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978results about "Volume/mass flow by dynamic fluid flow effect" patented technology

System to measure density, specific gravity, and flow rate of fluids, meter, and related methods

A system to measure fluid flow characteristics in a pipeline, meter, and methods includes a pipeline having a passageway to transport flowing fluid therethrough, a process density meter including at least portions thereof positioned within the pipeline to provide flowing fluid characteristics including volumetric flow rate, fluid density, and mass flow rate of the flowing fluid, and a fluid characteristic display to display the fluid characteristics. The process density meter includes a vortex-shedding body positioned within the pipeline to form vortices and a vortex meter having a vortex frequency sensor to measure the frequency of the vortices and to determine the volumetric flow rate. The process density meter further includes a differential pressure meter positioned adjacent the vortex-shedding body to produce a differential pressure meter flow rate signal indicative of the density of fluid when flowing through the pipeline. The process density meter also includes a thermal flow meter positioned adjacent the vortex-shedding body to produce a mass flow rate signal indicative of the mass flow rate of fluid when flowing through the pipeline. The process density meter produces an output of a volumetric flow rate, a flowing fluid density, and a mass flow rate to be displayed by the fluid characteristic display.

Conductive fluid leak detection system & automatic shut off valve

A flood control device and system which controls conductive fluid(s) in a conductive fluid supply line and or path, using the conductivity of said fluid(s). The conductive fluid system comprises; a conductive fluid supply line, in-line conductive fluid shut-off valve, in-line conductive fluid detector, conductive fluid sensor(s) (attached in or to conductive fluid dependent appliances), a D.C. powered central processing unit, and control panel. The conductive fluid flows through said conductive fluid line, said in-line conductive fluid shut-off valve, intern reaching said in-line conductive fluid detector which detects the flow of conductive fluid, thereby sending data to said central processing unit. When said central processing unit receives said data, said central processing unit delays for a predetermined amount of time (example 3 seconds) waiting to receive data from one or more of said conductive fluid sensor(s). If said central processing unit doesn't receive said data from said conductive fluid sensor(s) within said predetermined, said central processing unit will automatically send data to said in-line conductive fluid shut-off valve, to close, therefore terminating the forward flow of conductive fluid(s). System also includes audible signal(s) to signal an alarm condition, timing mode(s) for water conservation and monitoring in-line conductive fluid shut-off valve movements, a phone notifier for notifying user of said termination of conduct fluid due to a conductive fluid leak detection, and for (user-set) excessive water usage, means for communicating with said central processing unit by way of telephonic communication (to close or re-open said in-line conductive fluid shut-off valve), a battery back up system, and means of operating by way of manual means.

Apparatus for flow detection, measurement and control and method for use of same

A flow sensor having an inlet and an outlet comprising: a plate moving in response to fluid flow therethrough, being displaced further as flow increases; a sensor for determining moving plate's position and creating an electronic signal related thereto; a biasing means for biasing the plate towards the sensor's inlet end. The sensor may include a sealing means for preventing flow therethrough until a specified differential pressure is reached allowing the device to be used as a bypass mechanism. The sealing means may also constitute a check valve means to prevent flow in an undesired direction. The check means comprises: a bullet rod adapted to be received within an orifice defined in a moving plate, such that the bullet rod prevents flow through the orifice until the moving plate is displaced past a terminal end of the bullet rod; and a plate means sealingly and slidingly received within a cylinder, which is closed for a portion of its length and open for another portion of its length, such that flow is prevented until the plate is displaced past the closed portion of the cylinder. The method using the sensor in multipurpose piping systems includes use of the apparatus in a system incorporating at least one fire sprinkler, the piping system also preferably providing at least one other use in the structure. The other use in the structure may be supplying domestic needs, or supplying heating/cooling water for a heating/air conditioning system.

Apparatus and method for detecting the displacement

An apparatus for detecting the displacement of a magnet is to be provided. The errors on the detected value due to the variation of temperature or that with time are hardly caused in the apparatus. The apparatus can detect the displacement in high resolution and precision. The apparatus is simple in its structure, and it can be expected that the apparatus can be manufactured in low cost. The apparatus is not limited in its application by the range of the displacement of the magnet. Further, a method for detecting the displacement of a magnet will be provided. An apparatus for detecting the displacement of a magnet M, the apparatus being characterized in that it further comprises a plurality of hall devices H0-H7 disposed in a predetermined spacing DP along a displacing path of the magnet in parallel thereto, wherein each of said hall devices includes a magnetically sensitive surface HS through which a magnetic flux from said magnet M permeate to generate an output the polarity and the voltage of which are depend on the direction and the density of the magnetic flux, and said magnetically sensitive surface HS of each hall device is disposed in a predetermined distance from the displacing path of the magnet M in parallel with the direction defined by the magnetic poles, and wherein two adjacent hall devices inverted in the polarity of their output voltages are detected to determine the general position of the magnet, and the precise position of the magnet between these two hall devices is determined on the basis of the output voltages.
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