This work concentrates on construction and tuning of Michelson Fourier transform spectrometer for optical emission spectroscopy in UV/VIS spectral range. Mirror movement utilizes a stepper linear stage with both servo motor and piezo actuator. Due to this, we can scan across reasonable distances (up to 20 mm) with very small (10 nm) and precise steps. We use the stepping ability for mirror motion reference instead of traditionally used HeNe laser reference. By the time this thesis was being written, our apparatus went through numerous improvements, but it still suffers from a variety of errors, which degrade the resulting spectra. In this thesis, we thoroughly describe these errors, analyze them and suggest future actions to prevent them. The most significant problem is presence of strong 100 Hz noise in raw signal, the cause of which we could not determine for a long time. Now we have a hypothesis backed by simulation, that the cause can be the absence of frequency stabilization of our HeNe laser, which we have used for tuning measurements. Another problem is posed by tiny mechanical shocks caused by servo motor steps, which can cause slight misalignments in optomechanics, and thus introduce discontinuities into the measured interferogram.