Abstract: A flow meter for a pulsed fluid stream, includes a flow body having an inlet and an outlet and defining a channel for the flow of the fluid stream in a direction from the inlet to the outlet. A float structure is disposed in the channel, having a ferromagnetic body. First, second and third coils surrounding first, second and third separated portions of the float body. The second coil is configured as a drive coil for connection to an AC signal generator and situated between the first and third coils along the float body. The first and third coils generate induced voltage signals in response to the position of the float in the channel. An electronics module is connected to the first, second and third coils, including the AC signal generator and an electronic circuit for measuring the position of the float structure in the channel.

Abstract: The invention is generally a system and process for detecting phosphonate. The system and process detect and monitor phosphonate using optical, electronics and analytical software technology in a side stream to measure the level of phosphonate in the stream and then calculate the amount of the proper chemicals to inject into a cooling tower or boiler to prevent scale, rust and corrosion.