Whether the printer the smartphone will be able - to unpack 3D?by means of 3D - printers what only do not print today: from toys and details to food and firearms, even houses quite suitable for life of people. Unfortunately, some restrictions of the volume press are not overcome yet. For example, until recently nobody could unpack any electronic devices.
Engineers from the Californian university in Berkeley together with colleagues from the Taiwan National university of Chao Tong took the first real step teaching 3D - to print printers to the electronic engineer. They developed technology of the press of resistors, coils of inductance and condensers and for the first time created a product, quite suitable for daily use.
The “clever“ cover printed with researchers for a dairy bottle in interaction with the external wireless electronic device is capable to define freshness of milk without packing opening.
Most often 3D - printers use polymers which, as a rule, badly install electrical equipment for the press. To use them for creation of electronic components it is problematic.
Creators of new technology in the experiments added wax to polymer. After listing wax was removed, and in preparation cavities which filled with liquid silver were formed. After hardening metal castings formed radioelements which parameters depended on a uniform of the conductor: thin wires turned into resistors, flat plates - in condensers.
A clever dairy cover - evident demonstration of opportunities of new technology. The cover represents the wireless sensor on the basis of the oscillatory contour consisting of capacity and the coil of inductance. Bacteria create acidic environment and if in milk there is a lot of them, considerably influence resonance parameters.
That bacteria got to an oscillatory contour, it is enough to stir up packing, and the part of contents will get to a trap - small capacity, between plates of the condenser of a “clever“ cover.
Resonant frequency of a contour changes in process of milk damage. During experiment with the closed bottle at the room temperature frequency decreased by 4,3% after 36 hours of storage of a product. The milk stored in the refrigerator for the same time practically did not change the consumer properties, the frequency of a resonance decreased by only 0,12%.
The chief author of research professor Liwei Lin (Liwei Lin) from Berkeley is sure that the technology allows to create rather cheap electronic schemes which, introduced in packing of products, could notify consumers on a condition of a product. For example, buyers, using the software of the smartphone, could check freshness of food directly on shelves of shops.
Professor believes that the 3D technology - the press of radio electronics is waited by the big future. “Once people will be able just to download the file for 3D - the press from the Internet, having ordered a form and color and to unpack useful devices in house conditions“, - Lin dreams.
Nevertheless Liwei Lin does not think that consumers will have an opportunity to unpack in house conditions smartphones and computers in the near future. In his opinion, it would be too difficult and expensive.