SU365572A1 - DEVICE FOR MEASURING WATER FLOW IN THE CHANNELS WITH FIXED STEAM - Google Patents

Description

one

This invention relates to the measurement of the flow rate of water in open channels in a retaining-variable flow regime.

The known device for measuring the flow of water in the channels with a fixed channel contains mechanical elements, rotating under the action of water flow, and electrocontact converters.

In order to improve measurement accuracy and reliability in the proposed device, inside the flow velocity sensor made in the form of a pressure tube, there is a float with a ferromagnetic core interacting with a distributed functional winding that is connected together with the primary winding of the angular displacement sensor to a source of stabilized voltage and is serially connected with the current windings of the recording devices, and the secondary winding of the angular displacement sensor is connected to the windings of the voltage you eukazannyh recording devices.

FIG. 1 shows the described device; in fig. 2 - tube pressure velocity; in fig. 3 - electrical circuit of the device.

The tube 1 of the velocity head is rigidly connected to the float 2. The latter is pivotally connected to the hydrometric bridge 6 through the rotary frame 3 with the axles 4, 5 and the tube / with the socket end 7 is placed in the flow and

protected from clogging with an elastic membrane 8. The internal cavity of the tube is filled with liquid. Inside the tube there is a float 9 with a ferromagnetic core 10. The weight of the float with a core is balanced by fluid and load // connected to the core through block 12. A movable ferromagnetic sensor 13 is mounted at one end of the axis, and 13

damper M.

A winding 15 wound onto the tube I has distributed turns and is functional for extracting the square root. It is connected together with the primary winding of the sensor 13 to the source 16 of stabilized voltage and is connected in series with the current windings of the recording devices. The winding current 15 is proportional to the speed

flow, and the voltage determined by the angle of rotation of the sensor core 13, is proportional to the water level in the channel.

The source volt-ammeter readings are respectively proportional to instantaneous and

total water consumption.

Subject invention

A device for measuring the flow of water in the channels with a fixed channel, containing

a flow velocity sensor in the form of a pressure tube filled with liquid and closed by an elastic membrane, rigidly connected to a float hinged at the lower end of the swing frame, an angular stirring sensor for the frame and a magnetic damper for its oscillations, characterized in that in order to improve the accuracy of measurements and device reliability, inside the flow velocity sensor there is a float with a ferromagnetic core interacting with a distributed functional winding that is connected together with the primary winding of dates ika angular displacements to a source of stabilized voltage and connected in series with current windings recording devices, and secondary winding angle sensor connected to the windings of a stirred voltage above recording devices.

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