Overview:
A low-cost reflectometer for non-destructive is an instrument capable of measuring the phase and magnitude of the reflection coefficient of an unknown load. When used for non-destructive testing, an open-ended coaxial cable is inserted in a liquid or pressed against a material. Through additional analysis, the reflection coefficient from the material can be related to physical properties of the material. The reflectometer consists of a six-port passive microwave circuit integrated with a PC workstation. The PC workstation samples four output voltages and calculates the phase and magnitude of the reflection coefficient using a specified algorithm.
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