RU2622730C2 - Device for measuring level of fuel in tanks of vehicles - Google Patents

Abstract

FIELD: measurement technology.

SUBSTANCE: device for measuring the fuel level in the tank rockets (TR) comprises a capacitive sensor electrodes and its fastening elements. The device is made as a tube rigidly fixed to the bottom of the tank. At the height of the tube the additional capacitive sensors are installed. Electrodes of each capacitance sensor are formed as copper plates set at a distance from each other on the studs. The even copper plates soldered to studs, located diagonally, and the odd copper plates are sent to the remaining studs. The ends of the studs are fixed in blocks fixedly mounted in the tube, and on one of the pads are made holes for electrical wires, which interact with two even and two odd copper plates whose outputs are transferred outside of the tube, which provides the electrical connection of capacitive sensors. The ends of the copper plates are rigidly fixed. Wires of telecommunications of capacitive sensors are protected by a casing, and the upper part of the tube cover.

EFFECT: improving the accuracy of measuring the level of fuel in the tanks TR.

3 cl, 3 dwg

Description

The invention relates to measuring equipment and is intended to measure the level of dielectric liquids in the tanks of launch vehicles, and can be used in various fields of industry of the national economy.

A known sensor for measuring the level of fuel in the tank and a system for measuring the mass of fuel. The sensor consists of concentric tubes of insulating material, two capacitors with a set of electrodes. The kit includes a pair of tape electrodes located along the axis of the sensor opposite each other on the walls of the inner and outer bushings (US patent No. 7010985).

The closest to the purpose is a capacitive sensor, consisting of electrically insulated from each other cylindrical coaxial electrodes located on the screen in the form of tube-connected bushings, and are used in cryogenic technology (patent RU No. 2112931 - prototype).

The disadvantages of the known technical solution, as well as the above, are their limited operational capabilities, since they are not designed to measure the fuel level in large tanks (for example, in launch vehicle tanks), and an increase in their length along the height of the tank will lead to vibrations due to vibration, which will negatively affect the accuracy of measuring the fuel level.

The objectives of the invention are to expand its operational capabilities and improve accuracy when measuring the level of fuel in large tanks.

The problem is solved in that in the device for measuring the level of fuel in the tanks of launch vehicles, which includes a capacitive sensor in the form of electrodes and elements of its fastening, according to the invention, the device is made in the form of a pipe rigidly fixed to the bottom of the tank, in which its height additional capacitive sensors are installed, while the electrodes of each capacitive sensor are made in the form of copper plates mounted at a distance from each other on studs, and even copper plates are soldered to the studs, located diagonally, and the odd copper plates to the remaining studs, while the ends of the studs are fixed in blocks rigidly installed in the pipe, and holes for electric wires are made on one of the blocks, connected to two even and two odd copper plates, the terminals of which are led out the limits of the pipe, which ensures electrical connection of all capacitive sensors, while the ends of the copper plates are rigidly fixed.

The problem is also solved by the fact that the electric wires of the capacitive sensors are protected by a casing, and the upper part of the pipe by a lid, while the ends of the copper plates are rigidly fixed in an arc, for example, by means of a wire that excludes vibrations during vibration.

The drawings show the design of the claimed technical solution:

FIG. 1 - general view of the device;

FIG. 2 is a view AA in FIG. one;

FIG. 3 is a view of BB in FIG. 2.

The claimed device comprises a pipe 1 of a flange 2 welded to it, which is rigidly fixed to the bottom of the fuel tank (not shown), capacitive sensors 3 are rigidly fixed along the height of the pipe 1 by means of screws 4. The electrodes of each capacitive sensor 3 are made in the form of copper plates 5, which are installed at a distance from each other on four studs 6, while the even copper plates 5 are soldered to the studs located diagonally, and the odd copper plates 5 are soldered to the remaining two studs 6, while the ends of the studs 6 are fixed in blocks 7 They are installed in the pipe 1, and holes for electric wires 8 are made on one of the blocks, interacting with two even and two odd copper plates 5, the conclusions of which are outside the pipe 1, which ensures electrical connection of all capacitive sensors 3, while the ends of the copper plates 5 on both sides is rigidly fixed in an arc through a wire 9, which excludes vibrations during vibration, while the wires electrically connecting capacitive sensors 3 are protected by a casing 10, and the upper part by a cover 11.

Capacitive sensors are electrically connected to a computing device (not shown), which measures the capacitance of the sensors and determines whether the sensor is immersed in fuel or not. Measurement of fuel level is determined based on those sensors that are immersed in fuel.

The claimed technical solution extends the operational capabilities of the claimed device and improves accuracy when measuring fuel in the tanks of launch vehicles.

Claims (3)

1. A device for measuring the fuel level in the tanks of launch vehicles, which includes a capacitive sensor in the form of electrodes and its fastening elements, characterized in that the device is made in the form of a pipe rigidly fixed to the bottom of the tank, in which additional capacitive sensors are installed along its height sensors, while the electrodes of each capacitive sensor are made in the form of copper plates mounted at a distance from each other on studs, with even copper plates soldered to studs located diagonally, and odd copper plates astinki - to the remaining studs, while the ends of the studs are fixed in blocks fixed rigidly in the pipe, and on one of the blocks holes are made for electric wires connected to two even and two odd copper plates, the conclusions of which are led outside the pipe, providing electrical connection to all capacitive sensors, while the ends of the copper plates are rigidly fixed. 2. The device according to claim 1, characterized in that the electrical communication wires of the capacitive sensors are protected by a casing, and the upper part of the pipe by a cover. 3. The device according to p. 1, characterized in that the ends of the copper plates are rigidly fixed in an arc, for example, by means of a wire that excludes vibrations during vibration.

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