Since the earliest developments 150 years ago, advances in light sources, optics, and data processing have firmly established interferometry as an indispensable tool for measurement of distance, displacement, and angle [1]. While it can be sensibly argued that ever-increasing demands on precision have driven advances in interferometric positioning, here we follow the path to the current state of the art with a different driving force in mind: the presence of air in the beam paths, and the innovations required to deal with refractive index changes and air turbulence.
measurement system.
Click HERE to read the full paper.
To speak with one of our Sales & Applications Engineers please call 01582 764334 or click here to email.
Lambda Photometrics is the leading UK Distributor of Characterisation, Measurement and Analysis solutions with particular expertise in Instrumentation, Laser & Light based products, Optics, Electro-optic Testing, Spectroscopy, Machine Vision, Optical Metrology, Fibre Optics, Microscopy and Anti-vibration tables & custom solutions
-
ZYGO ZMI™ Lasers
ZYGO ZMI™ lasers provide highly stabilised, two-frequency output which provides a firm foundation for high-precision position metrology. These lasers are based on robust Helium Neon technology that has high reliability and is used as a standard definition of the meter.
-
ZYGO Measurement Electronics
ZYGO ZMI™ measurement electronics calculate displacement using optical signals from the interferometers driven by a ZMI™ laser source.