RU2619481C1 - Maneuverable stand for measuring and adjustment the magnetic field of marine facilities - Google Patents

Abstract

FIELD: measurement equipment.

SUBSTANCE: proposed maneuverable stand for measurement and adjustment of the magnetic field of marine facilities, including measuring magnetic field sensors, laser emitters, indicating the installation location and sensors position, turnable beam on which the sensors and transmitters are installed, submersible platform with adjustable buoyancy, on which a beam with sensors is set, towed to the selected waters location, remote-controlled structurally linked with the platform jacks, allowing to establish the platform on the ground and fix this position, as well as the design, moving on the water surface in the area of fixed platform, with laser receivers, with a satellite navigation equipment, determining the structure coordinates, and equipment, transmitting the signals of measuring sensors position.

EFFECT: improved accuracy of measurement of the magnetic field of marine engineering facilities.

1 dwg

Description

The invention relates to devices for reducing the magnetic field of objects of marine engineering, for example, vessels intended for geomagnetic surveying in areas where there are no stationary magnetic stands.

To measure the magnetic field of such devices and its settings in a given area of the water area on the ground, a maneuverable stand is quickly installed.

In this case, an auxiliary vessel is used to ensure the delivery of the maneuverable stand and its installation on the ground.

Having installed the magnetic field sensors, the auxiliary vessel is removed to a distance that provides insignificant influence of its own magnetic field on the measurement results of the field of the controlled vessel (V.I. Bolshakov, V.A. Narchev, V.V. Nesterov, Yu.P. Oboishev, S .P. Sazonov, NM Semenov. “Development of stands for monitoring the magnetic state of ships”, Proceedings of the second international conference on shipbuilding - ISC 98, St. Petersburg, 1998).

Known RF patent No. 2551412 dated 12/30/2013 (MV Fomichev, OE Mendelssohn, DA Mayorov. "A maneuverable stand for measuring and adjusting the magnetic field of a surface (underwater) object") is a prototype.

The patent proposes a maneuverable stand, quickly installed in an unequipped area of the water area for measuring and adjusting the magnetic field of marine equipment objects, containing a platform that is lowered from an auxiliary vessel to the ground, with variable buoyancy, which is delivered by this vessel to a specified area of the water area and is installed on the ground in the required position using remotely controlled jacks.

On this platform, a beam is rotated at a given angle with magnetic field sensors installed on it and devices that allow you to determine the coordinates of the sensors and transmit signals from the installed devices to the stand or object.

Adjustment of the buoyancy of the platform is provided by tanks filled with air.

The accuracy of measurements made on a mobile stand, largely depends on the accuracy of determining the relative position of the sensors and the controlled object of marine equipment at the time of measurement.

The coordinates of the object and its spatial location are determined using satellite navigation equipment installed on this object.

The coordinates of each of the magnetic field sensors of the mobile stand are determined taking into account the location of the platform on the ground and the position of the beam on this platform.

The position of the beam is determined by the rays of the laser emitters after installing the platform on the ground and is refined by the signals from the sensors of angular rotation of the beam when measuring the object.

In the process of measuring and adjusting the magnetic field of the controlled object, made for a sufficiently long time, under the influence of various factors, the spatial position of the platform on the ground can change, which is the reason for the additional error that reduces the accuracy of measurements.

The provided fixation of the laser emitter beams, carried out after installing the platform on the ground, determining the position of the beam on the platform, which is taken into account when assessing the relative position of the object and magnetic field sensors, does not provide the necessary accuracy of the coordinate reference and, accordingly, sufficiently accurate measurements of the magnetic field of the measured marine equipment object.

Reducing the measurement error of the magnetic field of the measured object with insufficient accuracy in determining the relative position of the object and the sensors is possible by periodically clarifying the position of the laser emitters, but this is quite difficult to implement given the complexity and high complexity of the envisaged control.

The lack of accuracy in measuring the magnetic field of an object on a mobile stand due to the error in determining the relative position of the object and magnetic field sensors according to the location of the laser emitters installed on the beam with the sensors is a significant disadvantage of the prototype.

The objective of the invention is to increase the accuracy of measuring the magnetic field of an object of marine equipment on a mobile stand by reducing the additional error caused by the inaccuracy of determining the relative position of the measured object and magnetic field sensors.

To solve this problem, a maneuverable stand for measuring and adjusting the magnetic field of marine engineering objects is proposed, including magnetic field measuring sensors, laser emitters, indicating the installation location and position of the sensors, a swivel beam on which sensors and emitters are installed, an immersion platform with adjustable buoyancy, which is equipped with a beam with sensors, towed to a selected area of the water area, remotely controlled jacks constructively connected to the platform, allowing installation of the platform on the ground and fixing this position, additionally equipping it with a structure moving over the water surface in the area of the installed platform, with laser radiation receivers, with satellite navigation equipment that determines the coordinates of the structure, and with equipment transmitting signals about the position of the measuring sensors.

The invention is illustrated in FIG. 1, where are schematically represented:

1 - remotely rotated beam;

2 - measuring magnetic field sensors with devices for transmitting signals to a stand or object;

3 - laser emitters;

4 - platform with adjustable buoyancy;

5 - controlled jacks, fixing a given position of the platform;

6 - tanks providing the required buoyancy of the platform;

7 - buoy with equipment transmitting signals to the object (maneuvering stand) and receiving satellite navigation signals;

8 - cable for transmitting signals from equipment installed on the beam on the buoy;

9 - a controlled object of marine equipment;

10 - satellite navigation DGPS;

11 - matrix of laser radiation receivers;

12 - moving structure with receivers of laser radiation;

13 - satellite navigation DGPS on a moving structure;

14 - rays of a laser emitter mounted on a beam.

A submersible platform (4) with a beam (1), on which magnetic field sensors (2) and other equipment (3) are installed, is towed by a carrier vessel to a selected area of the water area.

Immersion of the platform on the ground is realized when its buoyancy is changed using tanks (6).

Pumps for pumping air into tanks are located on a carrier vessel.

The position of the platform on the ground is fixed by remotely controlled jacks (5) Orientation of sensors and other devices mounted on the beam is carried out remotely when it is rotated to the required angle. Signals from sensors and other devices are transmitted via cable (8) to the buoy (7), and from it to the controlled object via the radio channel using equipment installed on the buoy.

The platform coordinates are determined by the received satellite navigation signals DGPS (10).

The laser emitter beams (14) allow you to control the position of the beam with sensors. The matrix of laser radiation receivers (11) on a moving structure (12) makes it possible to detect the rays of laser emitters and fix their position with the necessary accuracy using satellite navigation signals received by equipment (13) mounted on a moving structure.

The present invention improves the accuracy of measuring the magnetic field of an object of marine equipment on a mobile stand by reducing the additional error caused by the inaccuracy of determining the relative position of the measured object and magnetic field sensors and the possibility of periodically updating the position of the sensors on an immersed platform.

Claims (1)

A maneuverable bench for measuring and adjusting the magnetic field of marine engineering objects, including measuring magnetic field sensors, laser emitters, indicating the installation location and position of the sensors, a swivel beam on which the sensors and emitters are mounted, an immersion platform with adjustable buoyancy, on which a beam with sensors is mounted , towed to a selected location in the water area, remotely controlled jacks structurally connected to the platform, allowing the platform to be installed on the ground and fixed Vat this position, characterized in that said stand further equipped structure moving on the water surface in the vicinity of the installed platform with laser radiation receivers with satellite navigation equipment, determining the structure coordinates, and with equipment, transmitting signals on the status measurement sensor.

Images