Surface texture and form of products are important features to be examined and numerically characterised as parameters for engineering and scientific purposes. Form and surface measurement devices with contact probes and stylus are used to characterise such surfaces. Additionally, new generation Coordinate Measuring Machines (CMMs) can measure dimension and form simultaneously in scanning mode and also may employ surface roughness testers to perform measurements when the part is on the CMM machine. Use of probes for form measurements in scanning mode with a fast scanning speed might be problematic due to required high data acquisition rates, therefore the dynamic performance of the probe including the electronics of the instrument should be well calibrated. For the surface roughness devices, there is a need for new traceable standards due to a recent increase in the required measurement ranges (e.g. 1000 μm). Although there are documentation and methods for calibration of contact stylus instruments (ISO 12179; ISO 25178-701:2010 and DKD-R 4-2), there is no documentation for alternative routes or detailed investigations for calibration of reference stylus instruments used for calibration of reference standards of secondary level labs. The project, "Probe Trace"supported by the European Metrology Programme (EMPIR) has been started to respond to the above given demands. It aims to improve the scientific knowledge, instruments, methods and research capability in metrology for contact measurement probes and stylus instruments and enable calibration labs to develop new capabilities for selfprovision of traceability to the SI unit of length, the metre. Update on the project results will be given in the paper including, investigation of new traceability routes with displacement generators, software tools for use of spheres for calibration of the devices and noise reductions, and calibration of groove standards using various state of the art devices.
Traceability issues for contact probe and stylus instrument measurements / Yandayan, Tanfer; Aksulu, Murat; Picotto Gian, Bartolo; Astrua, Milena; Muñoz, Rafael; Arce Aelio, A.; Oraby, Ezzat; Trych-Wildner, Anna; Slusarski, Lukasz; Sosinowski, Piotr; Baršic, Gorana; Šimunovic, Vedran; Tamakjarska, Denita; Saraiva, Fernanda; Zelenika, Slobodan; Al-Qahtani, Faisal. - (2023).
Traceability issues for contact probe and stylus instrument measurements
Astrua Milena;
2023
Abstract
Surface texture and form of products are important features to be examined and numerically characterised as parameters for engineering and scientific purposes. Form and surface measurement devices with contact probes and stylus are used to characterise such surfaces. Additionally, new generation Coordinate Measuring Machines (CMMs) can measure dimension and form simultaneously in scanning mode and also may employ surface roughness testers to perform measurements when the part is on the CMM machine. Use of probes for form measurements in scanning mode with a fast scanning speed might be problematic due to required high data acquisition rates, therefore the dynamic performance of the probe including the electronics of the instrument should be well calibrated. For the surface roughness devices, there is a need for new traceable standards due to a recent increase in the required measurement ranges (e.g. 1000 μm). Although there are documentation and methods for calibration of contact stylus instruments (ISO 12179; ISO 25178-701:2010 and DKD-R 4-2), there is no documentation for alternative routes or detailed investigations for calibration of reference stylus instruments used for calibration of reference standards of secondary level labs. The project, "Probe Trace"supported by the European Metrology Programme (EMPIR) has been started to respond to the above given demands. It aims to improve the scientific knowledge, instruments, methods and research capability in metrology for contact measurement probes and stylus instruments and enable calibration labs to develop new capabilities for selfprovision of traceability to the SI unit of length, the metre. Update on the project results will be given in the paper including, investigation of new traceability routes with displacement generators, software tools for use of spheres for calibration of the devices and noise reductions, and calibration of groove standards using various state of the art devices.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
