ISO 13485 NIST Traceability requirements for calibration of test equipment ISO 13485:2016 - Medical Device Quality Management Systems 3
A Power Traceability certificate for values for voltage, current and phase General Measurement Device and Calibration Topics 1
Q Allowed no manuals, technical instructions traceability in products ISO 9001? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 7
A Is NIST traceability required if a Refractometer calibration is done in-house? Calibration Frequency (Interval) 6
M Component Lot Number Traceability - Class I reusable and "resposable" Medical Devices ISO 13485:2016 - Medical Device Quality Management Systems 10
B What is the FDA guidance regarding selling replacement parts and traceability? 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 2
J Individual part traceability - ink/paint sprayer? IATF 16949 - Automotive Quality Systems Standard 4
A Active Implantable Medical Devices - Legal Traceability Requirements ISO 13485:2016 - Medical Device Quality Management Systems 7
M Establishing traceability from calibrated glassware to non calibrated ones General Measurement Device and Calibration Topics 5
M Traceability of Tissue Samples US Food and Drug Administration (FDA) 1
R Drilling Service Identification and Traceability Requirements Quality Manager and Management Related Issues 4

Similar threads

Top Bottom