1 必須重視儀器設備的管理和使用
儀yi器qi設she備bei的de高gao負fu荷he使shi用yong,往wang往wang容rong易yi發fa生sheng意yi外wai故gu障zhang,特te別bie是shi光guang學xue儀yi器qi若ruo因yin維wei護hu和he使shi用yong不bu當dang而er起qi霧wu,就jiu不bu能neng發fa揮hui儀yi器qi的de正zheng常chang作zuo用yong,而er帶dai來lai工gong作zuo上shang的de障zhang礙ai。所suo以yi高gao效xiao的de維wei護hu管guan理li儀yi器qi設she備bei已yi成cheng為wei當dang今jin企qi事shi業ye單dan位wei有you效xiao降jiang低di成cheng本ben,提ti高gao勞lao動dong生sheng產chan率lv的de有you效xiao手shou段duan。目mu前qian國guo內nei企qi業ye設she備bei維wei護hu管guan理li一yi般ban還hai停ting留liu在zai被bei動dong的de搶qiang修xiu作zuo業ye模mo式shi,即ji當dang儀yi器qi設she備bei發fa生sheng故gu障zhang,無wu法fa繼ji續xu使shi用yong時shi,維wei修xiu人ren員yuan才cai在zai最zui短duan時shi間jian內nei將jiang故gu障zhang排pai除chu,而er當dang沒mei有you發fa生sheng故gu障zhang時shi,維wei修xiu人ren員yuan隻zhi是shi空kong閑xian,所suo以yi這zhe樣yang的de管guan理li模mo式shi是shi談tan不bu上shang效xiao率lv的de,因yin此ci,儀yi器qi設she備bei的de管guan理li也ye應ying做zuo好hao計ji劃hua,同tong樣yang設she備bei維wei護hu管guan理li也ye需xu要yao把ba非fei計ji劃hua性xing的de工gong作zuo轉zhuan化hua為wei計ji劃hua性xing的de工gong作zuo。
如果我們定期的檢查保養來減低故障的發生,特別是做好儀器的"三防"工作,避免搶修工作,保證儀器隨時能投入正常的作用,這就是一種主動的方式。
2 注意測繪儀器的防霧
cehuiyiqizaishiyonghezhufangzhong,chuleyoushengmeixianxiangwai,wangwanghaiyouguangxuelingjiandeqiwu,yingxiangyiqidezhengchangshiyong,gukezhenduiguangxuexinqiqiwudezhuyaoyinsu,caiqufangzhicuoshi。
2.1 光學儀器起霧的原因及其危害
霧是指光學零件的拋光麵上,呈現出"露水"似的物質,這些物質有的是油質點子構成的,稱為油性霧,有的是由水珠或水與玻璃起化學反應形成堆積物構成的,稱為水性霧:有的光學零件上,兩種霧都有,叫做水油混合霧,一般的都以"露水"zhuanghuogandeduijiwucunzaiyubolibiaomianshang。youxingwutongchangfenbuzaiyuanxingguangxuelingjiandebianyuan,bingxiangzhongyangshenyan,youdezeyancashihenjifenbu,youxingwudexingchengzhuyaoshiyouzhiwuranlebolibiaomian,huoshiyouyuyouzhidekuosan,huifazaibolibiaomianningjieerzaochengde,birucashiguangxuelingjiansuoyongdefuliaohanzhilianggao,huozhesuoyongdegongjudaiyouyouzhi,yongshouzhizhijienaquhechujiguangxuelingjiandeng,douhuiyinqiyouxingwu,huozheshiguangxueyiqishangsuoyongyouzhidehuaxuewendingxingbuhao,chanshengkuosanhuoshiyongfangfabudangtuyouguoduo,youzhikuosandaoguangxuelingjianshangeryinqiyouxingwu,huozheshiyouyuyibiaoyouzhihuifaxinghenda,huichanshengyouzhizhengqierxingchengyouxingwu,haiyoudeshiyongqiyouqingxijingonglingjianshi,meiyourangqiyouchongfenfahuiganjing,jiutuyouzhuangpei。haiyoudeyongqiyouxishifangchenzhituzaijingshennei,suizheshijiandezengchanghewendudebianhua,zhexieqiyoujisuohandeqitachengfen,zhujianhuifazhiguangxuelingjianshangerxingchengyouxingwu。
水性霧是由於潮濕空氣在溫度變化下而形成,主要分布在零件的全麵積上,產生原因主要是潮濕氣體所致,但與儀器密封性能、光guang學xue玻bo璃li的de化hua學xue穩wen定ding性xing,以yi及ji玻bo璃li表biao麵mian的de清qing潔jie程cheng度du有you關guan,在zai較jiao高gao的de相xiang對dui濕shi度du下xia,黴mei菌jun易yi生sheng長chang,有you些xie黴mei菌jun生sheng長chang狀zhuang大da後hou,便bian在zai菌jun絲si體ti周zhou圍wei產chan生sheng分fen泌mi物wu,這zhe些xie分fen泌mi物wu有you的de是shi液ye狀zhuang的de,在zai液ye狀zhuang分fen泌mi物wu外wai圍wei便bian形xing成cheng水shui性xing霧wu。
不管何種原因形成的霧,由於霧滴以曲率半徑極小的球形分布於光學零件表麵上、使(shi)入(ru)射(she)光(guang)線(xian)產(chan)生(sheng)散(san)射(she)現(xian)象(xiang),除(chu)了(le)降(jiang)低(di)儀(yi)器(qi)的(de)有(you)效(xiao)透(tou)光(guang)率(lv)外(wai),並(bing)使(shi)成(cheng)象(xiang)質(zhi)量(liang)差(cha)影(ying)響(xiang)觀(guan)測(ce)。有(you)的(de)光(guang)學(xue)零(ling)件(jian)因(yin)長(chang)期(qi)起(qi)霧(wu),被(bei)腐(fu)蝕(shi)的(de)玻(bo)璃(li)表(biao)麵(mian)形(xing)成(cheng)很(hen)多(duo)微(wei)孔(kong),嚴(yan)重(zhong)的(de)會(hui)使(shi)玻(bo)璃(li)零(ling)件(jian)報(bao)廢(fei)。
光(guang)學(xue)儀(yi)器(qi)起(qi)霧(wu)不(bu)僅(jin)在(zai)我(wo)國(guo)東(dong)南(nan)地(di)區(qu)嚴(yan)重(zhong)存(cun)在(zai),就(jiu)是(shi)較(jiao)幹(gan)燥(zao)的(de)地(di)區(qu),由(you)於(yu)溫(wen)差(cha)變(bian)化(hua),也(ye)會(hui)起(qi)霧(wu),它(ta)比(bi)光(guang)學(xue)儀(yi)器(qi)生(sheng)黴(mei)的(de)影(ying)響(xiang)範(fan)圍(wei)更(geng)大(da),而(er)且(qie)更(geng)難(nan)防(fang)止(zhi)。
2.2 使用防霧材料防止儀器生霧
光學儀器的防霧材料,要求具有良好的防霧效果,又要不影響玻璃的光學性能,使用如下的憎水膜材料,可以起到很好的防霧作用。
2.2.1 使用防霧劑
caiyongyijihanqingerlvguiwanchuliduhuaxueshuangtoumohebudumodeguangxuebolilingjian,keyixingchengjiaolaogudemoceng,juyouzengshuixingneng,youjiaohaodefangshuiwuxingneng,chengmorongyi,tongshituzaiguangxuelingjianbiaomian,nenggaishanbolidejixiexingneng,zaiyidingchengdushangbaohubolibiaomianbuyicashang,tigaoleguangxuebolibiaomiandehuaxuewendingxing,liyongtalaiqingjieboli,quwunenglijiaoqiang,henrongyiqudiaoshouzhiyin,koushuiquan,tigaolegongxiao,zheshiyizhonghenhaodefangwuji。shiyongshiyongwushuiyimipeichengyijihanqingerlvguiwannongduwei0.25%-1%(重量%比)shiyong,zaishiwenxiahenkuaichengmobingguhua,caiyongqixiangfa,zhancafa,jinpaofa,qingxifajunke。shiyongfangbian,erqiebuxuyaozengjiashebei。danyaozhuyiyijihanqingerlvguiwanyouyudaiyoucijiqiwei,peizhishiwuchujipifuyuyifu,shiyongshiyiyongmianqiuhuohaimianzhanca,buyaochujijinshu,ruoyongyubudumohewukexiandeguangxuelingjian,qishiyongnongduketigaodao4%,由you於yu乙yi基ji含han氫qing二er氯lv矽gui烷wan遇yu水shui或huo吸xi潮chao後hou冒mao煙yan起qi腐fu蝕shi作zuo用yong,故gu應ying密mi封feng保bao管guan,嚴yan防fang對dui玻bo璃li與yu金jin屬shu的de腐fu蝕shi,配pei製zhi溶rong液ye時shi要yao現xian配pei現xian用yong。磷lin酸suan鹽yan玻bo璃li不bu宜yi此ci種zhong方fang法fa處chu理li。
還可采用防黴防霧劑,對硝基苯氧基乙基含氫氯矽烷,它為一種棕色液體,容易水解,將此藥品用乙醚配成5%左右濃度溶液,用離心、浸泡、擦拭方法均可成膜。
除此之外,采用乙基含氫矽油和十二烷基三甲氧基矽烷防霧劑都能有效地起到防霧作用。
2.2.2 用真空鍍膜方法,鍍聚全氟乙丙烯,這是一種惰性氟塑料,化學穩定性高,且具有耐熱、耐寒、耐nai腐fu蝕shi性xing,與yu玻bo璃li和he金jin屬shu都dou有you較jiao強qiang的de結jie合he力li,具ju有you較jiao好hao的de防fang黴mei防fang霧wu性xing能neng。不bu僅jin能neng在zai一yi般ban玻bo璃li表biao麵mian化hua學xue鍍du膜mo,氟fu化hua膜mo層ceng形xing成cheng保bao護hu膜mo,而er且qie可ke以yi在zai磷lin酸suan鹽yan玻bo璃li表biao麵mian成cheng膜mo,磷lin酸suan鹽yan玻bo璃li化hua學xue穩wen定ding性xing很hen差cha,很hen容rong易yi生sheng黴mei起qi霧wu,而er且qie用yong一yi般ban的de化hua學xue鍍du膜mo方fang法fa塗tu鍍du矽gui烷wan、矽油、guifucailiaodeng,doubunengxingchenglaogudebaohumo,zhenkongdumofangfa,xianzailinsuanyanbolibiaomiandufuhuamei,erhouzaidujujinfuyibingxi,duilinsuanyanboliyoulianghaodefangmeifangwuxiaoguo,duobeiyidelvselvpian,dabufenshilinsuanyanboli,yongzhezhongfangfachulidelvguangpian,fangmeifangwuxiaoguojiaohao。
2.2.3 采用非硫化矽橡膠密封膩子防霧
光學儀器密封性好,對於防黴防霧都有重要作用,非硫化矽橡膠密封膩,是一種非硫化醚矽橡膠,加入填充劑、著色劑、結構控製劑所組成,其密封膩高、低溫性能顯著優於原來的密封蠟,其他指標均不低於密封蠟。
2.3 設計使用中的防霧措施
2.3.1 shejiyiqishizhuyifangwu,yiqijiegouyingjiaqiangmifengxingneng,baozhengyiqizaigaowenhuodiwenqingkuangxiabujiangdimifengxingneng,yifangzhiyinlouqieryinqideshuixingwu,shejirenyuanyingdangchongfenzhuyixuanzehuaxuewendingxingnenghaodeguangxuebolihecailiao,weifangwudaxialianghaodejichu。
2.3.2 zaizhizaoheweixiuguochengzhongzhuyizhengjieshengchan,zhuangpeiheweixiudegongfangxuqingjie,bingyangezunshoucaozuoguicheng,jingxincashiguangxuelingjian,yanjinyongshouzhijiejiechuhenaquguangxuelingjian,jiachiguangxuelingjiandegongjuxujinxingtuozhichuli,caguangxuelingjiansuoyongdefujian,rumianguang、布塊、乙醇、乙醚、碘以及與光學零件接觸的有機墊片均須進行嚴格脫脂,控製含脂量,裝光學零件的器皿和盛乙醇、乙醚的瓶子,須經常清洗,保持清潔,這些都是減少油性霧的重要途徑。
2.3.3 減(jian)少(shao)儀(yi)器(qi)內(nei)部(bu)的(de)水(shui)蒸(zheng)氣(qi),防(fang)止(zhi)水(shui)蒸(zheng)氣(qi)在(zai)玻(bo)璃(li)表(biao)麵(mian)上(shang)凝(ning)結(jie),盡(jin)可(ke)能(neng)在(zai)幹(gan)燥(zao)的(de)條(tiao)件(jian)下(xia)進(jin)行(xing)裝(zhuang)配(pei)或(huo)對(dui)裝(zhuang)配(pei)好(hao)的(de)儀(yi)器(qi)進(jin)行(xing)幹(gan)燥(zao)處(chu)理(li),如(ru)充(chong)幹(gan)燥(zao)氮(dan)氣(qi)或(huo)空(kong)氣(qi)以(yi)及(ji)放(fang)置(zhi)幹(gan)燥(zao)劑(ji)。儀(yi)器(qi)在(zai)使(shi)用(yong)和(he)庫(ku)存(cun)中(zhong),盡(jin)量(liang)控(kong)製(zhi)使(shi)用(yong)環(huan)境(jing)和(he)庫(ku)房(fang)的(de)相(xiang)對(dui)濕(shi)度(du)在(zai)6%左右,對於外業儀器在使用中不好控製濕度,用後應放在通風、向陽、幹燥的地方,在儀器箱內放入幹燥劑,並注意密封和及時更換烘幹矽膠幹燥劑,在潮濕環境下,使用的內業儀器,如糾正儀、複照儀等,對於可取下來的鏡頭和精密的光學部件,用後及時取下來故人幹燥缸內加以保護,並經常保持儀器清潔,減少結霧核心。
2.3.4 合理選擇和使用油脂,光學儀器上用的各種防塵脂、runyouyouzhibixushihuifadujidihehuaxuewendingxinghaodecailiao,zaiguangxueyiqidejinshulingjianshangtuyouzhishi,shouxianyaobalingjianqingxiganjing,rangqiyouhuifawanhouzaituyouzhi,bingqieyaotujunyunerbunengguoduo,juguangxuejian10-15mm的範圍內,禁止塗潤滑油脂和防塵脂,防止油脂擴散引起油性霧。
2.3.5 tigaoguangxuebolibiaomiandehuaxuewendingxing,liyonghuaxuedumohuozhenkongdumofangfa,zaibolibiaomianduyicengzengshuimo,yitigaobolidehuaxuewendingxing,zengqiangbolidekangfushinengli,jianshaoqiwu,weilejianqingshuixingwuduiguanchadeyingxiang,yekecaiyongqinshuicailiao,dushangyicengtoumingdejuyouyidingdewulixingnengweiqinshuimo,shishuiwunengquanbusankai,junyundefensanzaimocengzhong,buyingxiangguancha,dangdaqiganzaoshi,mocengzhongdeshuifenzirandihuifadaodaqizhong。
2.3.6 除黴,除霧
光學儀器一旦生黴起霧,就造成了不良的影響,而且給修理工作帶來很多麻煩,因此,要以防為主,從儀器設計、製zhi造zao開kai始shi就jiu注zhu意yi搞gao好hao防fang黴mei防fang霧wu,儀yi器qi庫ku存cun和he使shi用yong中zhong加jia強qiang維wei護hu保bao養yang,是shi做zuo好hao防fang黴mei防fang霧wu工gong作zuo重zhong要yao保bao證zheng。而er如ru果guo儀yi器qi已yi經jing生sheng黴mei起qi霧wu,就jiu應ying及ji時shi處chu理li,以yi免mian造zao成cheng更geng大da損sun失shi。
如(ru)果(guo)霜(shuang)霧(wu)隻(zhi)在(zai)初(chu)期(qi)階(jie)段(duan),即(ji)在(zai)儀(yi)器(qi)生(sheng)黴(mei)起(qi)霧(wu)後(hou),很(hen)短(duan)的(de)時(shi)間(jian)內(nei),隻(zhi)在(zai)玻(bo)璃(li)表(biao)麵(mian)層(ceng)附(fu)蓋(gai)著(zhe)而(er)沒(mei)有(you)侵(qin)蝕(shi)玻(bo)璃(li)和(he)破(po)壞(huai)膜(mo)層(ceng)的(de)時(shi)候(hou),可(ke)以(yi)用(yong)混(hun)合(he)液(ye)擦(ca)掉(diao)。
儀yi器qi生sheng霧wu起qi霧wu後hou應ying及ji時shi處chu理li,否fou則ze時shi間jian長chang了le,就jiu會hui腐fu蝕shi光guang學xue零ling件jian的de表biao麵mian和he鍍du膜mo,甚shen至zhi於yu玻bo璃li腐fu蝕shi,應ying及ji時shi用yong一yi般ban的de混hun合he液ye或huo用yong乙yi基ji含han氫qing二er氯lv矽gui烷wan溶rong液ye擦ca洗xi,這zhe種zhong溶rong液ye即ji防fang霧wu,又you有you一yi定ding的de除chu霧wu除chu黴mei作zuo用yong。多duo倍bei儀yi的de綠lv色se濾lv光guang片pian大da部bu分fen是shi磷lin酸suan鹽yan玻bo璃li,很hen易yi起qi霧wu,而er且qie很hen難nan擦ca淨jing,可ke以yi用yong稀xi的de氨an水shui擯bin洗xi,而er後hou用yong水shui洗xi淨jing,再zai及ji時shi用yong混hun合he液ye把ba濾lv光guang片pian表biao麵mian擦ca幹gan,但dan這zhe種zhong玻bo璃li很hen不bu穩wen定ding,如ru果guo不bu用yong時shi,擦ca淨jing放fang在zai幹gan燥zao皿min內nei,或huo及ji時shi作zuo霧wu處chu理li,否fou則ze還hai會hui生sheng黴mei起qi霧wu。對dui矽gui酸suan鹽yan玻bo璃li盡jin量liang避bi免mian用yong堿jian性xing的de物wu質zhi去qu擦ca,因yin為wei堿jian對dui矽gui酸suan鹽yan類lei有you腐fu蝕shi作zuo用yong。
如果當光學零件嚴重生黴起霧,並已腐蝕了玻璃,隻有重新更換玻璃或重新把光學零件拋光。
總之光學儀器要以防為主,發現黴霧要及時除掉,除黴霧後,要及時采取防霧防黴措施,才能保護儀器使之發揮更大的作用。
3 結語
由you於yu科ke學xue技ji術shu的de飛fei速su發fa展zhan,以yi及ji世shi界jie經jing濟ji發fa展zhan的de需xu要yao,新xin的de科ke學xue技ji術shu成cheng果guo不bu斷duan應ying用yong於yu儀yi器qi設she備bei,設she備bei的de現xian代dai化hua水shui平ping不bu斷duan提ti高gao,現xian代dai化hua設she備bei正zheng朝chao著zhe高gao速su化hua,精jing密mi化hua自zi動dong化hua等deng方fang向xiang發fa展zhan,故gu要yao積ji極ji引yin進jin國guo外wai現xian代dai儀yi器qi設she備bei管guan理li的de理li論lun和he方fang法fa,探tan索suo趕gan上shang國guo際ji先xian進jin水shui平ping的de途tu徑jing,使shi光guang學xue儀yi器qi設she備bei管guan理li進jin人ren一yi個ge健jian康kang的de現xian代dai管guan理li階jie段duan。
手機版





