Device for determining vertical of spacecraft location

FIELD: instrument industry.

SUBSTANCE: device comprises two spheres mounted with a spaced relation one to the other. The outer sphere is made of a superconducting material, and the inner sphere is made of a magnetic material. The outer sphere is secured to the spacecraft, and the inner sphere is shifted with respect to the center of gravity and has the radiation source. The output of the radiation receiving unit is connected with the information input of the recording unit whose control input is connected with the output of the board control unit.

EFFECT: simplified structure.

5 cl, 2 dwg

 

The invention relates to space technology and can be used for navigation measurements of the vertical space on the SPACECRAFT).

The known device, which allows to determine the spatial position of the SPACECRAFT, including its orientation, by measurements at KA directions on natural celestial bodies: the Sun, stars and planets (see the "Engineering guide to space technology" Ed. by Avirodha, M., Voenizdat, Moscow region, USSR, 1969, str-366), from which you can get the value of the vertical space CA. The disadvantages of this device are its complexity, because it requires at least three servo system, and a significant dependence on mechanical effects.

Also known device, which allows to determine the spatial location of the AC evaluates the vertical space KA, using the group of artificial satellites, the so-called "constellations", equipped with special radio systems, one of which is located on the AC. Method of different dimensions is solved the navigation problem of positioning SATELLITES (see, for example, the magazine "Foreign Radioelectronics" 1987, No. 11, page 3-18; 1985, No. 11, page 3, which describes such a system NAVSTAR, or Network satellite navigation systems" Ed. by FAA and Wasserchemie, M., "Radio and the Light is ", 1982). The disadvantages of such devices are of considerable complexity and dependence on mechanical effects.

In addition, the known device for determining the vertical location of the AC, the so-called gyroscopes, has found very wide application in navigation and are discussed in detail in the literature (see, for example, "Gyroscopic system. Gyroscopic devices and systems" Ed. by Dusilova - M., "Higher school", 1988, or the previously mentioned "the Engineering Handbook of space technology", str-361). It is known device for determination of vertical space, incorporating gyroscopes, on-Board control unit and the recording unit (see patent RU No. 2206067 C1, 2002.01.10, IPC 7 G 01 C 21/00, "the Way we produce navigation parameters and vertical space"), which is selected as a prototype. The disadvantage of this device defining a vertical space are the complexity, the need for preliminary spin gyroscopes to stabilize the rotation and sensitivity to mechanical impact.

The essence of the invention lies in the fact that the device for determining the vertical location of the AC made in the form of two spheres placed one inside the other, with the outer sphere is made of superconducting and the inner sphere of magnetic materials. The outer sphere is rigidly connected to the To the, while the inner sphere is made with an offset centre of gravity and contains a radiation source. The output of block detectors connected to the information input of the recording unit, a control input connected to the output side of the control unit. The radiation source can be located on the outer side of the inner sphere, for example, in the pocket or inside the inner sphere, which in this case has a hole. In addition, the radiation source may be mounted on the line connecting the center of the inner sphere (point O in figure 1, 2) with the center hole and the center hole can be located on the line connecting the center of the inner sphere with its center of gravity. When cooling is made of superconducting material of the external sphere below the critical temperature, according to Meissner effect (see, for example, Gnedich "Superconducting materials". M: MIEM, 1990 or the Superconductors in the modern world. Megman, M.: Education, 1991, p.27), the superconductor repels the magnetic field produced by an object from a magnetic material, and, therefore, the object itself, which is the inner sphere. The last is the most stable position. The radiation of the radiation source fixed block detectors, which can represent, for example, a field (matrix) of photodiodes or other mitchiko the energy which detects the displacement of the radiation source, is proportional to the amount of vertical space CA. While the on-Board control unit and the recording unit contained in the prototype.

Figure 1 shows the design of the device determine the vertical location of the AC according to claims 1, 2, and figure 2 - according to claims 1, 4 claims, respectively.

Device for determining the vertical location of the AC contains the internal sphere 1, the onboard control unit 2, block detectors 3, the radiation source 4, an external field of 5, the recording unit 6, a hole 7 in the inner sphere 1.

Device for determining the vertical location of the AC works in the following way. On-Board control unit 2 generates a command to register the values of the vertical space KA, which is supplied to the control input of the recording unit 6, in that moment of time when the temperature of the external sphere 5 will be below the critical. This can happen in case of finding the AC on the shadow side of the Earth or the location of the device determine the vertical location of the AC, at least, areas 1 and 5, on the shadow side of KA, which provides natural cooling superconducting external sector 5. When cooled superconductor below the critical temperature of the superconductor repels the magnetic field produced by an object from a magnetic material, and therefore the object itself. Thus,the inner sphere 1 is pushed toward the center of the external sphere 5 and receives the free movement within the outer sphere 5. This inner sphere 1 is trying to find the most stable position. The radiation of the radiation source 4 is perceived by the block of detectors 3, the signal at the output of which is proportional to the deviation angle of the SPACECRAFT from the vertical space, is fed to the signal input of the recording unit 6. The radiation source 4 can be located on the outer side of the inner sphere 1, including the dredging - claims 1, 2, 3 claims. In addition, the radiation source 4 may be fixed inside the inner sphere 1, which in this case has a hole 7 - claims 1, 4 claims, including and located to eliminate errors caused by parallaxes, on the line connecting the center of the inner sphere 1 with the center hole 7 - claims 1, 5 formulas.

Due to the fact that when making maneuvers the SPACECRAFT center of gravity of the inner sphere 1 will be displaced relative to its geometric center by an angle dependent on the magnitude of the acceleration of the SPACECRAFT, it is advisable to dimension the vertical place to spend with a uniform motion of the SPACECRAFT after completion of the maneuver, or to combine it with accelerometers of different types.

A superconductor is a ceramic compound on the basis of yttrium, barium, copper and oxygen (see, for example, the previously mentioned book Megman, p.92-93, 100-102 or monthly popular science magazine "Science and life", M, 1994, p.20-22), and eat the critical temperature of 98 To, below which shows the Meissner effect. Since the discovery of superconductivity critical temperature for new superconducting materials has increased from 23 to 160 K, see DPM Angaeva published in the previously mentioned magazine "Science and life" 1997, No. 8, p.81-85. When KA on the shadow side of the Earth or when the device is determining the vertical location of the AC, at least, areas 1 and 5, on the shadow side of the SPACECRAFT, their "shadow" the temperature does not exceed -170°or 103 (see, for example, Tournament them. University 26.09.1999. Astronomy and Earth science. Answers and comments. Answer No. 6. Internet address www:/www.mccme.ru/olympiads/turlom/1999/tl1999.htm#astro), which provides natural cooling superconducting external sphere 5 and allows you to get in the end is the vertical space CA. The radiation source 4 can represent, for example, an led, a radioactive isotope or other source of radiation energy. Block detectors 3 may be made in the form of a matrix (field) of photodiodes or other energy sensors, which record the displacement of the radiation source 4. Thus formed positional code is supplied to the signal input of the recording unit 6, which detects the displacement of the radiation source 4, i.e., the deflection angle of the AC from the vertical.

Thus, the present invention can be implementing the Vano on the basis of the available elements and materials, is simpler than the known device and is less susceptible to mechanical stress, as it does not contain precision.

1. Device for determining the vertical location of the spacecraft containing the on-Board control unit and the registration unit, characterized in that the radiation source unit receivers of radiation, external and internal spheres, and the spheres are placed with a gap of one inside the other, the outer sphere is made of superconducting and the inner sphere of magnetic material, the outer sphere is rigidly connected to the axis of the spacecraft, and the inner sphere is made with an offset centre of gravity and contains a radiation source, the output of block detectors connected to the information input of the recording unit, a control input connected to the output side of the control unit.

2. The device according to claim 1, characterized in that the radiation source is placed on the outer side of the inner sphere.

3. The device according to claim 2, characterized in that the radiation source is placed in a groove on the outer side of the inner sphere.

4. The device according to claim 1, characterized in that the inner sphere has a hole, and the radiation source is secured within the specified field.

5. The device according to claim 4, characterized in that the radiation source mounted on the line connecting the center of the inner with the career center hole.

6. The device according to claim 5, characterized in that the center holes of the inner sphere is located on the line connecting the center of the inner sphere with its center of gravity.



 

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