淺淡生物顯微鏡的維護保養及常見故障的排除及常見故障的排除
來源: 類別:實用技術 更新時間:2006-09-14 閱讀次
【本資訊由中國糧油儀器網提供】生物顯微鏡是生物教學實驗中常用的一種精密光學儀器,由機械係統和光學係統兩部分組成。
機械係統包括:鏡筒傳動部分、物鏡轉動部分、載物台、壓片夾和遮光器的轉換部分、鏡架和底座的轉動部分等。
光學係統包括:目鏡、物鏡、聚光鏡和反光鏡等。
1、 維護和保養
(1)整體保養:生物顯微鏡要放置在幹燥陰涼、無塵、無腐蝕的地方。使用後,要立即擦拭幹淨,用防塵透氣罩罩好或放在箱子內。
(2)機械係統的維護保養:使(shi)用(yong)後(hou),用(yong)幹(gan)淨(jing)細(xi)布(bu)擦(ca)淨(jing),定(ding)期(qi)在(zai)滑(hua)動(dong)部(bu)位(wei)塗(tu)些(xie)中(zhong)性(xing)潤(run)滑(hua)脂(zhi)。如(ru)有(you)嚴(yan)重(zhong)汙(wu)染(ran),可(ke)先(xian)用(yong)汽(qi)油(you)洗(xi)淨(jing)後(hou)再(zai)擦(ca)幹(gan)。但(dan)切(qie)忌(ji)用(yong)酒(jiu)精(jing)或(huo)乙(yi)醚(mi)清(qing)洗(xi),因(yin)為(wei)這(zhe)些(xie)試(shi)劑(ji)會(hui)腐(fu)蝕(shi)機(ji)械(xie)和(he)油(you)漆(qi),造(zao)成(cheng)損(sun)壞(huai)。
(3)光學係統的維護保養:使shi用yong後hou,用yong幹gan淨jing柔rou軟ruan的de綢chou布bu輕qing輕qing擦ca拭shi目mu鏡jing和he物wu鏡jing的de鏡jing片pian。有you擦ca不bu掉diao的de汙wu跡ji時shi,可ke用yong長chang纖xian維wei脫tuo脂zhi棉mian或huo幹gan淨jing的de細xi棉mian布bu蘸zhan少shao些xie二er甲jia笨ben或huo鏡jing頭tou清qing洗xi液ye(3份酒精∶1份乙醚)擦ca拭shi。然ran後hou用yong幹gan淨jing細xi軟ruan的de綢chou布bu擦ca幹gan或huo用yong吹chui風feng球qiu吹chui幹gan即ji可ke。要yao注zhu意yi的de是shi清qing洗xi液ye千qian萬wan不bu能neng滲shen入ru到dao物wu鏡jing鏡jing片pian內nei部bu,否fou則ze會hui損sun壞huai物wu鏡jing鏡jing片pian。聚ju光guang鏡jing(XSP-13A、16A型才有)和反光鏡用後隻要擦幹淨就可以了。
2、 常見故障的排除
(1)鏡筒的自行下滑:這是生物顯微鏡經常發生的故障之一。對於軸套式結構的顯微鏡解決的辦法可分兩步進行。
第一步:yongshuangshoufenbiewozhulianggecutiaoshoulun,xiangduiyonglixuanjin。kannengfoujiejuewenti,ruohaibunengjiejuewenti,zeyaoyongzhuanyongdeshuangzhubanshoubayigecutiaoshoulunxuanxia,jiayipianmocapian,shoulunningjinhou,ruguozhuandonghenfeijin,zejiademocapiantaihoule,ketiaohuanyipianbode。yishoulunzhuandongbufeili,jingtongshangxiayidongqingsong,eryoubuzixingxiahuaweizhun。mocapiankeyongfeizhaoxiangdipianhexiaoyu1毫米厚的軟塑料片用打孔器衝製。
第二步:jianzhacutiaoshoulunzhoushangdechilunyujingtongshenshangdechitiaoniehezhuangtai。jingtongdeshangxiayidongshiyouchilundaidongchitiaolaiwanchengde。chilunyuchitiaodezuijianiehezhuangtaizaililunshangjiangshichitiaodefenduxianyuchilundefenduyuanxiangqie。zaizhezhongzhuangtaixia,chilunzhuandongqingsong,bingqieduichitiaodemosunzuixiexianzaiyouyizhongcuowudezuofa,jiushizaichitiaohoujiadianpian,shichitiaojinjindiyazhuchilunlaizuzhijingtongdexiahua。zheshichitiaodefenduxianyuchilundefenduyuanxiangjiao,chilunhechitiaodechijiandoujinjindidingzhuduifangdechigen。dangchilunzhuandongshi,xianghujianhuichanshengyanzhongdemoxue。youyuchitiaoshitongzhicailiaode,chilunshigangzhicailiaode。suoyixianghujiandemoxue,huibachitiaoshangdeyachimosunhuai,chilunhechitiaoshanghuichanshengxuduotongxie。zuihouchitiaohuiyanzhongmosunerwufashiyong。yinciqianwanbunengyongdiangaochitiaolaizuzhijingtongxiahua。jiejuejingtongzixingxiahuadewenti,zhinengyongjiadacutiaoshoulunhepianxinzhoutaojiandemocalilaishixian。danyouyizhongqingkuangliwai,najiushichitiaodefenduxianyuchilundefenduyuanxiangli。zheshizhuandongcutiaoshoulunshi,tongyanghuichanshengkongzhuandahuadexianxiang,yingxiangjingtongdeshangxiayidong。ruguozhetongguotiaozhengcutiaoshoulundepianxinzhoutao,wufatiaozhengchilunyuchitiaodeniehejuli。zezhinengzaichitiaohoujiadianshidangdebopianlaijiejue。jiadianpiantiaozhenghaochilunyuchitiaoniehejulidebiaozhunshi:轉動粗調手輪不費勁,但也不空轉低采舷亂貧崴勺勻紓頁萋鍾氤萏跎銜尥疾羆選?
調tiao整zheng好hao距ju離li後hou,在zai齒chi輪lun與yu齒chi條tiao間jian加jia一yi些xie中zhong性xing潤run滑hua脂zhi。讓rang鏡jing筒tong上shang下xia移yi動dong幾ji下xia即ji可ke以yi了le。最zui後hou還hai須xu把ba偏pian心xin軸zhou套tao上shang的de兩liang隻zhi壓ya緊jin螺luo絲si旋xuan緊jin。不bu然ran的de話hua,轉zhuan動dong粗cu調tiao手shou輪lun時shi,偏pian心xin軸zhou套tao可ke能neng會hui跟gen著zhe轉zhuan動dong,而er把ba齒chi條tiao卡ka死si,使shi鏡jing簡jian無wu法fa上shang下xia移yi動dong。這zhe時shi如ru果guo轉zhuan動dong粗cu調tiao手shou輪lun力li量liang過guo大da的de話hua,可ke能neng會hui損sun壞huai齒chi條tiao和he偏pian心xin軸zhou套tao。在zai旋xuan緊jin壓ya緊jin螺luo絲si後hou,如ru果guo發fa現xian偏pian心xin軸zhou套tao還hai是shi跟gen著zhe轉zhuan的de話hua。這zhe是shi由you於yu壓ya緊jin螺luo絲si的de螺luo絲si孔kong螺luo紋wen沒mei有you改gai好hao所suo造zao成cheng的de。因yin為wei廠chang家jia改gai螺luo紋wen是shi用yong機ji器qi改gai絲si的de,往wang往wang會hui有you一yi到dao二er牙ya螺luo紋wen沒mei改gai到dao位wei。這zhe時shi即ji使shi壓ya緊jin螺luo絲si也ye旋xuan不bu到dao位wei,偏pian心xin軸zhou套tao也ye就jiu壓ya不bu緊jin了le。發fa現xian這zhe種zhong故gu障zhang,隻zhi要yao用yongM3的絲攻把螺絲孔的螺紋攻穿就能解決問題。我用此方法徹底解決了我校30台生物顯微鏡偏心軸套跟轉的問題。
把以上這些步驟都一一做好後,鏡筒自行下滑問題基本上是徹底解決了。
2物鏡轉換器轉動困難或定位失靈:轉換器轉動困難可能是固定螺絲太緊。使轉動困難,並會損壞零件。太鬆,裏麵的軸承彈珠就會脫離軌道,擠在一起,同樣使轉動困難;另(ling)外(wai)彈(dan)珠(zhu)很(hen)可(ke)能(neng)跑(pao)到(dao)外(wai)麵(mian)來(lai),彈(dan)珠(zhu)的(de)直(zhi)徑(jing)僅(jin)有(you)一(yi)毫(hao)米(mi),很(hen)容(rong)易(yi)遺(yi)失(shi)。固(gu)定(ding)螺(luo)絲(si)的(de)鬆(song)緊(jin)程(cheng)度(du)以(yi)轉(zhuan)換(huan)器(qi)在(zai)轉(zhuan)動(dong)時(shi)輕(qing)鬆(song)自(zi)如(ru),垂(chui)直(zhi)方(fang)向(xiang)沒(mei)有(you)鬆(song)動(dong)的(de)間(jian)隙(xi)為(wei)準(zhun)。調(tiao)整(zheng)好(hao)固(gu)定(ding)螺(luo)絲(si)後(hou),應(ying)隨(sui)即(ji)把(ba)鎖(suo)定(ding)螺(luo)絲(si)鎖(suo)緊(jin)。不(bu)然(ran)的(de)話(hua),轉(zhuan)換(huan)器(qi)轉(zhuan)動(dong)後(hou),又(you)會(hui)發(fa)生(sheng)問(wen)題(ti)。
轉換器定位失靈有時可能是定位簧片斷裂或彈性變形而造成。一般隻要更換簧片就行了。
3遮光器定位失靈:zhekenengshizheguangqigudingluositaisong,dingweidanzhutaochudingweikongzaocheng。zhiyaobadanzhufanghuidingweikongnei,xuanjingudingluosijiuxingle。ruguoxuanjinhou,zheguangqizhuandongkunnan,zexuzaizheguangbanyuzaiwutaijianjiayigedianquan。dianquandehouboyiluosixuanjinhou,zheguangqizhuandongqingsong,dingweidanzhubuwaitao,zheguangqidingweizhengqueweijia。
4鏡架鏡臀傾斜時固定不住:這zhe是shi鏡jing架jia和he底di座zuo的de連lian接jie螺luo絲si鬆song動dong所suo致zhi。可ke用yong專zhuan用yong的de雙shuang頭tou板ban手shou或huo用yong尖jian咀ju鉗qian卡ka住zhu雙shuang眼yan螺luo母mu的de兩liang個ge孔kong眼yan用yong力li旋xuan緊jin即ji可ke。如ru旋xuan緊jin後hou不bu解jie決jue問wen題ti,則ze需xu在zai螺luo母mu裏li加jia墊dian適shi當dang的de墊dian片pian來lai解jie決jue。
5目鏡、物鏡的鏡片被汙染或黴變:大部分顯微鏡使用一段時間後都會產生鏡片的外麵被沾汙或發生黴變。尤其是高倍物鏡40x,在做《觀察植物細胞的質壁分離與複原》實shi驗yan時shi,極ji容rong易yi被bei糖tang液ye汙wu染ran。如ru鏡jing頭tou被bei汙wu染ran不bu及ji時shi清qing洗xi幹gan淨jing就jiu會hui發fa生sheng黴mei變bian。處chu理li的de辦ban法fa是shi先xian用yong幹gan淨jing柔rou軟ruan的de綢chou布bu蘸zhan溫wen水shui清qing洗xi掉diao糖tang液ye等deng汙wu染ran物wu,後hou用yong幹gan綢chou布bu擦ca幹gan,再zai用yong長chang纖xian維wei脫tuo脂zhi棉mian蘸zhan些xie鏡jing頭tou清qing洗xi液ye清qing洗xi,最zui後hou用yong吹chui風feng球qiu吹chui幹gan。要yao注zhu意yi的de是shi清qing洗xi液ye千qian萬wan不bu能neng滲shen入ru到dao物wu鏡jing鏡jing片pian內nei部bu。因yin為wei為wei了le達da到dao所suo需xu要yao的de放fang大da倍bei數shu,高gao倍bei物wu鏡jing的de鏡jing片pian,需xu要yao緊jin緊jin地di膠jiao接jie在zai一yi起qi。膠jiao是shi透tou明ming的de,且qie非fei常chang暴bao一yi旦dan這zhe層ceng膠jiao被bei酒jiu精jing、乙醚等溶劑溶解後,光線通過這兩片鏡片時,光路就會發生變化。觀察效果會受到很大影響。所以在清洗時不要讓酒精、乙醚等溶劑滲入到物鏡鏡片的內部。 若是目鏡、物wu鏡jing鏡jing頭tou內nei部bu的de鏡jing片pian被bei汙wu染ran或huo黴mei變bian,就jiu必bi須xu拆chai開kai清qing洗xi。目mu鏡jing可ke直zhi接jie擰ning開kai拆chai下xia後hou進jin行xing清qing洗xi。但dan物wu鏡jing的de結jie構gou較jiao複fu雜za,鏡jing片pian的de疊die放fang,各ge鏡jing片pian間jian的de距ju離li都dou有you非fei常chang嚴yan格ge的de要yao求qiu,精jing度du也ye很hen高gao。生sheng產chan廠chang家jia在zai裝zhuang配pei時shi是shi經jing過guo精jing確que校xiao正zheng而er定ding位wei的de。所suo以yi拆chai開kai清qing洗xi幹gan淨jing後hou,必bi須xu嚴yan格ge按an原yuan樣yang裝zhuang配pei好hao。
生(sheng)物(wu)顯(xian)微(wei)鏡(jing)的(de)鏡(jing)片(pian)都(dou)是(shi)用(yong)精(jing)密(mi)加(jia)工(gong)過(guo)的(de)光(guang)學(xue)玻(bo)璃(li)片(pian)製(zhi)成(cheng)的(de),為(wei)了(le)增(zeng)加(jia)透(tou)光(guang)率(lv),都(dou)需(xu)在(zai)光(guang)學(xue)玻(bo)璃(li)片(pian)的(de)兩(liang)麵(mian)塗(tu)上(shang)一(yi)層(ceng)很(hen)薄(bo)的(de)透(tou)光(guang)膜(mo)。這(zhe)樣(yang)透(tou)光(guang)率(lv)就(jiu)可(ke)以(yi)達(da)到(dao)97%—98%。zheyicengtouguangmobiaomianhenpingzhengguanghua,qiehenbaoyidantouguangmobiaomianbeicashangliuyouhenji,tadetouguanglvjiuhuishoudaohendayingxiang。guanchashihuibiandemohubuqing。suoyizaicashijingpianshi,yidingyaoyongganjingrouruandechoubuhuoganjingmaobiqingqingcashi,ruoyongcajingzhicashizegengyaoqingqingcashi,yimiansunshangtouguangmo。
綜上所述,對於生物顯微鏡的維護保養,隻要做到防塵、防潮、防熱、防腐蝕。用後及時清洗擦拭幹淨,並定期在有關部位加注中性潤滑油脂即可。對於一些結構複雜,裝配精密的零部件,如果沒有—定的專業知識,一定的技能和專用工具,就不能擅自拆裝,以免損壞零部件。
我校有60多台新舊生物顯微鏡。多年來,完好率一直保持100%,在(zai)生(sheng)物(wu)實(shi)驗(yan)教(jiao)學(xue)中(zhong),保(bao)證(zheng)每(mei)個(ge)學(xue)生(sheng)單(dan)獨(du)使(shi)用(yong)一(yi)台(tai)顯(xian)微(wei)鏡(jing)進(jin)行(xing)獨(du)立(li)操(cao)作(zuo)與(yu)觀(guan)察(cha)。不(bu)僅(jin)大(da)大(da)提(ti)高(gao)了(le)學(xue)生(sheng)對(dui)生(sheng)物(wu)實(shi)驗(yan)教(jiao)學(xue)的(de)興(xing)趣(qu),更(geng)強(qiang)化(hua)了(le)對(dui)學(xue)生(sheng)的(de)獨(du)立(li)操(cao)作(zuo)能(neng)力(li)的(de)訓(xun)練(lian),對(dui)提(ti)高(gao)學(xue)生(sheng)的(de)全(quan)麵(mian)素(su)質(zhi)發(fa)揮(hui)了(le)積(ji)極(ji)的(de)作(zuo)用(yong)。
機械係統包括:鏡筒傳動部分、物鏡轉動部分、載物台、壓片夾和遮光器的轉換部分、鏡架和底座的轉動部分等。
光學係統包括:目鏡、物鏡、聚光鏡和反光鏡等。
1、 維護和保養
(1)整體保養:生物顯微鏡要放置在幹燥陰涼、無塵、無腐蝕的地方。使用後,要立即擦拭幹淨,用防塵透氣罩罩好或放在箱子內。
(2)機械係統的維護保養:使(shi)用(yong)後(hou),用(yong)幹(gan)淨(jing)細(xi)布(bu)擦(ca)淨(jing),定(ding)期(qi)在(zai)滑(hua)動(dong)部(bu)位(wei)塗(tu)些(xie)中(zhong)性(xing)潤(run)滑(hua)脂(zhi)。如(ru)有(you)嚴(yan)重(zhong)汙(wu)染(ran),可(ke)先(xian)用(yong)汽(qi)油(you)洗(xi)淨(jing)後(hou)再(zai)擦(ca)幹(gan)。但(dan)切(qie)忌(ji)用(yong)酒(jiu)精(jing)或(huo)乙(yi)醚(mi)清(qing)洗(xi),因(yin)為(wei)這(zhe)些(xie)試(shi)劑(ji)會(hui)腐(fu)蝕(shi)機(ji)械(xie)和(he)油(you)漆(qi),造(zao)成(cheng)損(sun)壞(huai)。
(3)光學係統的維護保養:使shi用yong後hou,用yong幹gan淨jing柔rou軟ruan的de綢chou布bu輕qing輕qing擦ca拭shi目mu鏡jing和he物wu鏡jing的de鏡jing片pian。有you擦ca不bu掉diao的de汙wu跡ji時shi,可ke用yong長chang纖xian維wei脫tuo脂zhi棉mian或huo幹gan淨jing的de細xi棉mian布bu蘸zhan少shao些xie二er甲jia笨ben或huo鏡jing頭tou清qing洗xi液ye(3份酒精∶1份乙醚)擦ca拭shi。然ran後hou用yong幹gan淨jing細xi軟ruan的de綢chou布bu擦ca幹gan或huo用yong吹chui風feng球qiu吹chui幹gan即ji可ke。要yao注zhu意yi的de是shi清qing洗xi液ye千qian萬wan不bu能neng滲shen入ru到dao物wu鏡jing鏡jing片pian內nei部bu,否fou則ze會hui損sun壞huai物wu鏡jing鏡jing片pian。聚ju光guang鏡jing(XSP-13A、16A型才有)和反光鏡用後隻要擦幹淨就可以了。
2、 常見故障的排除
(1)鏡筒的自行下滑:這是生物顯微鏡經常發生的故障之一。對於軸套式結構的顯微鏡解決的辦法可分兩步進行。
第一步:yongshuangshoufenbiewozhulianggecutiaoshoulun,xiangduiyonglixuanjin。kannengfoujiejuewenti,ruohaibunengjiejuewenti,zeyaoyongzhuanyongdeshuangzhubanshoubayigecutiaoshoulunxuanxia,jiayipianmocapian,shoulunningjinhou,ruguozhuandonghenfeijin,zejiademocapiantaihoule,ketiaohuanyipianbode。yishoulunzhuandongbufeili,jingtongshangxiayidongqingsong,eryoubuzixingxiahuaweizhun。mocapiankeyongfeizhaoxiangdipianhexiaoyu1毫米厚的軟塑料片用打孔器衝製。
第二步:jianzhacutiaoshoulunzhoushangdechilunyujingtongshenshangdechitiaoniehezhuangtai。jingtongdeshangxiayidongshiyouchilundaidongchitiaolaiwanchengde。chilunyuchitiaodezuijianiehezhuangtaizaililunshangjiangshichitiaodefenduxianyuchilundefenduyuanxiangqie。zaizhezhongzhuangtaixia,chilunzhuandongqingsong,bingqieduichitiaodemosunzuixiexianzaiyouyizhongcuowudezuofa,jiushizaichitiaohoujiadianpian,shichitiaojinjindiyazhuchilunlaizuzhijingtongdexiahua。zheshichitiaodefenduxianyuchilundefenduyuanxiangjiao,chilunhechitiaodechijiandoujinjindidingzhuduifangdechigen。dangchilunzhuandongshi,xianghujianhuichanshengyanzhongdemoxue。youyuchitiaoshitongzhicailiaode,chilunshigangzhicailiaode。suoyixianghujiandemoxue,huibachitiaoshangdeyachimosunhuai,chilunhechitiaoshanghuichanshengxuduotongxie。zuihouchitiaohuiyanzhongmosunerwufashiyong。yinciqianwanbunengyongdiangaochitiaolaizuzhijingtongxiahua。jiejuejingtongzixingxiahuadewenti,zhinengyongjiadacutiaoshoulunhepianxinzhoutaojiandemocalilaishixian。danyouyizhongqingkuangliwai,najiushichitiaodefenduxianyuchilundefenduyuanxiangli。zheshizhuandongcutiaoshoulunshi,tongyanghuichanshengkongzhuandahuadexianxiang,yingxiangjingtongdeshangxiayidong。ruguozhetongguotiaozhengcutiaoshoulundepianxinzhoutao,wufatiaozhengchilunyuchitiaodeniehejuli。zezhinengzaichitiaohoujiadianshidangdebopianlaijiejue。jiadianpiantiaozhenghaochilunyuchitiaoniehejulidebiaozhunshi:轉動粗調手輪不費勁,但也不空轉低采舷亂貧崴勺勻紓頁萋鍾氤萏跎銜尥疾羆選?
調tiao整zheng好hao距ju離li後hou,在zai齒chi輪lun與yu齒chi條tiao間jian加jia一yi些xie中zhong性xing潤run滑hua脂zhi。讓rang鏡jing筒tong上shang下xia移yi動dong幾ji下xia即ji可ke以yi了le。最zui後hou還hai須xu把ba偏pian心xin軸zhou套tao上shang的de兩liang隻zhi壓ya緊jin螺luo絲si旋xuan緊jin。不bu然ran的de話hua,轉zhuan動dong粗cu調tiao手shou輪lun時shi,偏pian心xin軸zhou套tao可ke能neng會hui跟gen著zhe轉zhuan動dong,而er把ba齒chi條tiao卡ka死si,使shi鏡jing簡jian無wu法fa上shang下xia移yi動dong。這zhe時shi如ru果guo轉zhuan動dong粗cu調tiao手shou輪lun力li量liang過guo大da的de話hua,可ke能neng會hui損sun壞huai齒chi條tiao和he偏pian心xin軸zhou套tao。在zai旋xuan緊jin壓ya緊jin螺luo絲si後hou,如ru果guo發fa現xian偏pian心xin軸zhou套tao還hai是shi跟gen著zhe轉zhuan的de話hua。這zhe是shi由you於yu壓ya緊jin螺luo絲si的de螺luo絲si孔kong螺luo紋wen沒mei有you改gai好hao所suo造zao成cheng的de。因yin為wei廠chang家jia改gai螺luo紋wen是shi用yong機ji器qi改gai絲si的de,往wang往wang會hui有you一yi到dao二er牙ya螺luo紋wen沒mei改gai到dao位wei。這zhe時shi即ji使shi壓ya緊jin螺luo絲si也ye旋xuan不bu到dao位wei,偏pian心xin軸zhou套tao也ye就jiu壓ya不bu緊jin了le。發fa現xian這zhe種zhong故gu障zhang,隻zhi要yao用yongM3的絲攻把螺絲孔的螺紋攻穿就能解決問題。我用此方法徹底解決了我校30台生物顯微鏡偏心軸套跟轉的問題。
把以上這些步驟都一一做好後,鏡筒自行下滑問題基本上是徹底解決了。
2物鏡轉換器轉動困難或定位失靈:轉換器轉動困難可能是固定螺絲太緊。使轉動困難,並會損壞零件。太鬆,裏麵的軸承彈珠就會脫離軌道,擠在一起,同樣使轉動困難;另(ling)外(wai)彈(dan)珠(zhu)很(hen)可(ke)能(neng)跑(pao)到(dao)外(wai)麵(mian)來(lai),彈(dan)珠(zhu)的(de)直(zhi)徑(jing)僅(jin)有(you)一(yi)毫(hao)米(mi),很(hen)容(rong)易(yi)遺(yi)失(shi)。固(gu)定(ding)螺(luo)絲(si)的(de)鬆(song)緊(jin)程(cheng)度(du)以(yi)轉(zhuan)換(huan)器(qi)在(zai)轉(zhuan)動(dong)時(shi)輕(qing)鬆(song)自(zi)如(ru),垂(chui)直(zhi)方(fang)向(xiang)沒(mei)有(you)鬆(song)動(dong)的(de)間(jian)隙(xi)為(wei)準(zhun)。調(tiao)整(zheng)好(hao)固(gu)定(ding)螺(luo)絲(si)後(hou),應(ying)隨(sui)即(ji)把(ba)鎖(suo)定(ding)螺(luo)絲(si)鎖(suo)緊(jin)。不(bu)然(ran)的(de)話(hua),轉(zhuan)換(huan)器(qi)轉(zhuan)動(dong)後(hou),又(you)會(hui)發(fa)生(sheng)問(wen)題(ti)。
轉換器定位失靈有時可能是定位簧片斷裂或彈性變形而造成。一般隻要更換簧片就行了。
3遮光器定位失靈:zhekenengshizheguangqigudingluositaisong,dingweidanzhutaochudingweikongzaocheng。zhiyaobadanzhufanghuidingweikongnei,xuanjingudingluosijiuxingle。ruguoxuanjinhou,zheguangqizhuandongkunnan,zexuzaizheguangbanyuzaiwutaijianjiayigedianquan。dianquandehouboyiluosixuanjinhou,zheguangqizhuandongqingsong,dingweidanzhubuwaitao,zheguangqidingweizhengqueweijia。
4鏡架鏡臀傾斜時固定不住:這zhe是shi鏡jing架jia和he底di座zuo的de連lian接jie螺luo絲si鬆song動dong所suo致zhi。可ke用yong專zhuan用yong的de雙shuang頭tou板ban手shou或huo用yong尖jian咀ju鉗qian卡ka住zhu雙shuang眼yan螺luo母mu的de兩liang個ge孔kong眼yan用yong力li旋xuan緊jin即ji可ke。如ru旋xuan緊jin後hou不bu解jie決jue問wen題ti,則ze需xu在zai螺luo母mu裏li加jia墊dian適shi當dang的de墊dian片pian來lai解jie決jue。
5目鏡、物鏡的鏡片被汙染或黴變:大部分顯微鏡使用一段時間後都會產生鏡片的外麵被沾汙或發生黴變。尤其是高倍物鏡40x,在做《觀察植物細胞的質壁分離與複原》實shi驗yan時shi,極ji容rong易yi被bei糖tang液ye汙wu染ran。如ru鏡jing頭tou被bei汙wu染ran不bu及ji時shi清qing洗xi幹gan淨jing就jiu會hui發fa生sheng黴mei變bian。處chu理li的de辦ban法fa是shi先xian用yong幹gan淨jing柔rou軟ruan的de綢chou布bu蘸zhan溫wen水shui清qing洗xi掉diao糖tang液ye等deng汙wu染ran物wu,後hou用yong幹gan綢chou布bu擦ca幹gan,再zai用yong長chang纖xian維wei脫tuo脂zhi棉mian蘸zhan些xie鏡jing頭tou清qing洗xi液ye清qing洗xi,最zui後hou用yong吹chui風feng球qiu吹chui幹gan。要yao注zhu意yi的de是shi清qing洗xi液ye千qian萬wan不bu能neng滲shen入ru到dao物wu鏡jing鏡jing片pian內nei部bu。因yin為wei為wei了le達da到dao所suo需xu要yao的de放fang大da倍bei數shu,高gao倍bei物wu鏡jing的de鏡jing片pian,需xu要yao緊jin緊jin地di膠jiao接jie在zai一yi起qi。膠jiao是shi透tou明ming的de,且qie非fei常chang暴bao一yi旦dan這zhe層ceng膠jiao被bei酒jiu精jing、乙醚等溶劑溶解後,光線通過這兩片鏡片時,光路就會發生變化。觀察效果會受到很大影響。所以在清洗時不要讓酒精、乙醚等溶劑滲入到物鏡鏡片的內部。 若是目鏡、物wu鏡jing鏡jing頭tou內nei部bu的de鏡jing片pian被bei汙wu染ran或huo黴mei變bian,就jiu必bi須xu拆chai開kai清qing洗xi。目mu鏡jing可ke直zhi接jie擰ning開kai拆chai下xia後hou進jin行xing清qing洗xi。但dan物wu鏡jing的de結jie構gou較jiao複fu雜za,鏡jing片pian的de疊die放fang,各ge鏡jing片pian間jian的de距ju離li都dou有you非fei常chang嚴yan格ge的de要yao求qiu,精jing度du也ye很hen高gao。生sheng產chan廠chang家jia在zai裝zhuang配pei時shi是shi經jing過guo精jing確que校xiao正zheng而er定ding位wei的de。所suo以yi拆chai開kai清qing洗xi幹gan淨jing後hou,必bi須xu嚴yan格ge按an原yuan樣yang裝zhuang配pei好hao。
生(sheng)物(wu)顯(xian)微(wei)鏡(jing)的(de)鏡(jing)片(pian)都(dou)是(shi)用(yong)精(jing)密(mi)加(jia)工(gong)過(guo)的(de)光(guang)學(xue)玻(bo)璃(li)片(pian)製(zhi)成(cheng)的(de),為(wei)了(le)增(zeng)加(jia)透(tou)光(guang)率(lv),都(dou)需(xu)在(zai)光(guang)學(xue)玻(bo)璃(li)片(pian)的(de)兩(liang)麵(mian)塗(tu)上(shang)一(yi)層(ceng)很(hen)薄(bo)的(de)透(tou)光(guang)膜(mo)。這(zhe)樣(yang)透(tou)光(guang)率(lv)就(jiu)可(ke)以(yi)達(da)到(dao)97%—98%。zheyicengtouguangmobiaomianhenpingzhengguanghua,qiehenbaoyidantouguangmobiaomianbeicashangliuyouhenji,tadetouguanglvjiuhuishoudaohendayingxiang。guanchashihuibiandemohubuqing。suoyizaicashijingpianshi,yidingyaoyongganjingrouruandechoubuhuoganjingmaobiqingqingcashi,ruoyongcajingzhicashizegengyaoqingqingcashi,yimiansunshangtouguangmo。
綜上所述,對於生物顯微鏡的維護保養,隻要做到防塵、防潮、防熱、防腐蝕。用後及時清洗擦拭幹淨,並定期在有關部位加注中性潤滑油脂即可。對於一些結構複雜,裝配精密的零部件,如果沒有—定的專業知識,一定的技能和專用工具,就不能擅自拆裝,以免損壞零部件。
我校有60多台新舊生物顯微鏡。多年來,完好率一直保持100%,在(zai)生(sheng)物(wu)實(shi)驗(yan)教(jiao)學(xue)中(zhong),保(bao)證(zheng)每(mei)個(ge)學(xue)生(sheng)單(dan)獨(du)使(shi)用(yong)一(yi)台(tai)顯(xian)微(wei)鏡(jing)進(jin)行(xing)獨(du)立(li)操(cao)作(zuo)與(yu)觀(guan)察(cha)。不(bu)僅(jin)大(da)大(da)提(ti)高(gao)了(le)學(xue)生(sheng)對(dui)生(sheng)物(wu)實(shi)驗(yan)教(jiao)學(xue)的(de)興(xing)趣(qu),更(geng)強(qiang)化(hua)了(le)對(dui)學(xue)生(sheng)的(de)獨(du)立(li)操(cao)作(zuo)能(neng)力(li)的(de)訓(xun)練(lian),對(dui)提(ti)高(gao)學(xue)生(sheng)的(de)全(quan)麵(mian)素(su)質(zhi)發(fa)揮(hui)了(le)積(ji)極(ji)的(de)作(zuo)用(yong)。
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