(?) (?)
重(Zhong)庆(Qing)二(?)手(Shou)直(Zhi)读(Du)光(Guang)谱(Pu)仪(Yi)的(De)全(Quan)称(Cheng)是(Shi)火(Huo)花(Hua)光(Guang)电(Dian)直(Zhi)读(Du)光(Guang)谱(Pu)仪(Yi),(?)它(Ta)的(De)原(Yuan)理(Li)是(Shi),(?)待(Dai)测(Ce)物(Wu)品(Pin)经(Jing)过(Guo)电(Dian)火(Huo)花(Hua)或(Huo)者(Zhe)说(Shuo)电(Dian)弧(Hu)的(De)激(Ji)发(Fa),(?)从(Cong)固(Gu)态(Tai)直(Zhi)接(Jie)汽(Qi)化(Hua),(?)称(Cheng)为(Wei)原(Yuan)子(Zi)蒸(Zheng)汽(Qi),(?)经(Jing)过(Guo)电(Dian)弧(Hu)火(Huo)花(Hua)原(Yuan)子(Zi)的(De)内(Nei)部(Bu)发(Fa)生(Sheng)了(Liao)一(Yi)系(Xi)列(Lie)反(Fan)应(Ying),(?)各(Ge)元(Yuan)素(Su)发(Fa)射(She)出(Chu)特(Te)征(Zheng)波(Bo)长(Chang),(?)这(Zhe)些(Xie)波(Bo)长(Chang)经(Jing)过(Guo)分(Fen)光(Guang),(?)再(Zai)经(Jing)过(Guo)感(Gan)光(Guang)元(Yuan)件(Jian),(?)被(Bei)检(Jian)测(Ce)到(Dao),(?)进(Jin)行(Xing)模(Mo)数(Shu)转(Zhuan)换(Huan),(?)从(Cong)光(Guang)信(Xin)号(Hao)变(Bian)成(Cheng)电(Dian)信(Xin)号(Hao),(?)后(Hou)经(Jing)过(Guo)计(Ji)算(Suan)机(Ji)的(De)一(Yi)系(Xi)列(Lie)计(Ji)算(Suan),(?)得(De)到(Dao)元(Yuan)素(Su)的(De)百(Bai)分(Fen)比(Bi)含(Han)量(Liang),(?)这(Zhe)个(Ge)过(Guo)程(Cheng)是(Shi)直(Zhi)读(Du)光(Guang)谱(Pu)仪(Yi)的(De)原(Yuan)理(Li),(?)把(Ba)后(Hou)的(De)结(Jie)果(Guo)打(Da)印(Yin)出(Chu)来(Lai)。(?)
(?) (?)重(Zhong)庆(Qing)二(?)手(Shou)直(Zhi)读(Du)光(Guang)谱(Pu)仪(Yi)的(De)测(Ce)光(Guang)原(Yuan)理(Li)是(Shi)怎(Zen)么(Me)样(Yang)的(De)呢(Ne)?(?)
(?) (?)激(Ji)发(Fa)光(Guang)源(Yuan)的(De)主(Zhu)电(Dian)路(Lu)接(Jie)通(Tong)之(Zhi)后(Hou),(?)发(Fa)生(Sheng)高(Gao)频(Pin)振(Zhen)荡(Dang)。(?)被(Bei)测(Ce)样(Yang)品(Pin)和(He)电(Dian)极(Ji)之(Zhi)间(Jian)产(Chan)生(Sheng)火(Huo)花(Hua)。(?)样(Yang)品(Pin)经(Jing)光(Guang)源(Yuan)激(Ji)发(Fa)而(?)发(Fa)出(Chu)的(De)光(Guang),(?)经(Jing)聚(Ju)光(Guang)镜(Jing)聚(Ju)光(Guang)后(Hou)照(Zhao)射(She)到(Dao)入(Ru)射(She)狭(Xia)缝(Feng)上(Shang),(?)通(Tong)过(Guo)入(Ru)缝(Feng)的(De)光(Guang)照(Zhao)射(She)到(Dao)凹(Ao)面(Mian)光(Guang)栅(Zha).上(Shang),(?)经(Jing)凹(Ao)面(Mian)光(Guang)栅(Zha)分(Fen)光(Guang)后(Hou),(?)产(Chan)生(Sheng)的(De)谱(Pu)线(Xian)成(Cheng)象(Xiang)在(Zai)罗(Luo)兰(Lan)园(Yuan)上(Shang)。(?)在(Zai)选(Xuan)定(Ding)的(De)波(Bo)长(Chang)位(Wei)置(Zhi)上(Shang)安(An)装(Zhuang)出(Chu)射(She)狭(Xia)缝(Feng),(?)使(Shi)予(Yu)先(Xian)选(Xuan)定(Ding)波(Bo)长(Chang)的(De)谱(Pu)线(Xian),(?)通(Tong)过(Guo)出(Chu)射(She)狭(Xia)缝(Feng),(?)照(Zhao)在(Zai)与(Yu)其(Qi)对(Dui)应(Ying)的(De)光(Guang)电(Dian)倍(Bei)增(Zeng)管(Guan)光(Guang)阴(Yin)极(Ji)上(Shang)。(?)
(?) (?)光(Guang)电(Dian)倍(Bei)增(Zeng)管(Guan)在(Zai)高(Gao)压(Ya)电(Dian)的(De)作(Zuo)用(Yong)下(Xia),(?)进(Jin)行(Xing)光(Guang)电(Dian)转(Zhuan)换(Huan),(?)将(Jiang)照(Zhao)在(Zai)其(Qi)阴(Yin)极(Ji)上(Shang)的(De)光(Guang)信(Xin)号(Hao)变(Bian)成(Cheng)电(Dian)信(Xin)号(Hao)---电(Dian)流(Liu)。(?)光(Guang)电(Dian)流(Liu)的(De)强(Qiang)度(Du)和(He)光(Guang)谱(Pu)线(Xian)强(Qiang)度(Du)成(Cheng)正(Zheng)比(Bi)。(?)
(?) (?)由(You)于(Yu)光(Guang)电(Dian)流(Liu)随(Sui)时(Shi)间(Jian)波(Bo)动(Dong)很(Hen)大(Da),(?)通(Tong)常(Chang)不(Bu)是(Shi)测(Ce)量(Liang)光(Guang)电(Dian)流(Liu)的(De)瞬(Shun)时(Shi)值(Zhi)。(?)而(?)是(Shi)采(Cai)取(Qu)积(Ji)分(Fen)的(De)办(Ban)法(Fa)。(?)在(Zai)光(Guang)电(Dian)倍(Bei)增(Zeng)管(Guan)光(Guang)电(Dian)流(Liu)输(Shu)出(Chu)的(De)有(You)效(Xiao)时(Shi)间(Jian)内(Nei),(?)对(Dui)光(Guang)电(Dian)流(Liu)进(Jin)行(Xing)积(Ji)分(Fen),(?)记(Ji)录(Lu)光(Guang)强(Qiang)的(De)平(Ping)均(Jun)值(Zhi)。(?)但(Dan)是(Shi)有(You)时(Shi)也(Ye)需(Xu)要(Yao)记(Ji)录(Lu)瞬(Shun)时(Shi)值(Zhi),(?)这(Zhe)可(Ke)由(You)程(Cheng)序(Xu)进(Jin)行(Xing)选(Xuan)择(Ze),(?)前(Qian)者(Zhe)用(Yong)于(Yu)分(Fen)析(Xi),(?)后(Hou)者(Zhe)用(Yong)于(Yu)描(Miao)迹(Ji)。(?)
(?) (?)重(Zhong)庆(Qing)二(?)手(Shou)直(Zhi)读(Du)光(Guang)谱(Pu)仪(Yi)结(Jie)构(Gou):(?)
(?) (?)1、(?)光(Guang)谱(Pu)分(Fen)析(Xi):(?)使(Shi)用(Yong)光(Guang)谱(Pu)仪(Yi),(?)采(Cai)用(Yong)放(Fang)电(Dian)方(Fang)式(Shi)对(Dui)试(Shi)样(Yang)中(Zhong)所(Suo)含(Han)分(Fen)析(Xi)元(Yuan)素(Su)进(Jin)行(Xing)激(Ji)发(Fa),(?)根(Gen)据(Ju)测(Ce)量(Liang)原(Yuan)子(Zi)谱(Pu)线(Xian)的(De)光(Guang)谱(Pu)强(Qiang)度(Du),(?)进(Jin)行(Xing)定(Ding)量(Liang)分(Fen)析(Xi)的(De)方(Fang)法(Fa)。(?)
(?) (?)2、(?)光(Guang)电(Dian)测(Ce)光(Guang)法(Fa):(?)采(Cai)用(Yong)光(Guang)电(Dian)倍(Bei)增(Zeng)管(Guan)检(Jian)测(Ce)光(Guang)强(Qiang)度(Du)的(De)测(Ce)定(Ding)法(Fa)。(?)
(?) (?)3、(?)电(Dian)极(Ji):(?)作(Zuo)为(Wei)形(Xing)成(Cheng)放(Fang)电(Dian)间(Jian)隙(Xi)的(De)试(Shi)样(Yang)和(He)对(Dui)电(Dian)极(Ji)的(De)总(Zong)称(Cheng)。(?)
(?) (?)4、(?)予(Yu)放(Fang)电(Dian)时(Shi)间(Jian):(?)设(She)定(Ding)从(Cong)放(Fang)电(Dian)开(Kai)始(Shi)到(Dao)激(Ji)发(Fa)强(Qiang)度(Du)稳(Wen)定(Ding)这(Zhe)一(Yi)段(Duan)的(De)非(Fei)积(Ji)分(Fen)时(Shi)间(Jian)。(?)
(?) (?)5、(?)氩(Ya)气(Qi):(?)在(Zai)电(Dian)极(Ji)周(Zhou)围(Wei)形(Xing)成(Cheng)流(Liu)动(Dong)的(De)氩(Ya)保(Bao)护(Hu)气(Qi)罩(Zhao),(?)以(Yi)降(Jiang)低(Di)试(Shi)样(Yang)影(Ying)响(Xiang),(?)减(Jian)少(Shao)空(Kong)气(Qi)中(Zhong)氧(Yang)的(De)吸(Xi)收(Shou),(?)确(Que)保(Bao)放(Fang)电(Dian)稳(Wen)定(Ding)。(?)
(?) (?)6、(?)分(Fen)析(Xi)试(Shi)样(Yang):(?)供(Gong)检(Jian)测(Ce)用(Yong)试(Shi)样(Yang)。(?)
(?) (?)7、(?)标(Biao)准(Zhun)试(Shi)样(Yang):(?)根(Gen)据(Ju)工(Gong)业(Ye)标(Biao)准(Zhun)或(Huo)其(Qi)它(Ta)相(Xiang)应(Ying)标(Biao)准(Zhun)的(De)化(Hua)学(Xue)分(Fen)析(Xi)方(Fang)法(Fa)结(Jie)合(He)分(Fen)析(Xi)元(Yuan)素(Su)含(Han)量(Liang)定(Ding)值(Zhi),(?)用(Yong)于(Yu)制(Zhi)作(Zuo)检(Jian)量(Liang)线(Xian)用(Yong)的(De)试(Shi)样(Yang)。(?)
(?) (?)8、(?)标(Biao)准(Zhun)化(Hua)试(Shi)样(Yang):(?)仪(Yi)器(Qi)运(Yun)行(Xing)上(Shang)段(Duan)时(Shi)间(Jian)或(Huo)检(Jian)测(Ce)一(Yi)定(Ding)数(Shu)日(Ri)的(De)试(Shi)样(Yang)后(Hou),(?)对(Dui)检(Jian)量(Liang)线(Xian)进(Jin)行(Xing)校(Xiao)正(Zheng)所(Suo)使(Shi)用(Yong)的(De)氩(Ya)样(Yang)。(?)