Fluid flow detector
First Claim
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1. A system for determining a volume flow rate of a fluid, comprising:
- a conduit for passage of the fluid;
a valve across the conduit which is mechanically unbiased and freely movable solely by the fluid to allow passage thereof;
sensor means adapted to sense the position of the valve and provide an electronic output which is representative of fluid volume flow through the conduit;
an electronic monitoring system remote from the valve adapted to log the output from the sensor, and a physical or chemical property determining device,wherein the monitoring system is adapted to trigger said device on a preset time or angular movement of the valve.
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Accused Products
Abstract
A system and method for determining a volume rate fluid, particularly liquid such as sewage, comprises a conduit for passage of sewage, a freely pivotable flap valve mounted at an outlet of the conduit and carrying a sensor. This sensor monitors the angular position of the flap valve and provides an electronic output representative of fluid volume flow through the conduit.
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Citations
30 Claims
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1. A system for determining a volume flow rate of a fluid, comprising:
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a conduit for passage of the fluid; a valve across the conduit which is mechanically unbiased and freely movable solely by the fluid to allow passage thereof; sensor means adapted to sense the position of the valve and provide an electronic output which is representative of fluid volume flow through the conduit; an electronic monitoring system remote from the valve adapted to log the output from the sensor, and a physical or chemical property determining device, wherein the monitoring system is adapted to trigger said device on a preset time or angular movement of the valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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10. A system for determining a volume flow rate of a fluid, comprising:
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a conduit for passage of the fluid; a valve across the conduit which is mechanically unbiased and freely movable solely by the fluid to allow passage thereof, the valve comprising a pivotably mounted flap valve on the conduit; and sensor means adapted to sense the position of the valve and provide an electronic output which is representative of fluid volume flow through the conduit, the sensor means comprising a gravity actuable electronic sensor means and an actuator element which is adjustable in position depending on angular movement of the flap valve, wherein the actuator element comprises an electrically conductive rollable element mounted for rolling along a resistive track between two electrically conductive strips. - View Dependent Claims (11)
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22. A method for determining the volume flow rate of a fluid, comprising the steps of:
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providing a conduit for passage of the fluid; providing a valve across the conduit which is mechanically unbiased and freely movable solely by the fluid to allow passage thereof; sensing the position of the valve when fluid flows therepast; providing an electronic output commensurate with the position of the valve which is representative of the fluid volume flow through the conduit; monitoring the output; and triggering a physical or chemical property determining device on a preset time or angular movement of the valve. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification