福彩快三

泽天新闻
联系泽天   Contact

钛-硅蓝宝石高温压力传感器温度误差的补偿

发布时间:2020-2-16      发布人:泽天传感      点击:

采用温度误差来确定测量误差,是机械量传感器的重要特性之一。所以,这一数值总是属于此类传感器的重要参数之一。绝大多数+γ%/℃(或+γ%/10℃)。在国际电工委员会的正式文件中,也建议采用这种方式来补偿温度误差,紧随其后的是俄罗斯国家标准。

福彩快三 BENWENZHUYAOTANTAOCAIYONGCIZHONGFANGFADUIJIXIELIANGCHUANGANQIDEWENDUWUCHAJINXINGBUCHANGDEQUEDIAN。ZHEIZHONGQUEDIANZAIBANDAOTISHIYINGBIANDIANZUCHUANGANQISHANGBIAOXIANDEYOUWEIMINGXIAN。XIANZAIBEIGUANGWEISHIYONGDEYALI、LIJUHEYUNDONGCANSHUDENGCHUANGANQIZHONG,CAIYONGBANDAOTISHIYINGBIANDIANZUYUANLIDEZHANLEJUEDADUOSHU。WOMENYIZAIELUOSISHIYONGZUIWEIGUANGFANDEYIZHIWAIYANSHI“GUILANBAOSHI”JIEGOUDEYINGBIANDIANZUSHIYALICHUANGANQIWEILI,LAIZUOJUTISHUOMING。

福彩快三 SHOUXIAN,ZHIYOUZAICHUANGANQISHUCHUXINHAOYUWENDUZHIJIANDEGUANXICHENGXIANXINGSHI,SUOJICHUDEBUCHANGFANGFACAIYOUYIYI。DANSHI,ZHIYOUYINGBIANDIANZUGONGZUOZAIWENDUFANWEIHENZHAIDECHUANGANQI,QISHUCHUXINHAODEWENDUQUXIANCAIKEJIEJINFUHEJINGDUYAOQIUDEXIANXING。DUIYUBANDAOTILAISHUO,YUWENDUXIANGGUANDECANSHUDEFEIXIANXINGTEZHENGFEICHANGMINGXIAN。ERBANDAOTISHIYINGBIANDIANZUCHUANGANQIDESHUCHUXINHAO,TONGCHANGLAISHUO,YUWENDUCHENGFEICHANGMINGXIANDEFEIXIANXINGTEZHENG,YOUQISHIZAIHENKUANDEWENDUFANWEIXIA。.

QICI,SUOJICHUDEBUCHANGFANGFAWUDAOLEYONGHU,DAOZHITAMENJIANGSHIJIWUCHAKUODAYIBEI。YINWEIRUGUOCHUANGANQISHUCHUXINHAODEWENDUQUXIANCHENGXIANXING,ZEZHEIYIQUXIANDEXIELVBIRANDAIYOUTEDINGDEBIAOSHI,YEJIUSHISHUO,GAIXINHAOHUOZHESUIWENDUSHUAIJIAN,HUOZHESUIWENDUZENGJIA。CAIYONG%/℃DEFANGFA,BINGJICHUYIDINGDEFANWEIJIBIAOSHI,DUIWENDUWUCHAJINXINGBUCHANG,YONGHUKEYIZAIMOUGETEDINGDEWENDUFANWEINEI,DUIYALIWUCHAJINXINGSHIJIPINGJIABINGJISUANCHUCELIANGWUCHA;DANSHI,RUGUOBIAOSHIBUQUEDING,ZECELIANGDEBUQUEDINGXINGYESUIZHIDAFUZENGZHANG。

DANGWENDUZENGJIASHI,BEICEYALI(YUCHUANGANQIDESHUCHUXINHAOCHENGZHENGBI)XIANXINGXIAJIANG。CISHI,ZAIYIZHIWENDUTCEXIA,YONGHUKEYIJISUANCHUWENDUWUCHA,BINGJIANGCHUANGANQIDEBEICEYALIPCEHUANSUANWEISHIJIYALIPn。PnSHIZAI“ZHENGCHANG”(SHIWEN)WENDUTnXIAGENJUXIASHIJISUANCHULAIDE:

福彩快三 Рn = РCE–  g*(ТCE– Тn),             (1)

福彩快三 QIZHONG,gWEIР(Т)DEQUXIANXIELV(g < 0)。DANGRAN,ZAIZHEIZHONGQINGKUANGXIA,ZHISHAOHAIBAOLIULEYONGLAIJISUANCHUANGANQIJIBENWUCHADESHIJIYALIDEBUQUEDINGXING。

RUGUOWENDUWUCHADEBIAOSHIBUQUEDINGDEHUA,ZEWANQUANSHILINGWAIYIZHONGQINGKUANG。CISHI,JISHICELIANGWENDUYIZHI,JIUSHIZAIBUKAOLVCHUANGANQIJIBENWUCHADEQINGKUANGXIA,YEXINGCHENGLEBEICEYALIDEBUQUEDINGXINGΔР = (Рn1– Рn2)。

福彩快三 DANGRAN,RUGUOCELIANGWENDUWEIZHI,ZHIDAODEJINSHIGAIWENDUDAYUECHUYUWENDUDEGONGZUOJIANGEQUYU(Tmax-Tmin)NEI,ZEYALICELIANGDEBUQUEDINGXINGJIEGUOWEI:

福彩快三 ΔРм= (Р2– Р1) =  |g|*(Тmax– Тmin)                   (2)

ΔРмZHISUOYIZAIQUXIANZHIWAI,YUANYINJIUZAIYUSHIFOUZHIDAOXIELVXISHUDEBIAOSHIWEIZHIXIANР(Т)。

RANGWOMENKANYIXIAYINGBIANCHUANGANQISHUCHUXINHAODEFEIXIANXINGWENDUQUXIANDEQINGKUANG。BIRU,JIYUGUILANBAOSHIYUANLIDEYALICHUANGANQI,SHIYONGFEIREMINDIANZUDIANLUDUIWENDUPIAOYIJINXINGBUCHANGDE,SHUCHUXINHAOYUWENDUZHIJIANDEGUANXICHENGPAOWUXIANXING。KUOSANGUIHUOZHIRUSHIYINGBIANDIANZUSHICHUANGANQIYEJUYOULEISIDEQUXIAN。XIANGYINGDE,RUGUOBUZAIDIANLUSHANGCAIQUZHUANMENDECUOSHI(BIRUZHINENGDIANLU)JINXINGBUCHONGXIUZHENGDEHUA,ZESHIYONGCILEICHUANGANQISUOCEDEDEYALI(YUSHUCHUXINHAOCHENGZHENGBI)YUWENDUZHIJIANYEBIRANCHENGFEIXIANXINGGUANXI。ZAIZHEIZHONGQINGKUANGXIA,ANZHAOBIAOZHUNWENJIANDEGUIDING,RUGUOYAOCAIYONGXIANXINGXISHUDUIWENDUWUCHAJINXINGBUCHANG,BIXUYAOJICHUXIANGDUIYUPAOWUXIANDEXIELV+γmaxDEZUIDAJUEDUIZHI(。YEJIUSHISHUO,ZAIGONGZUOWENDUFANWEITmax…TminZHIJIANDEZONGDEWENDUBUCHANGWUCHA,SHIANZHAOXIASHIQUEDINGDE):

福彩快三 ΔРn= (Р2– Р1) =  |gmax|*(Тmax– Тmin).                  (3)

XIANERYIJIAN,SUODEDAODEWUCHAZHIDADACHAOGUOLESHIJIZONGWENDUWUCHA

福彩快三 ΔРSHIJI= (Рn– Рmin).                  (4)

福彩快三 YOUCIKEYIKANCHU,ZAICHUANGANQISHUCHUXINHAODEWENDUQUXIANCHENGFEIXIANXINGDEQINGKUANGXIA,CAIYONGCELIANGXIANXINGWENDUXISHUγDEFANGSHIDUIWENDUWUCHAJINXINGBUCHANGSHIMEIYOUYIYIDE,YINWEIZAIGONGZUOWENDUFANWEINEIXIANXINGWENDUXISHUJIYOULIANGDEBIANHUA,YEYOUBIAOSHIDEBIANHUA(QIZHONGBAOKUOTONGGUOLINGDIAN)。ERGENJUXIANXINGGUIDING,ZAISHIYONGSHUOMINGSHUZHONGBIXUZHUMINGγDEZUIDAZHI(JUEDUIZHI)。

ZHENGSHIYOUYUZHEIZHONGYUANYIN,BIANSONGQIZUOWEIDUIBUCHONGWENDUWUCHAJINXINGBUCHANGDECUOSHI,ZAISHIJIGONGZUOWENDUFANWEIΔРSHIJINEIDUIWENDUWUCHAQUYUJINXINGBUCHANG。ZHEIYIWENDUFANWEIZAIBIANSONGQIDEHEGEZHENGZHONGYEBEILIECHU。BIXUZHICHU,GUOJIABIAOZHUNHUAWEIYUANHUIWANQUANRENKEZHEIZHONGFANGFA,BINGQIEYIBEIELUOSILIANBANGGUOJIADENGJIWEIYUANHUICHENGREN。СTONGGUODUIWENDUWUCHAQUYUJINXINGCELIANG,CONGERDECHUWENDUWUCHADEFANGFA(YUXIANXINGWENDUXISHUYIQI),YEBEIYIXIEGUOJIADEBIAOZHUNSUOYUNXU。

BIXUHAIYAOTIDAOYIXIAJIDIAN。SHOUXIAN,SHUCHUXINHAODEWENDUQUXIANJINSIYUPAOWUXIANDEBIANSONGQI,DANGZAI“ZHENGCHANG”WENDUTnXIAJINXINGBIAODINGBINGQUEDINGQIJIBENWUCHASHI,WENDUWUCHAQUYUDADAOZUIXIAO,CHUYUGONGZUOWENDUFANWEI(JIDUISHUCHUXINHAOJINXINGWENDUBUCHANGDEFANWEI)DEZHONGJIANDUAN。

福彩快三 QICI,RUGUOSUODUANGONGZUOWENDUFANWEI,QIEWENDUQUXIANYECHENGXIANXING,ZEZONGDEWENDUWUCHAYEHUIXIANXINGJIANGDI。DANZAIPAOWUXIANGUANXIXIA,ZHEIYIWUCHAHUIPINGFANGGENSHIJIANGDI,BIRU,ZAIDUICHENGSUODUANGONGZUOWENDUFANWEIYIBANDEQINGKUANGXIA(BIRU,CONG-40…+80℃JIANGDIDAO-10…+50℃),WENDUWUCHAFANWEIHUIJIANSHAOSIFENZHISAN。ZHEIYANG,JIUKEYIZAIBUSHIYONGFUZADIANLUDEQIANTIXIA,ZHIZAOCHUZAIMOUYIXIANDINGWENDUDUANNEIGONGZUODEGAOJINGDUBIANSONGQI。ZAI0-40℃DEWENDUFANWEINEI,CAIYONGDIANZUSHIWENBUDIANLUDEWENDUBIANSONGQI,QIDIANXINGWENDUWUCHAQUYUBUCHAOGUO0.5%。

DISAN,RUGUOYONGLAIQUEDINGBIANSONGQIJIBENWUCHADE“ZHENGCHANG”WENDU(TONGCHANGWEISHIWEN),BUCHUYUWENDUBUCHANGDEZHONGXINDIAN,ZEHULVECELIANGWUCHADEWENDUGUANXIFEIXIANXINGHUIDAOZHIBUCHONGWENDUWUCHAZHIDEBUZHENGQUETIXIAN。ZAI-40…+120℃ZHIJIANDUIYALIBIANSONGQIJINXINGWENDUBUCHANGDEQINGKUANG。RUGUOZAISHIWENXIA(~20℃)YIJIZAIWENDUFANWEINEIDEJIXIANWENDUDIANJINXINGBIAOZHUNCELIANG,QUEDINGBUCHONGWENDUWUCHADEHUA,ZEZAIDIWENDUQUYUANJUEDUIZHIJISUANDEWENDUWUCHAXIANXINGXISHU,DADAGAOYUGAOWENDU,SUIRANWUCHADESHIJIWENDUQUXIANDUICHENGFENBUYUWENDUBUCHANGQUYUDEZHONGXINDIAN。

福彩快三 TONGYANG,YEWUFABAOZHENGZAIZHONGXINDIANBUWENHEDEQINGKUANGXIA,ZAILIANGGEWENDUFANWEINEI,TONGSHISHIWENDUCELIANGWUCHADADAOZUIDIHUA。YINWEIRUGUOZUIXIAOWENDUWUCHASHIZAIWENDUBUCHANGQUYUDEZHONGXINDIANDEHUA,NEIME,ZAIPIANLIZHONGXINDIANDENEIDUANWENDUFANWEINEIDEWENDUWUCHA,BIRANZONGSHIYAOBIZAIGAIWENDUQUYUNEIJINXINGWENBUGAOYIXIE,

JIANYUYISHANGSUOSHU,GENGJIAZHENGMING,CAIYONGXIANXINGWENDUXISHUDUIGAOWENYALIBIANSONGQIJINXINGWENDUWUCHABUCHANGSHIBUHESHIDE(JINJIUTAMENDESHUCHUXINHAODESHIJIWENDUQUXIANWUFAYONGXIANXINGFAZELAIMIAOSHUERYAN)。LINGWAI,ZAIDUIGAOWENYALIBIANSONGQIJINXINGWENDUBUCHANGHEBUCHONGWUCHABUCHANGSHI,HAIYOUYIGEWENTI。

ZHONGSUOZHOUZHI,ZAIGAOWENLIUCHENG(300HUO400℃YINEI)XIACELIANGYETIHUOQITIJIEZHIDEYALI,SHIZAIYOUGONGYIJISHUSUOJUEDINGDEMOUYITEDINGWENDUTTEDINGXIASHIXIANDE。XIANRAN,RUGUOZAITTEDINGWENDUXIADUIBIANSONGQIJINXINGBIAODING(QUEDINGJIBENCELIANGWUCHA),BINGZAITTEDINGFUJINDEJIGEWENDUFANWEINEIJINXINGWENDUBUCHANG,ZECISHICELIANGWUCHAKENDINGWEIZUIXIAO。YIHOUDEDINGQIJIANDINGYEZUIHAOYAOZAITTEDINGWENDUXIAJINXING。DANSHI,WULUNSHIZAIYONGHUCHU,HAISHIZAIGUOJIABIAOZHUNHUAWEIYUANHUIDESHIYANSHILI,DOUJIHUWUFAZHEIYANGZUO。ERRUGUOZAISHIWENXIADUIGAOWENBIANSONGQIJINXINGBIAODING,ZEQIZAIGONGZUOWENDUXIADEWUCHAHUIDAFUDUSHENGGAO。

福彩快三 ZAISHIWENTkXIAJINXINGDINGQIJIANDINGSHI(SHIWENDEBIANHUABUYAOCHAOGUO1-2℃),ZAIBIYAODEQINGKUANGXIA,KEJIEZHUYU“LINGDIAN”HE“FANWEI”DIAOJIEANNIUSHEZHIIok(HUOIpk)YIJIImkZHI。JIANCHABIANSONGQIDEFEIXIANXINGHEPIANCHA,RUGUOYUHEGEZHENGSHANGDENGJIDESHUJUXIANGFU,ZEKEYIYONGLAICELIANGGAOWENJIEZHIDEYALI,QIJINGDUYOUJIBENWUCHALIANGGUIDING(DANGTnYUTTEDINGJIEJINSHI),HUOZHEBUCHAOCHUWENDUWUCHAFANWEIDEKUANDU(DANG ТTEDING€ [Тn-50℃, Тn+50℃]SHI)。

ZUIHOUYINGGAIZHICHU,GENJUYONGHUDEYIYUAN,ZAIHEGEZHENGZHONGHAIKEYIZHUMINGZAISHIWENXIAHEWENDUBUCHANGFANWEIJIXIANDIANCEDEDEBIANSONGQISHUCHUXINHAOZAILINGYALIHEZUIDAYALIXIADEJUTISHUZHI,CONGERSHIYONGHUZAIBEICEJIEZHIWENDUYIZHIDEQIANTIXIA,KEYIKAOLVDAOYALICELIANGDEBUCHONGWENDUWUCHA,BINGJIDADETIGAOCELIANGJINGDU。

综上所述,对于在很宽的温度范围内工作的机械量式应变电阻传感器来说,如采用线性温度系数对补充温度误差进行补偿,会导致测量结果出现非常大的失真。正确的做法应是在传感器的温度补偿间隔内对温度误差进行补偿。这对于输出信号的温度曲线为非线性的半导体式应变电阻传感器来说,尤为重要。本文源自泽天传感,转载请保留出处。