Device for detection of extraneous substances through a wall and

Device for determining the displacement of a tooth between two d

Device for interferential spectrometry with selective modulation

Device for measurement of optical wavelengths

Device for measurement of the spectral width of nearly monochrom

Device for measuring by holography the deviations of light rays

Device for measuring light emitted by microscopically small...

Device for measuring optical frequency modulation characteristic

Device for measuring small distances

Device for measuring the concentration of airborne fibers

Device for measuring the light scattering of biological cells in

Device for measuring the optical range of optical and electronic

Device for optical measurement in a medium

Device for the non-destructive inspection of a part by means of

Device which measures the mutual coherence function of a laser b

Differential displacement measuring interferometer

Differential doppler technique for on-axis backscatter measureme

Differential fiber optic sensor and method

Differential holographic interferometry

Differential holographic method