A method for stabilizing the output frequency of a voltage-controlled oscillator as well as oscillator - and sensor device which operates according to the method

摘要

method and oszillatoreinrichtung for stabilization of the output frequency fv of a spannungsgesteuerten oscillator.at the entrance to a voltage above the output signal in the uv and proportional and linear with the input voltage uv with frequency fv in the form of rectangular pulses is given and the following properties: (a) generating a constant - frequenten referenzsignals with frequ efficiency of fr, of the same order of magnitude as the frequency of the ausgangssignals, i.e.it was $a tas (fr) / 2 $a (b) parts of the output frequency by the factor n tas and produce a further rechtecksignalfolge b with the frequency fw = fv / n, c) maintain the sequence b to a torschalter together with the referenzsignal and generating a signal sequence (c), the rechteckimpulse a period tr = 1 / fr, and when the break time tp iswith the context: $a tr + tp = 1 / (fp) $a (d) integration of the signal sequence (c) producing a regelspannung ur and regulation of the oscillator with the aid of the regelspannung ur.