1,721,032 research outputs found

    A novel low-coherence sensor for industrial applications based on a self-mixing super-luminescent diode

    No full text
    A novel low-coherence sensor for industrial applications based on a self-mixing super-luminescent diod

    Absolute distance meter based on a frequency-modulated laser diode

    No full text
    This article describes a distance measuring instrument based on a frequency-modulation continuouswave interferometer implemented in a compact setup suitable for industrial applications. Theprototype uses a visible laser diode that is frequency-modulated with a triangular wave form.Measurements carried out with a cooperative target show a measuring range from 130 to 300 mmwith a relative accuracy of 1200 ppm

    Low-coherence interferometry using a self-mixing superluminescent diode

    No full text
    A novel low-coherence interferometer (LCI) using a self-mixing superluminescent diode is described. The optical scheme proposed uses the photodiode on the back-face of a commercial super luminescent diode to detect the interference signal from a Fizeau interferometer. Interesting characteristics are low cost and small size, high stability and resolution. The proposed interferometer is expected to have several industrial as well as medical application

    A Novel Optical Stylus Probe for the Measurement of Surface Roughness and Waviness

    No full text
    A Novel Optical Stylus Probe for the Measurement of Surface Roughness and Wavines
    corecore