Device for measuring quantity of electric charges on electrified fluid
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorSatoru Kamoto
Life of this patent
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Abstract
An electrified fluid flows through a main pipe and its bypass line including a conducting pipe insulated from the remaining pipes and the main pipe. While the electrified fluid flows through the insulating pipe the latter acquires all electric charges which is, in turn, measured, as a current, by an ammeter connected between the insulated pipe and ground. A flow meter is disposed in the bypass line on the outgoing side of the insulated pipe and measures a flow rate. An electric charge density is calculated from the measured current and flow rate.
Claims8
A device for measuring the quantity of electric charge carried by an electrically insulating fluid flowing in a main pipe, comprising:
- a bypass pipe which is connected in parallel with a section of said main pipe and through which a portion of said fluid flowing in said main pipe is caused to flow, said bypass pipe comprising an electrically conductive pipe section electrically insulated from said main pipe;
- electrical conductor means connected to said conductive pipe section for electrically connecting said conductive pipe section to ground;
- current measuring means connected to said electrical conductor means for measuring the magnitude of electric current flowing in said conductor means;
- and flow measuring means disposed in said bypass pipe for measuring flow rate of said portion of the fluid flowing in said bypass pipe;
- and
- flow control means in said bypass pipe for controlling the flow rate of the fluid therethrough;
- said conductive pipe section having sufficient length for the electric charge carried by said portion of fluid flowing in said conductive pipe section at the flow rate as controlled by said flow control means to be absorbed by said conductive pipe section and grounded through said conductor means.
Dependencies are inferred from the claim text.