Beijing nguva Nyamavhuvhu 12 3:31 PM, iyo Historic Park Sun detector (Parker Solar Probe) paCape Canaveral Air Force Base slc-37b yakatangwa zvishoma neDelta 4 maroketi anorema akatanga. Mushure mekubhururuka kwemaminetsi makumi mana nematatu, kunyangwe nguva yacho yakasangana nechikamu chechitatu chekufungidzirwa kurasikirwa kwenguva inonakidza, rombo rakanaka ndiyo yekupedzisira pedyo nekupotsa, Parker detector yakabudirira kuparadzaniswa neroketi, yakamisa tsoka munzira refu kuenda kuzuva, uye nokudaro yakavhura rwendo rutsva rwekuongorora kwevanhu zuva!
Sun Detector
Tanga saiti
Kugadzira rekodhi renyika kuti risvike kunzvimbo iri padyo muzuva, vanhu vanofanirwa kutsvaga zvinhu zvinokwanisa kutsungirira mazinga asati amboonekwa ekupisa kwepamusoro-soro. Zvinogona kutaurwa kuti kana pasina thermal protection system (TPS), hapana Parker. Zvinoenderana nehurongwa, Parker achapinda 4 miriyoni mamaira kubva pasi pezuva (6.11 miriyoni km). Kuti uenderane nenharaunda iyi inopisa zvakanyanya, detector inotakura chivharo chekupisa chakasanganiswa, iyo dome ichamira kupenya kwezuva. Iyo inopisa shield haigone kuve yakagadzirwa makore gumi apfuura.
Kana uri 1 sikweya mita setiraiti muEarth orbit, uye simba rezuva rinosvika 1350 watts kuti risvike kwauri, asi Parker iri pedyo kakapetwa ka25 pane chinzvimbo ichi, chinova chingangoita 850,000 watts ekupisa paskweya mita. Kana nzvimbo yacho ichiverengwa, Parker's solar probe inofanira kumira kusvika mamiriyoni matatu emagetsi. Iyo detector's heat shield inozivikanwawo seThermal Protection system (TPS), inosanganisira maviri akakwenenzverwa kabhoni akaumbwa uye kabhoni foam ine yepakati clamp inosvika 4.5 inches (11.43cm). Chidziviriro chekupisa chakatarisana neZuva zvakare chine jira jena rakakosha kuratidza simba rinobva kuzuva zvakanyanya sezvinobvira. Nyaya iyi inoshingirira ku2,500 degrees Fahrenheit (inenge 1371 ℃) uye inova nechokwadi chekuti chiridzwa chinoshanda chinosvika 85 degrees Fahrenheit (inenge 30 ℃).
"Kana basa iri raive mu60 kusvika ku70, kunyangwe rakaiswa mu80's, zvinokwanisika kubhururuka masimbi akadzikama kupisa," akadaro Driesman. "Masayendisiti achavaka Jerdon yesimbi ine yakanyanya kunyunguduka, asi usamboitumira kudenga, nokuti simbi inorema zvikuru. "Kusiyana nemafuta akawanda ekutengesa kabhoni, carbon-carbon structure yavo haina polymerized nekuoma resins nokuti mashizha akaoma anoputika pedyo nezuva semafuta pamigwagwa inopisa, "akadaro. Kuita kuti nhovo yekupisa ", iyo inogadzirisa carbon resin, inogadzirisa carbon resin, iyo NASA inoomesa resin, inoomesa carbon resin, iyo inoomesa carbon resin, NASA inoomesa resin, iyo inoomesa carbon resin, iyo inoomesa carbon resin, NASA yakaomeswa. muhovhoni ye3,000-degree, uye inodzokorora maitiro mana kusvika kashanu "Pakupedzisira iwe unowana iyo kabhoni fiber yakakukomberedza. Iyo carbon-carbon structure yatiri kutaura nezvayo i pure carbon, isina resin nezvimwe zvinhu. "Mativi epamberi uye kumashure kwechidziviriro chinopisa anogadzirwa nekabhoni-carbon plate, iyo, kunze kwekuve insulated, ine simba rakasimba remagetsi." 2 akaturikidzana ecarbon-carbon sheets akatetepa zvekuti anogona kukotama uye kunyange kupindirana. Pakati pematanho maviri-kabhoni-kabhoni zvinhu, mutsetse unosvika 4.5 inches yecarbon foam, iyo yava kushandiswa muindasitiri yekurapa kugadzira mamwe mapfupa. Sangweji dhizaini inosimudzira chimiro chese-senge marata kadhibhodhi-inongorema makirogiramu zana nemakumi matanhatu (anenge 73kg) yenhoo yese yekupisa ye8-foot-gobvu.
Foam zvakare ndiyo inonyanya kukosha chimiro che thermal shield insulation function. Asi 97% yecarbon bubble imhepo, kuitira kuti uwedzere kudzikisa huremu hwenzvimbo probes. Iyo kabhoni pachayo ndeye thermally conductive, uye furo chimiro zvakare chinoreva kuti hakuna kupisa kwakanyanya kunofambiswa. Mabubbles haasi nyore kuyedza, ane brittle zvakanyanya. Asi pane rimwe dambudziko. "Kana dzapisa dzinopisa." "Akadaro Abel. Kupisa harisi dambudziko guru muvacuum, asi mhepo yasara mumuedzo ichaita kuti mabubbles apise kuva marasha. Nokudaro, National Oak Ridge Laboratory Engineers ine high-temperature plasma arc marambi kuti iongorore heat shield yea carbon foam high temperature resistance. The thermal insulation inodiwa kuti iite marasha. hapana kupera kwemhepo munzvimbo, nzira chete yekubvisa kupisa ndeyekuparadzira chiedza uye kubudisa kupisa mumhando ye photons Nokudaro, imwe nzvimbo yekudzivirira inodiwa: jira rakachena rinodzivirira rinoshandiswa kuratidza kupisa uye chiedza.
Parker Solar Detector thermal shield chimiro schematic diagram
Kuti izvi zviitike, Applied Physics Laboratory paJohns Hopkins University uye Advanced Technology Laboratory yeWhiting School of Engineering (Advanced Technology Laboratory muJohns Hopkins University 's whiting School Engineering) yakaumba chikwata chenyanzvi dzezvikwata zvekupisa zvekupisa zvekuputira zvikwiriso zvemhando yepamusoro, nechikwata chekutsvagisa kufukidzwa kweanopisa-tembiricha maplasma kemikari. Kuburikidza nekumwe kuyedza, timu yakazosarudza iyo chena yekudzivirira yakavakirwa pane alumina. Asi iyo yekudzivirira yaizochena kunze munzvimbo yekushisa yakakwira ine kabhoni reaction, saka mainjiniya akawedzera runyoro rwetungsten kusvika pakati, yakatetepa kupfuura bvudzi, uye yakaputirwa pakati pechidzitiro chekupisa uye chena nhovo kudzivirira kusangana pakati pematanho maviri. Vanowedzerawo nano-doping agent kuita kuti nhovo dzive chena uye kudzivirira kuwedzera kwekupisa kwealumina particles. Dennis Nagle, mukuru wekutsvagisa injinjini paCentre for Systems Sainzi uye engineering, akataura kuti kazhinji kana uchishandisa ceramics, yakaomeswa, ine porous coating inofarirwa, asi iyo inoputsika kana yarohwa nesando. Patembiricha yakatarisana neParker, iyo yakapfava yakapfava inotsemuka kunge hwindo rakaroverwa nedombo. Nokudaro, kunyange porous coatings inogona kumira iyi yakanyanyisa nharaunda. Kana pakatsemuka mumicheka ine porous, mitswe inomira kana yasvika pores. Iyo yekuputira ine akati wandei akakora granular layers-yakakwana kubvumira boka remaceramic particles kuratidza mwenje usipo kubva kune imwe layer.
Nguva yekutumira: Aug-15-2018