Barlow: Mankhwala mfundo

Barlow ndi chimodzi mwa chowonjezera otchuka pa mikono ya zakuthambo, onse akatswiri ndi ankachita masewera. Nkofunika mu m'ntchito imeneyi. chipangizo chimenechi m'njira yosavuta mawonekedwe concave mandala (zoipa), zomwe kwambiri kumawonjezera magnification bwino zakutali ndi. mchitidwe uwu kupangidwa mu XIX m'ma masamu Peter Barlow. Choncho dzina la chipangizo ichi.

ntchito mankhwala

Chifukwa amagwiritsidwa ntchito mwanjira zosiyanasiyana, Barlow mandala ali ndithu chimagwiritsidwa ntchito ndi zakuthambo ziyeneretso osiyana. Ndi chipangizo mungathe kunyamula pazipita zotheka kuwonjezeka mu chinthu chimenecho ndasungira kudzera zakutali ndi. Mundawu zofunika. Mwachitsanzo, Barlow 2X mandala pamene kuwayika pakati pa eyepiece wa zakutali ndi mandala, kupereka muyezo 100x magnification kumawonjezera chithunzi kuti 200x. Koma ngati zothandiza kuwonjezeka zimadalira bata ndi mumlengalenga zinthu, ntchito anati mankhwala si nthawizonse owona. Mwachitsanzo, ngati pa magnification wa 100x airflows chithunzi blur, ndi Barlow mandala, anawaonjezera kuwirikiza kawiri mlingo wa chiyerekezo kuti 200x, kokha kukulitsa nkhaniyo. The yabwino kwambiri ndi ntchito chipangizo izi osakaniza ndi yochepa cholinga zakutali. Chipangizo Barlow mandala adzakupatsani Mwachangu ndithu chifukwa chakuti telesikopu anati sadziwa kutakasuka, chifukwa ntchito mu muyezo eyepieces yochepa kwambiri. Barlow komanso ndi chida chofunika kwambiri kwa wogonjetsa mapulaneti pa filimu kapena kamera yadigito.
Limawapatsa mpata kuti "kukoka" pa zinthu zazing'ono, kapena kusolola pa chithunzichi. Chifukwa cha makulidwe ang'onoang'ono a galasi getsi njira khalidwe mandala adzakupatsani chifukwa lolingana kuposa ziyerekezo mwa eyepiece kuti photodetector a.

ulemu

The mwayi waukulu chipangizo izi kuti kumaonjezera kuchuluka kwa magnification zilipo. Mwachitsanzo, ngati zakuthambo aliyense eyepieces 10 mm, 18 mm, 26 mm, pamaso Barlow 2X monga lakamba zambiri izo instrumentny kupereka zipangizo izi 5 mm, 9 mamilimita ndi 13 mm. Ndi ndalama mu nkhani iyi. M'mawu ena, ndi Barlow mandala akhoza m'malo atatu a eyepiece lapansi.

zosiyanasiyana

The magalasi ambiri Barlow anali kawiri (2X). Komabe, kuwonjezera multiplier kwa deta umatulutsa mankhwala tsiku ndi yosiyanasiyana. 3x Barlow mandala ndi zachilendo, ndipo 4x, ndi 5x, ndipo akhoza kupezeka 1.5x ndi 2.5x. Pali zitsanzo ndi magnification variable kuchokera 2 3. Kusokoneza ntchito magalasi awa simungathe mokwanira mkulu kuchotsa makinawa kwambiri.

Council

Kusankha zofunika Barlow mandala kuti makinawa zilipo, chidwi ziperekedwe kwa m'mimba mwake wa ikamatera wamanja. kukula kwake kungakhale 0,965, 1,25 kapena 2 mainchesi. Izo ziyenera kukhala zofanana ndi m'mimba mwake wa focuser ndi landings eyepieces. Pofuna kupeza ziŵiri magnification ntchito Barlow 2, m'pofunika kukonza galasi pakati pa opendekera ndi eyepiece. mankhwala amenewa alidi mwambambande ayenera kudziŵa ndi Choncho tiyenera kukhala Mipikisano magawo.