WASTE WATER FLOW QUANTIFYING APPARATUS, METHOD AND COMPUTER PROGRAM

摘要

Waste water flow quantifying apparatus, a method and a computer program is provided. The waste water flow quantifying apparatus comprises microwave transceiver circuitry configured to transmit a first microwave signal into a closed conduit and configured to receive a first superposition microwave signal formed from a combination of the first microwave signal and a reflection, from within the closed conduit, of the first microwave signal. The microwave transceiver circuitry is configured to transmit a second microwave signal into the closed conduit. The second microwave signal has a different frequency from the first microwave signal or is out of phase with the first microwave signal. The microwave transceiver circuitry is configured to receive a second superposition microwave signal formed from a combination of the second microwave signal and a reflection, from within the closed conduit, of the second microwave signal. The microwave transceiver circuitry is configured to transmit a third microwave signal into the closed conduit. The third microwave signal has a different frequency from the first microwave signal or is out of phase with the first microwave signal. The third microwave signal has a different frequency from the second microwave signal or is out of phase with the second microwave signal. The microwave transceiver circuitry is configured to receive a third superposition microwave signal formed from a combination of the third microwave signal and a reflection, from within the closed conduit, of the third microwave signal. The waste water flow quantifying apparatus further comprises processing circuitry configured to quantify waste water flow through the closed conduit using a reading of the first superposition microwave signal, a reading of the second superposition microwave signal and a reading of the third superposition microwave signal provided by the microwave transceiver circuitry.