Our journal ‘Metrology’ has been up and running for a few years now, with interesting ground-breaking publications covering the wide field that concept of ‘metrology’ encompasses [...]

The idea of remote laboratories is reviewed, and the potential of the approach on selected examples with special focus on the field of optical metrology is illustrated. The concept of remote metrology is extended beyond the simple exchange of data between distant laboratories and the remote access to experimental facilities embedded in modern educational concepts. We describe an architecture th...

Considerable research attention has been given to close-range videometric systems for vision-based, three-dimensional object measurement over recent years. These systems have to demonstrate high speed, high accuracy capability and high flexibility to compete as a three-dimensional coordinate measurement tool. Especially in industries where instant feedback is required, such as production line o...

Over the past 40 years, a number of discoveries in quantum physics have completely transformed our vision of fundamental metrology. This revolution starts with the frequency stabilization of lasers using saturation spectroscopy and the redefinition of the metre by fixing the velocity of light c. Today, the trend is to redefine all SI base units from fundamental constants and we discuss strategi...

1 Gdansk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics, ul. G. Narutowicza 11/12, 80-233 Gdansk, Poland, phone 48 58 347-14-87, fax 48 58 347-13-57, e-mail [email protected] 2 Gdansk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Metrology and Optoelectronics,...

This paper provides a very brief overview of the capabilities and recent accomplishments of many of the low frequency electrical metrology projects at the National Institute of Standards and Technology. The projects presented here include the 5 main electrical measurement services projects (dc voltage, resistance, impedance, ac-dc difference, and electric power) and some electrical metrology re...

For optical metrology by transverse translation diversity phase retrieval (or ptychography), information theoretic limits on the ability to estimate subaperture translation, essential for accurate metrology, are assessed as a function of the optical aberrations of the system being measured. Special attention is given to the case that an unknown linear phase aberration, or equivalent detector or...

− A growing number of measurements in commercial and industrial sector need to refer to the traceability to the national (and international) standards. Instrument and reference standards calibration is resource and time consuming. Since many of the available digital instruments provide some communication interfaces and the internet-enabled metrology is rapidly developing in the recent years, it...

Metrology is the science and engineering of measurement. It has played a crucial role in the industrial revolution at the milli-inch length scale and in the semiconductor revolution at the micrometre length scale. It is often proclaimed that we are standing at the threshold of another industrial revolution, brought by the advent and maturing of nanotechnology. We argue that for nanotechnology t...

 The quality inspection of products poses a challenge towards existing production metrology techniques in terms of accuracy and speed, especially when it comes to inline or in-process measurements. In this terms, optical metrology proves its capabilities, in particular for sensible and fragile work pieces. For the inspection inside small spaces and cavities or for complex geometries, many opti...