{"id":58668,"date":"2022-04-30T10:57:03","date_gmt":"2022-04-30T10:57:03","guid":{"rendered":"https:\/\/thermaldevices.eu\/iray-guide-for-newbies-how-far-can-you-fire-with-a-thermal-scope\/"},"modified":"2022-04-30T10:57:03","modified_gmt":"2022-04-30T10:57:03","slug":"iray-guide-for-newbies-how-far-can-you-fire-with-a-thermal-scope","status":"publish","type":"post","link":"https:\/\/thermaldevices.eu\/lv\/iray-guide-for-newbies-how-far-can-you-fire-with-a-thermal-scope\/","title":{"rendered":"Iray rokasgr\u0101mata ies\u0101c\u0113jiem: Cik t\u0101lu var \u0161aut ar term\u0101lo t\u0101lskati?"},"content":{"rendered":"

Iray rokasgr\u0101mata ies\u0101c\u0113jiem: Cik t\u0101lu var \u0161aut ar term\u0101lo t\u0101lskati?<\/p>\n

 <\/p>\n

Cik t\u0101lu es varu \u0161aut, izmantojot Iray term\u0101lo t\u0101lm\u0113ru? Neatkar\u012bgi no t\u0101, ka gandr\u012bz visi termisko t\u0101lm\u0113ru ra\u017eot\u0101ji specifik\u0101ciju sarakst\u0101 nor\u0101da “noteik\u0161anas diapazonu”, \u0161is jaut\u0101jums tiek uzdots past\u0101v\u012bgi. Neatbilst\u012bba starp pazi\u0146oto “atkl\u0101\u0161anas att\u0101lumu” un patieso \u0161au\u0161anas att\u0101lumu da\u017e\u0101da lieluma m\u0113r\u0137iem v\u0113l vair\u0101k sare\u017e\u0123\u012b \u0161o tematu. M\u0113s nevaram pa\u013cauties tikai uz “atkl\u0101\u0161anas diapazonu”, lai noteiktu maksim\u0101lo att\u0101lumu, no kura varam \u0161aut. Iray specifik\u0101cij\u0101s ir nor\u0101d\u012bts<\/p>\n

M\u0113s fro Termisk\u0101s ier\u012bces , pie\u0146emam, ka iero\u010da efekt\u012bvais \u0161au\u0161anas diapazons ir pietiekams, jo \u0161aj\u0101 rakst\u0101 ir apl\u016bkota korel\u0101cija starp Iray termisko tv\u0113rumu un \u0161au\u0161anas diapazonu. Vispirms mums ir j\u0101defin\u0113 b\u016btisks \u0161au\u0161anas j\u0113dziens, izmantojot termisko t\u0101lskati, saska\u0146\u0101 ar \u0161o pie\u0146\u0113mumu. Apl\u016bkosim med\u012bbu gad\u012bjumu. Nekad ne\u0161aujiet, ja nezin\u0101t, kas tas ir dz\u012bvnieks vai vai ekr\u0101n\u0101 redzamais objekts ir vai nav dz\u012bvnieks. Tas ir s\u0101kotn\u0113jais temats, ko v\u0113lamies apspriest tagad: p\u0113c defin\u012bcijas karst\u0101 produkta identific\u0113\u0161ana at\u0161\u0137iras no t\u0101, vai to vienk\u0101r\u0161i apskat\u012bt.<\/p>\n

Divi t\u0101l\u0101k redzamie att\u0113li ir momentuz\u0146\u0113mumi no term\u0101l\u0101s att\u0113lveido\u0161anas klipa. Ja \u0161aujat uz c\u016bku, j\u016bs \u0161aujat tikai tad, kad esat piln\u012bgi p\u0101rliecin\u0101ts, ka m\u0113r\u0137is ir c\u016bka, k\u0101 redzams 2. att\u0113l\u0101. Bet, ja ir tikai spilgts apgabals un j\u016bs nevarat noteikt, kas tas ir, j\u016bs nekad nevarat nospiest spr\u016bda tausti\u0146u (sk. 1. att\u0113lu). T\u0101p\u0113c da\u017ei cilv\u0113ki uzskata, ka vi\u0146i nekad nevar sasniegt specifik\u0101ciju sarakst\u0101 nor\u0101d\u012bto “noteik\u0161anas diapazonu”. Ja 1. att\u0113l\u0101 tika par\u0101d\u012bts tikai spilgts apgabals, tas tiek d\u0113v\u0113ts par “noteik\u0161anas diapazonu”. 2. att\u0113l\u0101 tas tiek d\u0113v\u0113ts par “identifik\u0101cijas diapazonu”, jo m\u0113s varam at\u0161\u0137irt, kuras sugas atrodas redzes lauk\u0101.<\/p>\n

\"Iray

1. att\u0113ls: Objekta atra\u0161an\u0101s vietas noteik\u0161ana<\/span><\/p><\/div>\n

\"Iray<\/p>\n

2. att\u0113ls: Identific\u0113t objektu<\/p>\n

Vai ir iesp\u0113jams sniegt atbildi uz s\u0101kotn\u0113jo jaut\u0101jumu p\u0113c tam, kad ir apg\u016bta termisk\u0101 t\u0101lskata identifik\u0101cijas diapazona defin\u012bcija? N\u0113, ne glu\u017ei. Pie\u0146emsim, ka k\u0101ds j\u016bs inform\u0113 par to, cik t\u0101lu ir vi\u0146a termisk\u0101 t\u0101lskata identifik\u0101cijas vai atpaz\u012b\u0161anas diapazons, nezinot, kas ir m\u0113r\u0137is. \u0160\u0101d\u0101 gad\u012bjum\u0101 jums b\u016btu j\u0101jaut\u0101 tie\u0161i, jo m\u0113r\u0137a izm\u0113rs ir priek\u0161noteikums, lai var\u0113tu sniegt att\u0101luma aprakstus, kas saist\u012bti ar termisko t\u0101lm\u0113ru. Lai izvair\u012btos no p\u0101rpratumiem, kop\u0101 ar m\u0113r\u0137a izm\u0113riem ir j\u0101p\u0101rbauda atkl\u0101\u0161anas, identifik\u0101cijas un atpaz\u012b\u0161anas diapazons. Piem\u0113ram, apl\u016bkojiet zem\u0101k redzamos att\u0113lus:<\/p>\n

\"Iray<\/p>\n

1. att\u0113ls: 20 metru att\u0101lum\u0101 no m\u0113r\u0137a<\/p>\n

\"Iray<\/p>\n

1. att\u0113ls: 800 metru att\u0101lum\u0101 no m\u0113r\u0137a<\/p>\n

 <\/p>\n

1. att\u0113l\u0101 redzami divi za\u0137i 20 metru att\u0101lum\u0101, bet 2. att\u0113l\u0101 redzams govju bars 800 metru att\u0101lum\u0101. Jo liel\u0101ks ir j\u016bsu m\u0113r\u0137is, jo liel\u0101ks ir j\u016bsu t\u0101lskata atpaz\u012b\u0161anas diapazons. Tas noz\u012bm\u0113, ka j\u016bs nevar\u0113siet tr\u0101p\u012bt tru\u0161a lieluma m\u0113r\u0137im no 200 metriem, bet var\u0113siet tr\u0101p\u012bt liellopa lieluma m\u0113r\u0137im no 800 metriem.<\/p>\n

Tagad, kad tas ir apspriests, m\u0113s iepaz\u012bstin\u0101sim ar DRI k\u0101 pamatzin\u0101\u0161an\u0101m.<\/p>\n

Burts “D” apz\u012bm\u0113 atkl\u0101\u0161anu. “Atkl\u0101t” saska\u0146\u0101 ar D\u017eonsona krit\u0113riju noz\u012bm\u0113 noteikt, vai objekts tur ir vai nav. Ja uz displeja redzamais siltuma avots at\u0161\u0137iras no fona un, att\u0101linoties no t\u0101, izbal\u0113, att\u0101lums atspogu\u013co m\u0113r\u0137a noteik\u0161anas att\u0101lumu.<\/p>\n

Burts “R” noz\u012bm\u0113 “atz\u012b\u0161ana”. Termins “atpaz\u012b\u0161ana” noz\u012bm\u0113 “sp\u0113ja saskat\u012bt, k\u0101da veida priek\u0161mets tas ir”. Diapazonu, kur\u0101 var noteikt priek\u0161meta klasi, sauc par atpaz\u012b\u0161anu (transportl\u012bdzeklis, dz\u012bvnieks vai cilv\u0113ks).<\/p>\n

Burts “I” apz\u012bm\u0113 identit\u0101ti. Diapazonu, kur\u0101 var at\u0161\u0137irt klases iek\u0161ien\u0113 eso\u0161os vienumus, sauc par identifik\u0101ciju. Piem\u0113ram, atpaz\u012bstot, k\u0101da veida transportl\u012bdzeklim (furgons, apvidus automobilis vai viegl\u0101 automa\u0161\u012bna) vai vai vai persona ir vai nav milit\u0101r\u0101 dienesta darbinieks.<\/p>\n

J\u016bs, iesp\u0113jams, esat paman\u012bju\u0161i, ka term\u0101l\u0101s t\u0101lummai\u0146as uztver\u0161anas, atpaz\u012b\u0161anas un identifik\u0101cijas diapazons main\u0101s atkar\u012bb\u0101 no m\u0113r\u0137a izm\u0113riem un st\u0101vok\u013ca. M\u0113r\u0137a izm\u0113ru, tostarp identifik\u0101cijas, atpaz\u012b\u0161anas un noteik\u0161anas diapazonu, r\u016bp\u012bgs apraksts vienm\u0113r ir ieteicam\u0101ks nek\u0101 tikai noteik\u0161anas diapazona nor\u0101d\u012b\u0161ana.<\/p>\n

K\u0101di ir svar\u012bg\u0101kie aspekti, kas ietekm\u0113 termisk\u0101 t\u0101lskata noteik\u0161anas\/atpaz\u012b\u0161anas\/identifik\u0101cijas diapazonu?<\/p>\n

Objekt\u012bvs<\/p>\n

Divas galven\u0101s \u012bpa\u0161\u012bbas, kas raksturo objekt\u012bvu, ir fokusa att\u0101lums un f-skaitlis. Specifik\u0101ciju sarakst\u0101 ir viegli atrast fokusa att\u0101lumu. Jo \u0161aur\u0101ks ir redzes le\u0146\u0137is un jo t\u0101l\u0101k j\u016bs varat redz\u0113t, jo liel\u0101ks ir fokusa att\u0101lums. Liel\u0101ka diafragma (maz\u0101ka F v\u0113rt\u012bba) noz\u012bm\u0113, ka objekt\u012bvs sp\u0113j lab\u0101k uztvert infrasarkano gaismu, un ier\u012bces gal\u012bg\u0101 att\u0113la kvalit\u0101te b\u016bs augst\u0101ka.<\/p>\n

Vienk\u0101r\u0161ojiet. Fotograf\u0113jot lielos att\u0101lumos, 75 mm objekt\u012bvs vienm\u0113r ir lab\u0101ks par 50 mm objekt\u012bvu. Lai ieg\u016btu augst\u0101ku att\u0113la kvalit\u0101ti, F\/1,0 objekt\u012bvs vienm\u0113r ir lab\u0101ks par F\/1,2 objekt\u012bvu.<\/p>\n

K\u0101 piem\u0113ru apl\u016bkojiet zem\u0101k redzamos att\u0113lus:<\/p>\n

 <\/p>\n

\"Iray<\/p>\n

1. att\u0113ls: Iray<\/p>\n

\"\"<\/p>\n

Imae 2: Iray<\/p>\n

Att\u0113lam Nr. 1, kas uz\u0146emts ar ier\u012bci, kura apr\u012bkota ar 75 mm f\/1,0 objekt\u012bvu, ir liel\u0101ks pastiprin\u0101jums (7X) nek\u0101 att\u0113lam Nr. 2, kas uz\u0146emts ar ier\u012bci, kura apr\u012bkota ar 50 mm f\/1,0 objekt\u012bvu (4,5X), nezaud\u0113jot att\u0113la kvalit\u0101ti.<\/p>\n

Termiskais detektors<\/p>\n

Jo liel\u0101ku m\u0113r\u0137a uz FPA izstaroto siltuma starojuma apgabalu, jo liel\u0101ku siltuma inform\u0101ciju FPA var sav\u0101kt, jo prec\u012bz\u0101ku att\u0113lu sist\u0113ma var \u0123ener\u0113t un jo vienk\u0101r\u0161\u0101k ir atpaz\u012bt m\u0113r\u0137i. Objektam att\u0101linoties, uz FPA atstarot\u0101 m\u0113r\u0137a siltuma starojuma apgabals saruks, un pikse\u013cu piepild\u012bjuma v\u0113rt\u012bba samazin\u0101sies. M\u0113r\u0137a att\u0101lums ir identisks DRI att\u0101lumam, ja FPA pikse\u013cu skaits, ko aizpilda objekti, ir vien\u0101ds ar DRI diapazona skaitu.<\/p>\n

Ja visi p\u0101r\u0113jie ier\u012bces aspekti paliek nemain\u012bgi, detektora samazin\u0101tais pikse\u013cu solis \u013cauj FPA ievietot papildu pikse\u013cus. Piem\u0113ram, apl\u016bkojiet cilv\u0113ku. Ja 17 mikronu ier\u012bces FPA ir tikai 6 pikse\u013ci, atpaz\u012b\u0161anas diapazonam ir vajadz\u012bgi vismaz 6 pikse\u013ci. T\u0101 k\u0101 12 mikronu ier\u012bces FPA att\u0113loto pikse\u013cu skaits var b\u016bt liel\u0101ks nek\u0101 8, 12 mikronu ier\u012bcei ir liel\u0101ks atpaz\u012b\u0161anas diapazons nek\u0101 17 mikronu ier\u012bcei.<\/p>\n

 <\/p>\n

 <\/p>\n

\"\"<\/p>\n

1. att\u0113ls: 12 \u03bcm pret 17 \u03bcm<\/p>\n

 <\/p>\n

OLED, okul\u0101rs, algoritms<\/p>\n

Ener\u0123ija tiks p\u0101rraid\u012bta uz FPA, p\u0113c tam FPGA to p\u0101rveidos ciparu impulsos un visbeidzot non\u0101ks pie vair\u0101kiem sign\u0101lu apstr\u0101des procesiem. P\u0113c tam att\u0113ls tiek par\u0101d\u012bts monitor\u0101. Att\u0113la pastiprin\u0101\u0161anu ietekm\u0113 iz\u0161\u0137irtsp\u0113ja, algoritms un ekr\u0101na izm\u0113rs. Visbeidzot, displej\u0101 redzamais att\u0113ls tiek pastiprin\u0101ts, un acs to uztver caur okul\u0101ru.<\/p>\n

Secin\u0101jums<\/p>\n

\u0160au\u0161anas m\u0113r\u0137a izm\u0113ri un atra\u0161an\u0101s vieta ir j\u0101apraksta noteik\u0161anas, atpaz\u012b\u0161anas un identifik\u0101cijas att\u0101luma specifik\u0101cij\u0101s. Izmantojot tikai vienu metriku, ir sare\u017e\u0123\u012bti noteikt, cik t\u0101lu termometrs var skaidri \u0161aut. T\u0101p\u0113c, pirms nospie\u017eat spr\u016bda pogu ar term\u0101lo t\u0101lskati, p\u0101rliecinieties, ka piln\u012bb\u0101 saprotat savus m\u0113r\u0137us.<\/p>\n

\"Iray<\/p>\n

Att\u0113ls 1: 50 m, Iray<\/p>\n

\"Iray<\/p>\n

Att\u0113ls 2: 100 m, Iray<\/p>\n

 <\/p>\n

\"Iray<\/p>\n

3. att\u0113ls: 150 m Iray<\/p>\n

\"Iray4. att\u0113ls: 200 m Iray<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Iray rokasgr\u0101mata ies\u0101c\u0113jiem: Cik t\u0101lu var \u0161aut ar term\u0101lo t\u0101lskati?   Cik t\u0101lu es varu \u0161aut, izmantojot Iray term\u0101lo t\u0101lm\u0113ru?<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[856],"tags":[],"class_list":["post-58668","post","type-post","status-publish","format-standard","hentry","category-padomi-un-padomi"],"_links":{"self":[{"href":"https:\/\/thermaldevices.eu\/lv\/wp-json\/wp\/v2\/posts\/58668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thermaldevices.eu\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thermaldevices.eu\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thermaldevices.eu\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thermaldevices.eu\/lv\/wp-json\/wp\/v2\/comments?post=58668"}],"version-history":[{"count":0,"href":"https:\/\/thermaldevices.eu\/lv\/wp-json\/wp\/v2\/posts\/58668\/revisions"}],"wp:attachment":[{"href":"https:\/\/thermaldevices.eu\/lv\/wp-json\/wp\/v2\/media?parent=58668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thermaldevices.eu\/lv\/wp-json\/wp\/v2\/categories?post=58668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thermaldevices.eu\/lv\/wp-json\/wp\/v2\/tags?post=58668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}