Patent ID: 6700530
Filing Date: 2004-03-02
Classification: G01S

Abstract:
A timing circuit for generation of trigger signals for a radar level gauging system comprising:a pulse-width modulator, having an input connected to a pulse-repetition-frequency generating oscillator, a monostable multivibrator, having an input connected to an output of the pulse-width modulator, first and second integrators connected to an output of the pulse-width modulator and the monostable multivibrator respectively, a voltage summation element, connected to an output of the first and second integrators respectively and at least one control signal input, a servo regulator providing a control loop between an output of the voltage summation element and a control port of the pulse-width modulator, wherein a reference clock output is provided at the output of the monostable multivibrator and a second clock output is provided at the output of the pulse-width modulator.