Method and apparatus for measuring the distance to an object
作者： Fritz Bekkadal , Tor Schaug-Pettersen
DOI:
关键词: Reflection coefficient 、 Fourier transform 、 Function (mathematics) 、 Mathematics 、 Surface (mathematics) 、 Control unit 、 Antenna (radio) 、 Optics 、 Communication channel 、 Signal
摘要: Method and device for measuring the distance to an object, particularly surface (17) of a liquid (16) in container (15). An antenna (11) is arranged from aimed against (17), being connected unit (12), channel (13) control (14). A microwave signal with predetermined frequency generated which part utilized as reference signal, while further input transmitted (17). From reflected received by supplied (12) function reflection coefficient formed. This adapted current condition. fourier transformation set values this at certain frequencies made, calculated.
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