Measuring device for measuring the carrier frequency of...

Details Measuring device for measuring the carrier frequency of... Measuring device for measuring the carrier frequency of...

G - Physics

01

R

324/37

G01R 23/02 (2006.01) G01R 23/14 (2006.01) G01S 7/292 (2006.01) G01S 13/24 (2006.01)

Patent

CA 1183208

ABSTRACT OF THE DISCLOSURE A device is disclosed for measuring the frequency of a pulsed carrier signal in which the carrier frequency is situated within the frequency range and to give a continuous signal whose frequency is equal to the measured carrier frequency. A frequency discriminator gives an analog voltage via a track-and-hold circuit and a DC-amplifier to one input of a comparator whose second input receives the analog voltage from the discriminator. The difference value from the comparator is supplied to a voltage controlled oscillator. This is via a directional coupler and a controllable switch connected to the frequency discriminator which alternatively receives the input signal to the device and the output signal from the voltage controlled oscillator.

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