FREQUENCY-MODULATED CONTINUOUS-WAVE RADAR LEVEL METER FOR MEASURING MATERIAL LEVEL IN CONTAINER

摘要

A frequency-modulated continuous-wave radar level meter for measuring a material level in a container, belonging to the technical field of radar level meters. Said radar level meter comprises: a local oscillation module (3), configured to generate a local oscillation signal; a transmission path (200), configured to receive the local oscillation signal generated by the local oscillation module (3) and form an electromagnetic wave so as to transmit same to a target object; a reception path (300), configured to receive the electromagnetic wave reflected back by the target object and form a reflection signal; a frequency mixer (5), configured to receive the local oscillation signal generated by the local oscillation module (3), receive the reflection signal formed by the reception path (300), and perform frequency mixing to form a frequency mixing signal for determining a material level distance. This invention helps solve the problem of a near-end measurement blind zone of a frequency-modulated continuous-wave radar level meter, thereby improving the measurement reliability of the frequency-modulated continuous-wave radar level meter.