Metrology Research Institute

Metrology Research Institute focuses on optical radiation measurements and related activities. We do not forecast the weather!
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Light is everywhere around us in the form of sunlight, artificial lighting and signaling. Most electrical equipment use either visible or infrared radiation for signaling, displays, sensing, data read-out, or digital communication. Colour is one of the most significant properties in consumer products.

Metrology research of Optical Radiation Measurements is divided into three branches:

  • Radiometry deals with characteristics of light sources and detectors
  • Photometry studies light as humans see it, and
  • Spectrophotometry investigates optical components as well as the optical properties of materials.

Some of the facilities, developed in the laboratory, are at world-leading level, when comparing accuracy, compactness, and operating costs. The group's research concentrates on electronics, modern optics and optical radiation measurements.

Metrology Research Institute is a joint laboratory between Aalto University and MIKES. It is involved in many national and international projects. Most of the research in the laboratory is currently carried out within the frameworks of EURAMET EMRP and EMPIR.

The Institute is the national standards laboratory for optical quantities in Finland, maintaining national standards of optical quantities and carrying out calibrations at the highest level.

The research group is led by Professor Erkki Ikonen. For other staff members, see Aalto People - Signal Processing and Acoustics (note that not all profiles are public). See our detailed project descriptions for information about specific contact persons for each activity.

Research areas

Find out more about the key research areas of the Metrology Research Institute. The pages contain information about our latest projects. For information about our older projects see our Annual Reports Database.

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Photometry

Photometry is the measurement of visible light as perceived by humans. Our current focus is on increasing the accuracy of the energy efficiency measurements of novel light sources, such as LEDs and OLEDs.

Department of Signal Processing and Acoustics
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Radiometry

Radiometry deals with techniques for measuring electromagnetic radiation, in the form of ultraviolet radiation, visible light, and infrared radiation.

Department of Signal Processing and Acoustics
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Spectrophotometry

Spectrophotometry focuses on measuring the amount of light that a sample or an object absorbs or reflects as a function of wavelength using an instrument known as a spectrophotometer.

Department of Signal Processing and Acoustics
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Electrical instrumentation

Off-the-shelf measurement equipment are not always available, and dedicated measurement devices are often built at Metrology Research Institute.

Department of Signal Processing and Acoustics

Group members

Erkki Ikonen

Erkki Ikonen

Department of Signal Processing and Acoustics
Professor

Farshid Manoocheri

Department of Signal Processing and Acoustics
Staff Scientist

Toni Laurila

Department of Signal Processing and Acoustics
Research Fellow

Petri Kärhä

Department of Signal Processing and Acoustics
Senior University Lecturer

Alexander Kokka

Department of Signal Processing and Acoustics
Postdoctoral Researcher

Janne Askola

Department of Signal Processing and Acoustics
Doctoral Candidate

Dmitri Lanevski

Department of Signal Processing and Acoustics
Doctoral Candidate

Kinza Maham

Department of Signal Processing and Acoustics
Doctoral Candidate

Sucheta Sharma

Department of Signal Processing and Acoustics
Doctoral Candidate

Mikhail Korpusenko

Department of Signal Processing and Acoustics
Doctoral Candidate

Latest publications

Department of Signal Processing and Acoustics, Metrology Research Institute

Flat-field calibration method for hyperspectral frame cameras

Publishing year: 2019 Metrologia
Metrology Research Institute, Department of Signal Processing and Acoustics

Validation of the fisheye camera method for spatial non-uniformity corrections in luminous flux measurements with integrating spheres

Publishing year: 2019 Metrologia
Department of Signal Processing and Acoustics, Metrology Research Institute

Spatial and Spectral Corrections for Integrating Sphere Photometry and Radiometry

Publishing year: 2019
Department of Signal Processing and Acoustics, Metrology Research Institute

Accelerated ageing of organic LED panels using ultraviolet exposure

Publishing year: 2018 Lighting Research and Technology
Department of Signal Processing and Acoustics, Metrology Research Institute

Development of white LED illuminants for colorimetry and recommendation of white LED reference spectrum for photometry

Publishing year: 2018 Metrologia
Department of Signal Processing and Acoustics, Metrology Research Institute

Uncertainty analysis of total ozone derived from direct solar irradiance spectra in the presence of unknown spectral deviations

Publishing year: 2018 Atmospheric Measurement Techniques
Department of Signal Processing and Acoustics, Metrology Research Institute

Relationships between junction temperature, electroluminescence spectrum and ageing of light-emitting diodes

Publishing year: 2018 Metrologia
Department of Signal Processing and Acoustics, Metrology Research Institute

LED based reference for wavelength and relative intensity

Publishing year: 2018 Journal of Physics: Conference Series
Department of Signal Processing and Acoustics, Metrology Research Institute

Key comparison CCPR-K1.a as an interlaboratory comparison of correlated color temperature

Publishing year: 2018 Journal of Physics: Conference Series
Department of Signal Processing and Acoustics, Metrology Research Institute

Liquid nitrogen cryostat for predictable quantum efficient detectors

Publishing year: 2018 Journal of Physics: Conference Series
More information on our research in the Research database.
Research database

More information about us

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