The new base technology for the manufacture of parts of the reflector mirror-new space observatory "Millimetron" developed at the Physics Institute of the RAS.
Technology improves accuracy and reduces the cost of making this most important parts of the instrument, so it can be successfully used to create a new orbiting observatories told
"The quality of space satellite systems depends on the precise execution of the reflecting surface of the reflector and the strain of their working surfaces, — said a senior researcher at the Department of Space Structures Astro Space Center of Lebedev Physical Institute Viktor Pyshnov. — For millimeter tolerances are only a few microns diameter mirror for a few meters. This determines the choice of materials, design and manufacturing of reflectors. "
In this regard, as possible materials to create precise details as can be seen, only those which have a low coefficient of thermal expansion.
Such a little: in Russia for this purpose uses a material called Astrositall, but it is fragile, and the technology of its processing is very time consuming and expensive — the making of one square meter costs about a million dollars and takes about a year.
There is another material — carbon fiber, Astrositall superior in rigidity, weight, impact resistance. But carbon fiber warp from internal stresses, strains exposed to humid, and the cracking of the polymer matrix.
"We see a solution to this problem is to use the strengths of Astrositall and carbon and mitigate their weaknesses, — said Victor Pyshnov. — This is achieved by the fact that carbon fiber structures will be molded by precision matrices of Astrositall. "
This connection allows the two materials to achieve impressive results, and as a result, stated Pyshnov be able to "provide the best price-quality and market success supertochnyh space antennas millimeter."
Duration of manufacturing a panel at the same time is no more than a month, and the cost per square meter — no more than 200 thousand dollars. This design is superior in rigidity pyroceramics twice and lighter in weight by 1.7 times.
Currently, for testing the new technology created and produced experimental production of experimental models and technology models of precision panels. Already obtained the necessary data for the design and organization of the working staff of the tiles for the reflector "Millimetron."
According to the newspaper VIEW, January Roscosmos
Observatory "Millimetron" (project "Spectrum-M") is intended for research of astronomical objects in the universe in the far infrared, millimeter and submillimeter ranges of the electromagnetic spectrum with ultra-high sensitivity in single telescope and a record high angular resolution in the ground-space interferometer.
Customer The Federal Space Agency, the basis for the work on the project "Spectrum-M" is the Federal Space Program 2015
Leading research organization to develop a set of scientific instruments, including a telescope project "Spectrum-M" is the Astro Space Center of PN Lebedev Physics Institute. PN Lebedev. The development is carried out in cooperation with a number of Russian and foreign organizations.
The parent company to create a space complex on the contest, conducted in 2012, is the Federal State Unitary Enterprise NPO. SA Lavochkin.