怎(Zen)样(Yang)辨(Bian)别(Bie)真(Zhen)假(Jia)优(You)劣(Lie)的(De)电(Dian)流(Liu)电(Dian)压(Ya)变(Bian)送(Song)器(Qi)?
生(Sheng)产(Chan)资(Zi)料(Liao)市(Shi)场(Chang)化(Hua)以(Yi)后(Hou)，(?)加(Jia)剧(Ju)激(Ji)烈(Lie)的(De)竞(Jing)争(Zheng)，(?)真(Zhen)假(Jia)优(You)劣(Lie)难(Nan)辨(Bian)，(?)又(You)因(Yin)变(Bian)送(Song)器(Qi)是(Shi)边(Bian)缘(Yuan)学(Xue)科(Ke)，(?)很(Hen)多(Duo)工(Gong)程(Cheng)设(She)计(Ji)人(Ren)员(Yuan)对(Dui)此(Ci)较(Jiao)陌(Mo)生(Sheng)，(?)有(You)些(Xie)厂(Chang)家(Jia)产(Chan)品(Pin)工(Gong)业(Ye)级(Ji)别(Bie)和(He)民(Min)用(Yong)商(Shang)用(Yong)级(Ji)别(Bie)指(Zhi)标(Biao)混(Hun)淆(Xiao)（(?)工(Gong)业(Ye)级(Ji)的(De)价(Jia)格(Ge)是(Shi)民(Min)用(Yong)商(Shang)用(Yong)级(Ji)的(De)2-3倍(Bei)）(?)有(You)些(Xie)厂(Chang)家(Jia)产(Chan)品(Pin)用(Yong)几(Ji)角(Jiao)钱(Qian)的(De)LM324和(He)LM431就(Jiu)可(Ke)以(Yi)做(Zuo)出(Chu)一(Yi)只(Zhi)变(Bian)送(Song)器(Qi)，(?)不(Bu)信(Xin)的(De)话(Hua)您(Nin)打(Da)开(Kai)看(Kan)看(Kan)，(?)你(Ni)几(Ji)百(Bai)元(Yuan)买(Mai)来(Lai)的(De)是(Shi)不(Bu)是(Shi)用(Yong)的(De)LM324和(He)LM431，(?)这(Zhe)样(Yang)的(De)变(Bian)送(Song)器(Qi)送(Song)您(Nin)，(?)您(Nin)敢(Gan)不(Bu)敢(Gan)用(Yong)？(?)
笔(Bi)者(Zhe)试(Shi)以(Yi)常(Chang)用(Yong)级(Ji)精(Jing)度(Du)的(De)电(Dian)流(Liu)电(Dian)压(Ya)变(Bian)送(Song)器(Qi)为(Wei)例(Li)，(?)从(Cong)以(Yi)下(Xia)方(Fang)法(Fa)着(Zhuo)手(Shou)来(Lai)辨(Bian)别(Bie)真(Zhen)假(Jia)优(You)劣(Lie)。(?)
(1)基(Ji)准(Zhun)要(Yao)稳(Wen),４(?)mA是(Shi)对(Dui)应(Ying)的(De)输(Shu)入(Ru)零(Ling)位(Wei)基(Ji)准(Zhun)，(?)基(Ji)准(Zhun)不(Bu)稳(Wen)，(?)谈(Tan)何(He)精(Jing)度(Du)线(Xian)性(Xing)度(Du)，(?)冷(Leng)开(Kai)机(Ji)３(?)分(Fen)锺(Zhong)内(Nei)４(?)mA的(De)零(Ling)位(Wei)漂(Piao)移(Yi)变(Bian)化(Hua)不(Bu)超(Chao)过(Guo)%以(Yi)内(Nei);(即(Ji)),负(Fu)载(Zai)250Ω(?)上(Shang)的(De)压(Ya)降(Jiang)为(Wei)，(?)国(Guo)外(Wai)IC心(Xin)片(Pian)多(Duo)用(Yong)昂(Ang)贵(Gui)的(De)能(Neng)隙(Xi)基(Ji)准(Zhun)，(?)温(Wen)漂(Piao)系(Xi)数(Shu)每(Mei)度(Du)变(Bian)化(Hua)10ppm；(?)
(2)内(Nei)电(Dian)路(Lu)总(Zong)计(Ji)消(Xiao)耗(Hao)电(Dian)流(Liu)<4mA,加(Jia)整(Zheng)定(Ding)后(Hou)等(Deng)于(Yu),而(?)且(Qie)有(You)源(Yuan)整(Zheng)流(Liu)滤(Lu)波(Bo)放(Fang)大(Da)恒(Heng)流(Liu)电(Dian)路(Lu)不(Bu)因(Yin)原(Yuan)边(Bian)输(Shu)入(Ru)变(Bian)化(Hua)而(?)消(Xiao)耗(Hao)电(Dian)流(Liu)也(Ye)随(Sui)之(Zhi)变(Bian)化(Hua)，(?)国(Guo)外(Wai)IC心(Xin)片(Pian)采(Cai)用(Yong)恒(Heng)流(Liu)供(Gong)电(Dian)；(?)
(3)当(Dang)工(Gong)作(Zuo)电(Dian)压(Ya)时(Shi),满(Man)量(Liang)程(Cheng)时(Shi),满(Man)量(Liang)程(Cheng)的(De)读(Du)数(Shu)不(Bu)会(Hui)因(Yin)负(Fu)载(Zai)0-700Ω(?)变(Bian)化(Hua)而(?)变(Bian)化(Hua);变(Bian)化(Hua)不(Bu)超(Chao)过(Guo)%以(Yi)内(Nei)；(?)
(4)当(Dang)满(Man)量(Liang)程(Cheng)时(Shi),负(Fu)载(Zai)250Ω(?)时(Shi),满(Man)量(Liang)程(Cheng)的(De)读(Du)数(Shu)不(Bu)会(Hui)因(Yin)工(Gong)作(Zuo)电(Dian)压(Ya)变(Bian)化(Hua)而(?)变(Bian)化(Hua);变(Bian)化(Hua)不(Bu)超(Chao)过(Guo)%以(Yi)内(Nei)；(?)
(5)当(Dang)原(Yuan)边(Bian)过(Guo)载(Zai)时(Shi)，(?)输(Shu)出(Chu)电(Dian)流(Liu)不(Bu)超(Chao)过(Guo)+10%以(Yi)内(Nei)，(?)否(Fou)则(Ze)PLC/DCS内(Nei)供(Gong)变(Bian)送(Song)器(Qi)用(Yong)的(De)24V工(Gong)作(Zuo)电(Dian)源(Yuan)和(He)A/D输(Shu)入(Ru)箝(Qian)位(Wei)电(Dian)路(Lu)因(Yin)功(Gong)耗(Hao)过(Guo)大(Da)而(?)损(Sun)坏(Huai)，(?)另(Ling)外(Wai)变(Bian)送(Song)器(Qi)内(Nei)的(De)射(She)随(Sui)输(Shu)出(Chu)亦(Yi)因(Yin)功(Gong)耗(Hao)过(Guo)大(Da)而(?)损(Sun)坏(Huai)，(?)无(Wu)A/D输(Shu)入(Ru)箝(Qian)位(Wei)电(Dian)路(Lu)的(De)更(Geng)遭(Zao)殃(Yang)；(?)
(6)当(Dang)工(Gong)作(Zuo)电(Dian)压(Ya)24V接(Jie)反(Fan)时(Shi)不(Bu)得(De)损(Sun)坏(Huai)变(Bian)送(Song)器(Qi),必(Bi)须(Xu)有(You)极(Ji)性(Xing)保(Bao)护(Hu);
(7)当(Dang)两(Liang)线(Xian)之(Zhi)间(Jian)因(Yin)感(Gan)应(Ying)雷(Lei)及(Ji)感(Gan)应(Ying)浪(Lang)涌(Yong)电(Dian)压(Ya)超(Chao)过(Guo)24V时(Shi)要(Yao)箝(Qian)位(Wei),不(Bu)得(De)损(Sun)坏(Huai)变(Bian)送(Song)器(Qi)；(?)一(Yi)般(Ban)在(Zai)两(Liang)线(Xian)之(Zhi)间(Jian)并(Bing)联(Lian)1-2只(Zhi)TVS瞬(Shun)态(Tai)保(Bao)护(Hu)二(?)极(Ji)管(Guan) 可(Ke)抑(Yi)制(Zhi)每(Mei)20秒(Miao)间(Jian)隔(Ge)一(Yi)次(Ci)的(De)20毫(Hao)秒(Miao)脉(Mai)宽(Kuan)的(De)正(Zheng)反(Fan)脉(Mai)冲(Chong)的(De)冲(Chong)击(Ji),瞬(Shun)态(Tai)承(Cheng)受(Shou)冲(Chong)击(Ji)功(Gong)率(Lu);
(8)产(Chan)品(Pin)标(Biao)示(Shi)的(De)线(Xian)性(Xing)度(Du)％(?)是(Shi)绝(Jue)对(Dui)误(Wu)差(Cha)还(Huan)是(Shi)相(Xiang)对(Dui)误(Wu)差(Cha)。(?)
(9)原(Yuan)边(Bian)输(Shu)入(Ru)过(Guo)载(Zai)时(Shi)必(Bi)须(Xu)限(Xian)流(Liu):原(Yuan)边(Bian)输(Shu)入(Ru)过(Guo)载(Zai)大(Da)于(Yu)125%时(Shi)输(Shu)出(Chu)过(Guo)流(Liu)限(Xian)制(Zhi)25mＡ(?)+10%()负(Fu)载(Zai)250Ω(?)上(Shang)的(De)压(Ya)降(Jiang)为(Wei)；(?)
(10)感(Gan)应(Ying)浪(Lang)涌(Yong)电(Dian)压(Ya)超(Chao)过(Guo)24V时(Shi)有(You)无(Wu)箝(Qian)位(Wei)的(De)辨(Bian)别(Bie):在(Zai)两(Liang)线(Xian)输(Shu)出(Chu)端(Duan)口(Kou)并(Bing)一(Yi)个(Ge)交(Jiao)流(Liu)50V指(Zhi)针(Zhen)式(Shi)表(Biao)头(Tou),用(Yong)交(Jiao)流(Liu)50V接(Jie)两(Liang)根(Gen)线(Xian)去(Qu)瞬(Shun)间(Jian)碰(Peng)一(Yi)下(Xia)两(Liang)线(Xian)输(Shu)出(Chu)端(Duan)口(Kou),看(Kan)有(You)无(Wu)箝(Qian)位(Wei),箝(Qian)位(Wei)多(Duo)少(Shao)伏(Fu)可(Ke) 一(Yi)目(Mu)了(Liao)然(Ran)啦(La);
(11)有(You)无(Wu)极(Ji)性(Xing)保(Bao)护(Hu)的(De)辨(Bian)别(Bie):用(Yong)指(Zhi)针(Zhen)式(Shi)万(Wan)用(Yong)表(Biao)Ω(?)乘(Cheng)10K档(Dang)正(Zheng)反(Fan)测(Ce)量(Liang)两(Liang)线(Xian)输(Shu)出(Chu)端(Duan)口(Kou),总(Zong)有(You)一(Yi)次(Ci)Ω(?)阻(Zu)值(Zhi)无(Wu)限(Xian)大(Da),就(Jiu)有(You)极(Ji)性(Xing)保(Bao)护(Hu)；(?)
(12)有(You)无(Wu)极(Ji)输(Shu)出(Chu)电(Dian)流(Liu)长(Chang)时(Shi)间(Jian)短(Duan)路(Lu)保(Bao)护(Hu)：(?)原(Yuan)边(Bian)输(Shu)入(Ru)100％(?)时(Shi)或(Huo)过(Guo)载(Zai)大(Da)于(Yu)125%-200%时(Shi)，(?)将(Jiang)负(Fu)载(Zai)250Ω(?)短(Duan)路(Lu)，(?)测(Ce)量(Liang)短(Duan)路(Lu)保(Bao)护(Hu)限(Xian)制(Zhi)是(Shi)否(Fou)在(Zai)25mＡ(?)+10%；(?)
(13)工(Gong)业(Ye)级(Ji)别(Bie)和(He)民(Min)用(Yong)商(Shang)用(Yong)级(Ji)别(Bie)的(De)辨(Bian)别(Bie):工(Gong)业(Ye)级(Ji)别(Bie)工(Gong)作(Zuo)温(Wen)度(Du)范(Fan)围(Wei)是(Shi)-25度(Du)到(Dao)＋(?)７(?)０(?)度(Du)，(?)温(Wen)漂(Piao)系(Xi)数(Shu)是(Shi)每(Mei)度(Du)变(Bian)化(Hua)１(?)０(?)０(?)ppm,即(Ji)温(Wen)度(Du)每(Mei)度(Du)变(Bian)化(Hua)１(?)度(Du),精(Jing)度(Du)变(Bian)化(Hua)为(Wei)万(Wan)分(Fen)之(Zhi)一(Yi)；(?)民(Min)用(Yong)商(Shang)用(Yong)级(Ji)别(Bie)工(Gong)作(Zuo)温(Wen)度(Du)范(Fan)围(Wei)是(Shi)０(?)度(Du)（(?)或(Huo)-10度(Du)）(?)到(Dao)＋(?)７(?)０(?)度(Du)（(?)或(Huo)+50度(Du)）(?),温(Wen)漂(Piao)系(Xi)数(Shu)是(Shi)每(Mei)度(Du)变(Bian)化(Hua)25０(?)ppm,即(Ji)温(Wen)度(Du)每(Mei)度(Du)变(Bian)化(Hua)１(?)度(Du),精(Jing)度(Du)变(Bian)化(Hua)为(Wei)万(Wan)分(Fen)之(Zhi)二(?)点(Dian)五(Wu)；(?)电(Dian)流(Liu)电(Dian)压(Ya)变(Bian)送(Song)器(Qi)的(De)温(Wen)漂(Piao)系(Xi)数(Shu)可(Ke)以(Yi)用(Yong)恒(Heng)温(Wen)箱(Xiang)或(Huo)高(Gao)低(Di)温(Wen)箱(Xiang)来(Lai)试(Shi)验(Yan)验(Yan)证(Zheng)较(Jiao)繁(Fan)琐(Suo)。(?)
上(Shang)述(Shu)13种(Zhong)方(Fang)法(Fa)同(Tong)样(Yang)可(Ke)用(Yong)与(Yu)其(Qi)它(Ta)变(Bian)送(Song)器(Qi)真(Zhen)假(Jia)优(You)劣(Lie)的(De)辨(Bian)别(Bie)。(?)
深(Shen)圳(Zhen)市(Shi)力(Li)准(Zhun)传(Chuan)感(Gan)技(Ji)术(Shu)有(You)限(Xian)公(Gong)司(Si)是(Shi)高(Gao)精(Jing)度(Du)力(Li)传(Chuan)感(Gan)器(Qi)、(?)称(Cheng)重(Zhong)传(Chuan)感(Gan)器(Qi)、(?)扭(Niu)矩(Ju)传(Chuan)感(Gan)器(Qi)、(?)柱(Zhu)式(Shi)传(Chuan)感(Gan)器(Qi)的(De)专(Zhuan)业(Ye)制(Zhi)造(Zao)商(Shang)，(?)也(Ye)是(Shi)集(Ji)生(Sheng)产(Chan)、(?)销(Xiao)售(Shou)、(?)售(Shou)后(Hou)为(Wei)一(Yi)体(Ti)的(De)综(Zong)合(He)性(Xing)技(Ji)术(Shu)创(Chuang)新(Xin)企(Qi)业(Ye)。(?)主(Zhu)要(Yao)产(Chan)品(Pin)有(You)多(Duo)品(Pin)种(Zhong)的(De)称(Cheng)重(Zhong)、(?)测(Ce)力(Li)、(?)压(Ya)力(Li)、(?)扭(Niu)矩(Ju)传(Chuan)感(Gan)器(Qi)等(Deng)千(Qian)余(Yu)款(Kuan)产(Chan)品(Pin)。(?)有(You)适(Shi)用(Yong)于(Yu)各(Ge)种(Zhong)恶(E)劣(Lie)环(Huan)境(Jing)的(De)高(Gao)、(?)中(Zhong)、(?)低(Di)温(Wen)传(Chuan)感(Gan)器(Qi)和(He)高(Gao)防(Fang)护(Hu)等(Deng)级(Ji)传(Chuan)感(Gan)器(Qi)。(?)产(Chan)品(Pin)广(Guang)泛(Fan)应(Ying)用(Yong)于(Yu)航(Hang)空(Kong)航(Hang)天(Tian)、(?)汽(Qi)车(Che)制(Zhi)造(Zao)、(?)纺(Fang)织(Zhi)、(?)电(Dian)子(Zi)、(?)油(You)田(Tian)、(?)化(Hua)工(Gong)、(?)机(Ji)械(Xie)加(Jia)工(Gong)、(?)能(Neng)源(Yuan)、(?)环(Huan)保(Bao)、(?)医(Yi)疗(Liao)、(?)交(Jiao)通(Tong)、(?)建(Jian)材(Cai)等(Deng)领(Ling)域(Yu)。(?)
免(Mian)责(Ze)声(Sheng)明(Ming)：(?)本(Ben)文(Wen)部(Bu)分(Fen)内(Nei)容(Rong)源(Yuan)于(Yu)网(Wang)络(Luo)，(?)旨(Zhi)在(Zai)传(Chuan)递(Di)和(He)分(Fen)享(Xiang)更(Geng)多(Duo)信(Xin)息(Xi)，(?)如(Ru)有(You)侵(Qin)犯(Fan)您(Nin)的(De)权(Quan)利(Li)，(?)请(Qing)联(Lian)系(Xi)我(Wo)们(Men)删(Shan)除(Chu)。(?)
