One of the goals of the signal conditioning module is the elimination of the phase shift that differs from the 90 degrees. For the verification of the design effectiveness the precision phase shift measurement method on the SPICE level is needed. Our second goal was to measure the time-dependent ultra small phase shift in the circuit where the amplitude, frequency and DC offset were also varying with the time. The measurement algorithm should be implemented with the SPICE scripting language.
COBISS.SI-ID: 7579988
This paper describes a high precision linear optical scanner, combining an averaged optical sensors array with an appropriate 10 µm graduated scales on measurement – fix plate and Vernier sliced parallel scale on a reading plate, where the total distortion of the generated quadrature sinusoidal signals below -60 dB was achieved by distributing and mismatching optical edges over a number of sine wave periods within a number of Vernier scaled periods.
COBISS.SI-ID: 7187028