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Karl Henrik Haugholt

Seniorforsker

Karl Henrik Haugholt

Seniorforsker

Karl Henrik Haugholt
Telefon: +47 930 03 539
Avdeling: Smart Sensor Systems
Kontorsted: Oslo

Publikasjoner og ansvarsområder

Publikasjoner

Publikasjon

A Real-Time 3D Range Image Sensor based on a novel Tip-Tilt-Piston Micro-mirror and Dual Frequency Phase Shifting

https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1255450

Structured light is a robust and accurate method for 3D range imaging in which one or more light patterns are projected onto the scene and observed with an off-axis camera. Commercial sensors typically utilize DMD- or LCD-based LED projectors, which produce good results but have a number of drawback...

Forfattere Skotheim Øystein Schumann-Olsen Henrik Thorstensen Jostein Bruun Kim Anna N. Lacolle Matthieu Jean P Haugholt Karl Henrik Bakke Thor
År 2015
Type Tidsskriftspublikasjon
Publikasjon

Low-cost resonant cavity Raman gas probe for multi-gas detection

https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1187502

Raman based gas sensing can be attractive in several industrial applications, due to its multi-gas sensing capabilities and its ability to detect O2 and N2. In this article, we have built a Raman gas probe, based on low-cost components, which has shown an estimated detection limit of 0.5 % for 30 se...

Publikasjon

Low cost laserless FTIR spectrometer on the farm for real-time nitrous oxide soil emission measurements

https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1002744

A low-cost Fourier transform infrared (FTIR) instrument was developed where the traditional He–Ne reference laser was replaced by a low-cost linear encoder. An RMS sampling error of less than 20 nm was achieved by oversampling both the interferogram and the encoder signal and then resampling the int...

År 2013
Type Tidsskriftspublikasjon
Publikasjon

Low Cost “Laserless” FTIR Spectrometer with Resolution Better Than 0.5 cm-1

https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1273092

Abstract: We have designed a FTIR instrument where the traditional He-Ne reference laser is replaced by a low-cost linear encoder. We achieve an RMS sampling error of less than 50nm by oversampling both the interferogram and the encoder signal and then resampling the interferogram using a correction...

År 2011
Type Konferansebidrag og faglig presentasjon
Publikasjon

An interferometric test station for massive parallel inspection of MEMS and MOEMS

https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1271794

The paper presents the optical, mechanical, and electro-optical design of an interferometric inspection system for massive parallel inspection of Micro(Opto)ElectroMechanicalSystems (M(O)EMS). The basic idea is to adapt a micro-optical probing wafer to the M(O)EMS wafer under test. The probing wafer...

År 2009
Type Tidsskriftspublikasjon
Publikasjon

Design of a micro-optical low coherent interferometer array for the characterisation of MEMS and MOEMS

https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1271789

The EU-project SMARTIEHS (SMART InspEction system for High Speed and multi-functional testing of MEMS and MOEMS) develops a new inspection concept for MEMS and MOEMS (M(O)EMS) testing on the wafer level. The inspection systems on market today are based on a serial approach inspecting one M(O)EMS str...

Forfattere Gastinger Kay Haugholt Karl Henrik Røyset Arne Karstein
År 2009
Type Del av bok/rapport
Publikasjon

Optical, mechanical and electro-optical design of an interferometric test station for massive parallel inspection of MEMS and MOEMS

https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1271787

The paper presents the optical, mechanical, and electro-optical design of an interferometric inspection system for massive parallel inspection of MicroElectroMechanicalSystems (MEMS) and MicroOptoElectroMechanicalSystems (MOEMS). The basic idea is to adapt a micro-optical probing wafer to the M(O)EM...

År 2009
Type Del av bok/rapport
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