| 摘要 |
Waste water assessment apparatus comprises transceiver circuitry 14 configured to transmit a microwave signal 50 and to receive one or more reflections of the microwave signal 70, 80, and processing circuitry configured to process the one or more reflections of the microwave signal to determine characteristics of waste water 85 flowing through a conduit 83. The microwave signals may be ultra wide band (UWB) and amplitude, phase, polarisation, frequency and scattering of the signals may be determined and related to water characteristics. A method of using the apparatus for detecting impurities in the water is disclosed. |
