Patent ID: 7710125
Filing Date: 2010-05-04
Classification: G01F,G01S

Abstract:
1. A microwave module for an independent reference pulse generation for a fill-level measuring device, comprising: an echo signal unit providing an echo signal; a reference-pulse generating unit generating a reference pulse, the reference-pulse generating unit including a first sampling mixer, the first sampling mixer converting a reference signal to the reference pulse in the form of a second intermediate-frequency signal; a sampling pulse generator generating a sampling pulse; a second sampling mixer situated in the echo signal unit, the second sampling mixer converting a receiving signal and the sampling pulse to the echo signal in the form of a first intermediate-frequency signal; an intermediate-frequency amplifier; and a changeover switch transmitting the first intermediate-frequency signal and the second intermediate-frequency signal to the intermediate-frequency amplifier, wherein the reference pulse and the echo signal are signals that are separate from each other.