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计量:探讨校准温度校验仪的方法

更新时间: 2017年05月17日 所属类别: 知识百科 阅读量:

引言

suizheshichangjingjidefazhan,wenduxianshihekongzhiyibiaoyijingguangfanyingyongyuguominjingji、shehuishengchanzhongdegegefangmian,zaishengchanshenghuozhongqidaozhongyaodezuoyong,youqishizaishiyou、dianli、huagong、yejin、hangkongdengzhongyaogongyelingyuqizhezhongyaodecekongzuoyong。zheixiewenduyibiaoceliangwenduchuanganqichuandilaidemonixinhaohuoshuzixinhao,tongguozishendexinhaodiaolidianluhuoguhuazaixinpianzhongdechulichengxujiangsuocededewenduzhuanbianchengshuzixingshihuomonixingshidexianshizhi。weilebaozhengceshixitongdekekao,duizheixiewenduyibiaojichuanganqidexiaozhun、diaozhenghejianxiuweihutongyangyeshiyijianshifenzhongyaodegongzuo。

百家乐官网muqian,guoneiduiyuzheixiewenduyibiaodexiaozhun、diaoshitongchangyijujiandingguichengzhongguidingde,duipeiredianzudewenduyibiaocaiyongbiaozhundianzuxiangzuoweibiaozhundianzuyuan,duiyupeiredianoudewenduyibiaocaiyongzhiliudianweichajizuoweibiaozhunxinhaoyuanjinxing。raner,youyucaiyongduoyiqijinxingxiaozhun,zaishijigongzuozhongtebieshixianchangxiaozhungongzuozhongshifenbufangbian,zaiguoneidejiliang、ceshi、xiaozhunlingyuzhujianchuxianleyixiezhinengxingduogongnengdewenduxiaoyanyi,lirufluke 72xxilie、druck trxxilie,shaoxingzhongyica102sduogongnengxinhaoxiaoyanyi、nhr100/nhr200regongxinhaoxiaoyanyidengxilie。tazaigongnengshangleisiyubiaozhundianzuxianghezhiliudianweichajidejicheng,shiyongshangquegengjiafangbian,danshiyouyuguojiawenduyibiaoleijiandingguichengzhongbingmeiyouchuxianzheizhongbiaozhunyuan,zaijiandingxiaozhunzheileiyiqishiduoshuzhinengcanzhaoxiangguanguichengguifanjinxing,xiaozhunfangfayejiubunengyizhi,zaochengxiaozhunjieguoyouyidingdechayi。benwenzaiduocixiaozhunbijiaodejichushangtichuyizhongxiaozhunfangfagongdajiatantao,zaishijigongzuozhongyeyouyidingdecankaojiazhi。

温度校验仪原理

百家乐官网wenduxiaoyanyishiyizhongyongyuwenduchuanganqihecekongyibiaohuocekongxitongxiaozhun、ceshi、diaoshideduogongnengzonghexingyiqi。tadeyuanlishiyidanpianjihuochuliqiweihexin,peizhirenjijiekoujiemianheshurushuchudianlu,tongchangjuyouyixiajigetedian:

1、nengceliangduozhongredianzu、redianoudexinhaobingyiwenduzhixianshi;

2、juyoulengduan(cankaoduan) wenduzidongbuchanggongneng;

3、nengshuchuheceliangdianzu、zhiliudianyahuozhiliudianliuzhi;

4、nenganzhaofendubiaowendingshuchuduozhongredianzu、redianougewenduduiyingdebiaozhundianliangzhi。

yonghukeyijiangyaocelianghexianshidegexiangshujutongguorenjijiemianshurudaozhilingcaozuodianluzhong,danpianjihuochuliqigenjujieshoudaodezhiling,kongzhidianluzuochuxiangyingdeshurushuchudongzuo,bingjiangqijieguozaixianshipingshangxianshi,youdegongnengjiaodanyikenengmeiyouxianshi。lingwai,youyuredianzu、redianoudedianliangzhihewenduzhishifeixianxingde,dianluzhongtongchanghaiyouyibufenshiyonglaicunchushujubiaogedecunchuqidianlu。rutu1suoshi。duiyudairedianzuxiaozhungongnengdewenduxiaoyanyiyouyushurushuchudedoushidianzuxinhao,zhijietongguoa/dzhuanhuanqijiukeyijinxingcekong。

温度校验仪原理图

tu1:wenduxiaoyanyiyuanlijiegoutu

duiyudairedianouxiaozhungongnengdewenduxiaoyanyi,zaia/dzhuanhuanqizhiqianhaiyouyigelengduanbuchangdianlu,yonglaiceliangredianoudelengduanwendubingjinxingzidongbuchang。buchangfangfachangjiandaoyoubuchangqiaolufa、biansongqizhuanhuanfahelwblengduanbuchangqifa。

校准方法

1、xiaozhuntiaojian

百家乐官网wenduxiaoyanyitongchangkeshuchugezhongdianxinhao,ruredianoudezhiliuhaofuxinhao(mv) ,redianzudezhiliudianzuxinhao(ω) ,biansongqidezhiliuhaoanxinhao(ma)hezhiliudianyaxinhao(v),tongshijuyoujiaogaodejingdu(>0.02%) ,suoyixiaozhunwenduxiaoyanyiyongdebiaozhunqiyingxuanyongcelianggezhongdianxinhaobuquedingduxiaoyuwenduxiaoyanyiyuncha1/5deceliangbiaozhunqi,keyidiaowendejunyunxingdayu0.05 ℃dehengwenqi,yijixiaozhunredianzudianzuxinhaoyongdesigenzhuanyonglianjiedaoxian。

2、jibenwuchadexiaozhunfangfa

百家乐官网duiyuxiaozhunshuchuredianzuxinhaodewenduxiaoyanyilaishuo,baijialeguanwangkeyiyijuguojiajiandingguichengzhongdefangfa,caiyongsigenzhuanyonglianjiedaoxianlianjiexiaoyanyiheceliangbiaozhunqi,jikedechutashuchudedianzuxinhaojibenwucha,zaiyijufendubiaokeyidedaobutongfenduxiadewenduwucha。

百家乐官网duiyuxiaozhunshuchuredianouxinhaodewenduxiaoyanyilaishuo,tongguoxiaoyanyiyuanlibaijialeguanwangkeyikanchu,tadejibenwuchashijibaokuolianggebufen: shuchuzhiliuhaofuxinhaodewuchahelengduanceliangdewucha。zaijj g617—1996《shuziwenduzhishidiaojieyijiandingguicheng》zhongguidingduipeiredianoudeshuziwenduyibiaojibenwuchadejianding,caiyongrutu2 suoshidefangfa,beijianyibiaolianjiebuchangdaoxiancharubingdiancao,zaiyongtongdaoxianyuxinhaoyuanxianglianjie,shuruzhiliuhaofuxinhaolaiceliangyibiaodewucha。suoyiyourentichucaiyongleisidefangfalaixiaozhunwenduxiaoyanyi,jiangbeijianyibiaohuanchengxiaoyanyi,xinhaoyuanhuanchengceliangbiaozhunqi。danshibizherenweizheizhongfangfabutuo,zhuyaoyuanyinyou:

温度校验仪校准方法图

百家乐官网1、zheizhongfangfaduiyuneixieceliangjingdubugaodeyibiaoshiyong,danshiduiyuwenduxiaoyanyizheizhongjingdujiaogaodeyiqilaishuo,suocededewuchazhongbaokuolehengwencaohebuchangdaoxiandeceliangwucha,buquedingdufenliangjiaoda。youqishibuchangdaoxianyouyuwendingxing、cailiaodengyuanyinbenshendewuchajiubijiaoda,jingmijidebuchangdaoxianyeyaodadao2μv,erqieyouyubuchangdaoxiandexiuzhengzhicaiyongdedoushi20 ℃shidexiuzhengzhi,ershijilengduanwendukenengyu20 ℃cunzaiyidingdechayi,cunzaiyidingwucha,yinerwulunpeibeizaihaodeceliangbiaozhunqi,zhengtaoxiaozhunzhuangzhidebuquedingduyewufadedaoyouxiaotigao。

百家乐官网2、wenduxiaoyanyitongchangdoujuyouxiaozhunduozhongfenduhaoredianoudegongneng,anshangshufangfabixuduimeiyizhongfenduhaoderedianoujinxingxiaozhun,zheizaishijigongzuozhonggongzuoliangjuda,nanyizuodao,erqiezaijishushangyehaowubiyao。yinweibulunshenmefenduhaoderedianoudewendushuchudoushiyouzhiliudianyashuchuhelengduanbuchangzuchengde。

suoyi,benwenrenweiduiyuxiaozhunredianouxinhaoshuchudewenduxiaoyanyishiyifenbieduizhiliuhaofuxinhaoshuchujibenwuchahelengduanbuchangwuchajinxingxiaozhun,duiyuzhiliuhaofushuchuwuchadexiaozhunkeyiyijujj g445—86《zhiliubiaozhundianyayuanjiandingguicheng》lianjieceliangbiaozhunqijinxingxiaozhun,erduiyulengduanbuchangwuchakeyicaiyongyixiafangfajinxingxiaozhun。

百家乐官网rutu3,caiyongyigekeyidiaojiewendudehengwencaolaidaitilingduhengwencao,gaihengwencaodepianchayaoqiubugao,danshijunyunxingbudedayu0.05 ℃,yibaozhengceliangjingdu。jianghengwencaodechushiwendut0=20℃,renxuanyifenduhaodebuchangdaoxian,buchangdaoxiandeyiduanduanjiehoucharuhengwencao,lingyiduanjierubeixiaodewenduxiaoyanyilengduanshuruduan。lingwaicaiyongbiaozhunbodianzuwendujijixiangyingceliangyibiao(huozhebiaozhunshuiyinwenduji) celiangcaowen,bodianzuwendujiganwenyuanjianduanyinggaiyubuchangdaoxianduanjieduanbaochitongyigaodubingjinliangjiejin。daicaowenhebeixiaolengduanwenduhengdinghou,celiangcishibuchangdaoxiancankaoduanderediandongshizhie1,anxiashihuansuanchengwenduδt1。

温度校验仪应用案例图

qizhong,st0biaoshigaifenduhaoredianouzai20 ℃shideweifendiandongshizhi。

百家乐官网jianghengwencaowendudiaozhengweit1 = t0 - δt1 ,daicaowenhengdinghou,zaiceliangbuchangdaoxianderediandongshizhie2,zhongfuyishangbuzhou,zhidaorediandongshizhiehuoδtjiejinling(huozhexiaoyuyidingzhi,yibankequδt<0.1℃) ,jirenweihengwencaodecaowenyulengduanwenduyizhi。cishijiangbeijianwenduxiaoyanyizhuanhuanzhicewendang,duquyibiaozhishizhitdhebiaozhunwendujidushutbiao。

百家乐官网ranhou,jiangbuchangdaoxiancankaoduanchaixiahoujieshangtongdaoxian,fangruhengwencaozhong,buchangdaoxiandeduanjieduanhecankaoduanfangzhizaitongyishendubingjinliangjiejin,tongdaoxiandeliangduantongshijiedaoceliangbiaozhunqishang,celiangbuchangdaoxianderediandongshiδe。binganzhaoxiashidechugaiwenduxiaoyanyidelengduanbuchangwuchaδbu。

δbu= (td - tbiao)·stbiao- δe

shizhong,δbuweibeixiaoyiqidelengduanbuchangwucha,μv ;

百家乐官网tdweibeixiaoyiqiduqudewendushizhi,℃;

tbiaoweibiaozhunwendujiduqudewenduzhi,℃;

stbiaoweigaifenduhaoredianouzaibiaozhunwendujisuoshiwendushideweifendiandongshi,μv/ ℃;

δeweibuchangdaoxianshijiwenduxiadexiuzhengzhi,μv。

百家乐官网suodechudelengduanbuchangwucha,genjuredianoudefendubiaokeyifenbiedechubutongfenduhaoredianouhuansuanchudewenduzhi。

百家乐官网zheiyangxiaozhunjieguojiufenchenglewenduxiaoyanyidezhiliuhaofuxinhaoshuchuwuchahelengduanbuchangwucha,zuidaxiandudejianshaolelengduancelianghebuchangdaoxianyinqidewucha。

3、jibenwuchajisuan

百家乐官网wenduxiaoyanyidezuihoujibenwuchaanxiashijisuan:

温度校验仪温度校准公式

shizhong:δtweiwenduxiaoyanyihuansuanchengwendudejibenwucha,℃;

δaweidianliangchengshuchuzhishiwucha,μv、ωhuoma ;

百家乐官网δbuweiredianoushuchushidelengduanbuchangwucha,μv,zaixiaozhunfeiredianoushuchushi,cixiangwei0;

百家乐官网(δa /δt) t weidianliangchengshuchuzhishiwucha,μv/℃、ω/℃huoma/℃。

δt dezuihoujieguoyinganzhaoshujuxiuyueguizehuazhengdaoyuwenduxiaoyanyigaigongnengdangdefenbianlvyizhi。

结束语

百家乐官网tongguoduiwenduxiaoyanyidedianliangshuchuwuchahelengduanbuchangwuchafenbieceliang,duiyugaozhunquedu、duogongnengdewenduxiaoyanyibaijialeguanwangkeyigengjiafangbian、zhunquedeceliangqiwucha,dadaoxiaozhundemude。qixiaozhundeceliangbuquedingdushijizhishiyouliangbufenzucheng:dianliangshuchudebuquedingduhelengduanbuchangdebuquedingdu。

qizhong,dianliangshuchudebuquedingduyulengduanbuchangdebuquedingduxiangbitongchangjiaoxiao,zaishuchuredianouxinhaoshi,baijialeguanwangkeyitongguoliangzhedehechengdedaowenduxiaoyanyizaigegefendushideceliangbuquedingdu,bingqietongguoduilengduanbuchangwuchadegengjingquecelianglaixiaozhungaojingduwenduxiaoyanyi。

xiangguanchanpin:

CA102S/CA103过程信号校验仪: /xuanxing/26.htm

NHR200/NHR100多功能信号校验仪: /xuanxing/27.htm

参考文献

百家乐官网[1] huangzexian.redianouyuanlijiqijianding.zhongguojiliangchubanshe,1993。

百家乐官网[2] guojiajishujianduju.jj g617~1996 shuziwenduzhishidiaojieyijiandingguicheng. zhongguojiliangchubanshe,1997。

百家乐官网[3] beijingshibiaozhunjiliangju.wendujiliang.zhongguojiliangchubanshe,1987。

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