MacroScale Conference 2025

We are pleased to announce that the 4th MacroScale conference will take place at the Instituto Nacional de Tecnología Industrial (INTI), Argentina from 4 to 6 November 2025. It will be jointly organized by the National Metrology Institute of Argentina (INTI) and the Physikalisch-Technische Bundesanstalt (PTB) Germany. In the tradition of the conference series “Recent Developments in Traceable Dimensional Measurements” and following the MacroScale conferences held in 2011, 2014 and 2017, the MacroScale 2025 conference intends to provide a forum for latest reports on current trends and developments in the field of traceable dimensional measurements.

The MacroScale conference is dedicated to high-accuracy length measurements in the range from a few 100 µm to km and their underlying methods for tracing lengths back to the definition of the meter in the International System of Units (SI). Reports on progress in the development or application of principles, methods, algorithms, components, instruments and measurement procedures and the determination of the associated measurement uncertainties are welcome, as well as reports on regional or international measurement comparisons or results of international projects in this field.

Please submit abstracts by 13 June 2025 electronically by uploading it on the conference webpage  https://conferences.ptb.de/e/macroScale.  The abstract may contain images or diagrams in colour but may not exceed two pages. Accepted abstracts will be made electronically available on the website together with the conference program a few weeks before the conference.

Full papers will be published in a special issue of the scientific journal Measurement Science and Technology. These manuscripts will be peer reviewed by independent referees. Alternatively, full papers can be published on the MacroScale website which will be maintained on a long term, including DOI assignment.

• Interferometry (e.g. absolute range finding interferometry, imaging interferometry, displacement interferometry)
• Calibration of length standards (e.g. gauge blocks, line scales)
• Coordinate metrology (including multi-sensor systems, computed tomography, µCMMs and large scale CMMs)
• Vision based dimensional metrology
• Form measurements
• Angle metrology
• Surface texture measurements
• Tactile, optical and electronic sensors for displacement and structure localization
• Temperature and force measurements related to dimensional measurements
• Measurement of quantities that are required to determine the uncertainties of length measurements and methods for the evaluation of the measurement uncertainty

The early registration fee will be 350 € (early bird rate) and will include beverages, lunch, and the conference dinner. The fee will increase by 50 € one month before the conference. The fee does not include the accommodation and travel.

Foreign visitors entering Argentina must be in possession of a valid ID and passport. Delegates from countries requiring visas should apply to the Argentina consular offices or diplomatic missions in their home countries. Contributors requesting a letter of invitation to include with their visa application are required to register online for the conference first and then contact the organiser via email.

The conference will be jointly organized by INTI and PTB 

Contacts:      Karina Bastida, kbastida@inti.gob.ar

                     René Schödel, rene.schoedel@ptb.de