l 薄膜铂电阻系列
|
型号
|
外形尺寸
W×L×Hmm
|
标称阻值
R0
|
工作电流
mA
|
引线尺寸
W×H×Lmm
|
工作温度
℃
|
误 差
|
外形图
mm
|
|
CRZ-1632-100-Ni
|
1.6×3.2×1.0
|
100Ω
|
1
|
0.25×0.15×12
|
-40～450
|
1/3DIN
A
B
2B
|
|
|
CRZ-2005-100-Ni
|
2.0×5.0×1.0
|
0.25×0.15×12
|
-40～450
|
|
CRZ-2005-100-Pd
|
0.3×0.2×10
|
-50～500
|
|
CRZ-2005-1000-Ni
CRZ-2005-500-Ni
|
500Ω
1000Ω
|
0.5
|
0.25×0.15×12
|
-40～450
|
|
ST-1003-Pt
|
1.0×3.0×1.3
|
20Ω
|
1
|
0.25×0.15×12
|
-50～500
|
l 线绕陶瓷PC(玻璃PG)铂电阻
|
型号
|
外形尺寸
D×Lmm
|
标称阻值R0
|
工作电流mA
|
引线尺寸
D×Lmm
|
误差
|
工作温度
℃
|
外形图
mm
|
|
PC1612
|
1.6×12
|
100Ω
|
5
|
0.20×10
|
A
B
|
-200～600
-200～850
|
|
|
PC1615
|
1.6×15
|
0.20×10
|
|
PC1625
|
1.6×25
|
0.20×10
|
|
PC2213
|
2.2×13
|
0.35×10
|
|
PC2215
|
2.2×15
|
|
PC2515
|
2.5×15
|
|
PC3015
|
3.0×15
|
|
PC3025
|
3.0×25
|
pt100的应用
石油倾点温度测试PT100温度传感器的标定
摘要：作者设计了直径为3mm、长为27cm 的Pt100型传感器，根据0.10℃刻度的温度测试仪作为标定标准，利用软件来矫正其非线形失真，该产品实现对石油倾点温度信号的采集和标定。
关键词： Pt100传感器；电桥测温；石油倾点
一、引言
石油倾点温度是指管道内凝固态的原油开始融解流动的*低温度。国际上测试规程要求每隔2℃就要对其流动情况进行判断并测温，但由于石油运输管线很长，原油每升温1℃需要大量能源，因此对倾点温度测量的精度对油田节能有重大意义。我们选用PT100温度传感器来完成对石油倾点温度的测量。
天天时时彩
二、Pt100工作原理及其主要技术参数
Pt100传感器是利用铂电阻的阻值随温度变化而变化、并呈一定函数关系的特性来进行测温，其温度/阻值对应关系为[1]：
（1）-200℃<t<0℃时，RPt100=100[1+At+Bt2+Ct3（t-100）] （1）
天天时时彩
（2）0℃≤t≤850℃时，RPt100=100（1+At+Bt2） （2）
SHIZHONG，A=3.90802×10-3；B=-5.80×10-7；C=4.2735×10-12。
天天时时彩Pt100WENDUCHUANGANQIDEZHUYAOJISHUCANSHURUXIA：CELIANGFANWEI：-200℃～+850℃；YUNXUPIANCHAZHI△℃：AJI±（0.15＋0.002│t│）， BJI±（0.30＋0.005│t│）；REXIANGYINGSHIJIAN<30s；*XIAOZHIRUSHENDU：REDIANZUDE*XIAOZHIRUSHENDU≥200mm；YUNTONGDIANLIU≤5mA。LINGWAI，Pt100WENDUCHUANGANQIHAIJUYOUKANGZHENDONG、WENDINGXINGHAO、ZHUNQUEDUGAO、NAIGAOYADENGYOUDIAN。
SAN、QINGDIANWENDUCELIANGYUANLI：
1、YUANLIFANGKUANGTU
GENJUQINGDIANWENDUCESHIDEGUONEIWAIYAOQIU—WENDUMEIJIANG2℃JIUYAODUIYOUYANGDENINGJIEQINGKUANGJINXINGJIANCE，WOMENSHEJILECELIANGGUOCHENG（RUTU1）。
天天时时彩2、DIANQIAOCAIJISHUJUDEDIANLUTUJIYUANLI
Pt100DIANQIAODIANLURUTU2SUOSHI。QIZHONG，R1﹑R2﹑R3﹑RPt100ZUCHENGDIANQIAO，R1=R2=R3=R0。WEILEBIMIANLIUGUOPt100CHUANGANQIDEDIANLIUGUODASHIQIFAREJINERDAOZHIFEIXIANXINGSHIZHENZENGDA，DIANQIAODIANYABUYITAIGAO，YIBANYAOQIUIm<5mA，DIANQIAODIANYAVbrg=1V。DIANQIAOSHUCHUYACHAWEI：
VD= （3）
LINGRPt100-R0=ΔR，ZEYOU：
VD= （4）
天天时时彩YOUPt100WENDU/ZUZHIDUIYINGGUANXISHIKEZHI，DANGWENDUJIAODISHI，Pt100DEZUZHIBIANHUALIANGΔRXIANGDUIYUR0JIAOXIAO，ZEDIANQIAOSHUCHUYACHAWEI： VD= ，JIVDZHENGBIYUPt100CHUANGANQIDEZUZHIBIANHUALIANGΔR，YESHUOMINGWENDUJIAODISHI，Pt100CHUANGANQIDEXIANXINGDULIANGHAO；DANGWENDUJIAOGAOSHI，ΔR/R0DEZHIJIAODA，Pt100CHUANGANQIDEXIANXINGDUBIANCHA，CISHIYAOYONGRUANJIANLAIJIAOZHENG。
四、测量中的定量计算及误差分析
天天时时彩1、YUNSUANFANGDAQIFANGDABEISHUDEQUEDING
天天时时彩YOUCHUANGANQIDEWENDUHEZUZHIGUANXISHIKEZHI，DANGWENDUBIANHUA1℃SHI，Pt100DEZUZHIBIANHUAYUEWEI0.38W，DUIYINGDEDIANQIAOSHUCHUYACHAWEI：VD= =0.001V。
RUOCAIYONG8WEIA/DZHUANHUANQI，FENBIANLVWEI0.0196V，ZEYUNSUANFANGDAQIDE*XIAOFANGDABEISHUYINGWEI20BEI。RUOCEWENDESHANGXIANDINGWEI85℃ （QINGDIANWENDUYIBANXIAOYUGAIWENDU）， PtCHUANGANQIZAI85℃SHIDELILUNZUZHIWEI132.8W，DIANQIAODIANYAWEI1V，ZEVD= 0.08296V≈0.083V，JIYUNFANGDE*DAFANGDABEISHUWEI60.3。ZONGHESHANGSHU，KEXIANDINGYUNFANGDEFANGDABEISHUYINGZAI20～60ZHIJIAN。
2、WUCHAFENXI
（1）QIAODIANYAVbrg=1VSHIBODONGCHANSHENGDEWUCHA[2]
CONGSHANGMIANDEFENXIKEZHI，ZAIMOUYIWENDUSHI，Pt﹑R0BUBIAN，SHEDIANQIAODIANYAYOUΔVbrg（mV）DEBIANHUA，JIUHUIDAOZHIVDYOU （mV）DEBIANHUA。ZAI0℃SHI，ΔR=5W，ZEVD= =0.013ΔV(mV)；RUOLINGΔVD=1mV，ZEΔV=76mV，JI0℃ZUOYOU，DIANQIAODIANYAVbrgYOU76mVBODONG，HUIYINQI1℃DEWENDUWUCHA；TONGLIZAI85℃ZUOYOU，DIANQIAODIANYAYOU10mVDEBODONG，ZEHUIYINQI1℃DEWENDUWUCHA。KEJIANDIANQIAODIANYAVbrg=1VSHIDEBODONGXISHUJIDUICEWENDAILAIDEWUCHASHIHENDADE，YINGJIANGQIDIANYABODONGXIANZHIZAI1mVDEJIBIESHANG。
（2）YUNFANGFEIXIANXINGCHANSHENGDEWUCHA
天天时时彩YOUYUYUNFANGDEFANGDABEISHUYINGZAI20～60ZHIJIAN，KEJIANGFANGDABEISHUDINGWEI50；RUOCEWENFANWEISHI0℃～85℃，ZEZAI0℃SHI，VD=13mV；ZAI85℃SHI，VD=99.5mV，SHUOMINGSHURUXINHAODEFANWEIZAI13mV～99.5mVZHIJIANBIANHUA。YIPINGJUNZHI50ZUOWEIFANGDABEISHU，CISHISHURUXINHAOWEI13mV，HUANSUANCHULAIDESHURUDIANYAXINHAOZHIWEI12.48mV，ΔVD=-0.52mV，JIANGHUIYINQIYUE1.5℃DEWUCHA。YOUCIKEJIANYUNFANGDEFEIXIANXINGJIANGHUIDAILAIDAYUE1.5℃DEWUCHA，ZAISHIJICELIANGZHONG，TIGAOYUNFANGXIANXINGDUYIJIYUNFANGFANGDABEISHUJUNKEYIJIANSHAOYOUYUNFANGDAILAIDEWUCHA。
（3）A/DZHUANHUANQIFEIXIANXINGDAILAIDEWUCHA
ZAISHIJIYINGYONGZHONGHUIFAXIAN，DUITONGYIMONISHURUXINHAOVi，JINGA/DZHUANHUANDECHUDESHUZILIANGHUIYOU±1WEIDETIAOBIAN，ZHEISHIYOUA/DZHUANHUANQIDEPANDUANWUCHAZAOCHENGDE。A/DZHUANHUANQIDEYIWEITIAOBIANDUIYINGDEDIANYAZHI，JIWEIGAIBAWEIA/DZHUANHUANQIDEFENBIANLV，WEI0.0196V=19.6mV；ZHESUANDAOSHURUDUANDUIYINGDEDIANYAZHIWEI0.392mV，JIANGHUICHANSHENG0.392℃DEWENDUWUCHA。
（4）A/DZHUANHUANQICANKAODIANYAVrefDAILAIDEWUCHA
A/DZHUANHUANQICAIYONGZHUCIBIJINSHIZHUANHUANQIAD0809，QIZHUANHUANSUDUJIAOMAN，RUGUOSHURUXINHAOZAIZHUANHUANGUOCHENGZHONGBUDUANBIANHUA，ZEYIFASHENGCUOWU，SHIYONGSHIYINGJIACAIYANGBAOCHIQI，QIEZHIDUIBENCICAIYANGDEXINHAOJINXINGZHUANHUAN，YIQUEBAOZHUANHUANXINHAOKEKAOXING。LINGWAI，ZAIBIJIAOZHUANHUANGUOCHENGZHONG，VrefDEBIANHUAHUIDUISHUCHUDEERJINZHIDAIMAYOUYINGXIANG。ZAIMONISHURUXINHAOBUBIANDEQINGKUANGXIA，RUOVrefBIANDA，HUIDAOZHISHUCHUDEERJINZHIDAIMABIANXIAO；FANZHI，ZEBIANDA，CONGERDAOZHILEWENDUWUCHA。
五、注意事项与结论
天天时时彩SHIYONGZHONGYINGZHUYI，YOUYUREDUOXINGHUISHIREDIANZUZUZHIBIANHUAZHIHOU，WEIXIAOCHUWUCHA，YINGJINKENENGDIJIANSHAOREDIANZUBAOHUGUANWAIJING，SHIDANGZENGJIAREDIANZUDECHARUSHENDUSHIREDIANZUSHOUREBUWEIZENGJIA。YAOJINGCHANGJIANCHABAOHUZHUANGKUANG，FAXIANYANGHUAHUOBIANXINGYINGLIJICAIQUCUOSHI，BINGDINGQIJINXINGXIAOYAN。REDIANZUYINGBIMIANFANGZHIZAILUPANGHUOJUJIARETITAIJIN，YINGJINLIANGANZHUANGZAIZHENDONGXIAODEDIFANG；TONGSHIWEIBIANYUSHIGONGHEWEIHU。ANZHUANGWEIZHIYINGJINKENENGBAOCHICHUIZHI，DANZAIYOUYUANYOULIUDONGSHIZEBIXUQINGXIEANZHUANG，JIEXIANHECHUKONGYINGXIANGXIA。
天天时时彩YOUSHANGMIANDEFENXIKEDE，WEILETIGAOWENDUCELIANGDEZHUNQUEXING，YINGSHIYONG1VDIANQIAODIANYUAN﹑A/DZHUANHUANQIDE5VCANKAODIANYUANYAOWENDINGZAI1mVJI；ZAIJIAGEYUNXUDEQINGKUANGXIA，Pt100CHUANGANQI﹑A/DZHUANHUANQIHEYUNFANGDEXIANXINGDUYAOGAO。TONGSHI，LIYONGRUANJIANJIAOZHENGQIWUCHA，KEYISHICEDEWENDUDEJINGDUZAI±0.2℃。
ZAICPUDEYINGYONG
YIBANDEWENDUCHUANGANQI(WULUNSHIREMINDIANZUHUOICWENDUCHUANGANQI)DOUXUYAOHENZHANGDESHIJIANCAINENGGOUJIANGRECHUANDAODAOCHUANGANQIDEHEXINBUFEN。GENJUNationalNEIBUDESHIYANJIEGUO，CONGCPUBARECHUANDAODAOKONGQIZHONG，ZAICONGKONGQIZHONGCHUANDAODAOWENDUCHUANGANQIZHONG，ZHEIGEGUOCHENG*SHAOXUYAO20FENZHONGYISHANGDESHIJIAN。RUGUOSANREPIAN(Heat Sink)MEIZHUANGHAOHUOFENGSHANMEIZHUAN，BUDAOERFENZHONGDESHIJIAN，SHIYONGZHEDECPUKENENGJIUHUISHAOHUI。
SUOYI，CPUCHANGSHANG(IntelHEAMD)JIANGYIKE3904MAIRUXINPIANZHONG，WOMENCHENGZHEIKE3904WEIYUANCHENGERJIGUAN（Remote Diode），YINWEITALIWENDUCHUANGANQIBENSHENHENYUAN。YUSHIZAIDUANDUANJIGEHAOMIAO(mini-second)ZHONG，WENDUCHUANGANQIBIANNENG**DIZHENCEDAOCPUNEIBUDEWENDULE。XIANZAIDEJISHUYAONENGZUODAO1℃DE**DUYIJINGBUSHIHENNANDESHI，ERQIEHUIBIANCHENGPCHEBIJIBENJISUANJIDEYIGEZHONGYAODEQUSHI。
ZAILM86(TU1)DEYUNYONGSHILIZHONG，TONGCHANGT_CRIT_ADESHUCHUXINHAOYONGLAIZUOGUOWENDUBAOHUDEGONGNENG，WOMENCHENGZHIWEIREBAOHU（Thermal Shutdown）。HAOCHUSHIDANGWindowsHUOMOUYIGEYINGYONGCHENGXUZAOCHENGXITONGSIJISHI，LM86HAINENGBAOHUZHENGGEXITONG。ERAlertZHEIGESHUCHUXINHAOBIANKEYIZUOWEIRUANJIANZHONGDUAN，YIDADAOACPIGUIGEDEYAOQIU。LINGWAI，LM86CHULENENGJIEDAOCPUDERemote DiodeZHIWAI，BENSHENNEIBUHAIYOUYIKECHUANGANQI（sensor），KEYIGANCELM86SUOZAIDEWENDU。SUOYI，QIANMIANSUOTIDAODEPCDEXITONGWENDUHEBIJIBENJISUANJIDEDAOREGUAN，BIANKEYISHIYONGLM86DEBENDICHUANGANQILAIZHENCE，BUXUYAOZAIHUAEWAIDECHENGBENQUMAILINGWAIYIKEWENDUCHUANGANQI。
天天时时彩 * HUITUXINPIANHUO3DJIASUXINPIAN - LM26, LM88
TONGCHANGHUITUXINPIANYESHIBUNENGBEIJIANGPINLAIZHIXINGDE，FOUZEHUAMIANHUIBIANCHENGMANDONGZUOBOFANGYIBAN。NEI*HAODEFANGFAHAISHIJIAYISANREFENGSHAN。ZAIZHEILIJIUYOULIANGGEFANGSHILAIJIHUOHEGUANBIFENGSHANLE，**GESHIBIANYIDEZUOFA，YONGLM26LAIZHENCEWENDU(RUTU2)，DENGDADAOMOUYIGEJIEXIANSHIBIANJIHUOFENGSHAN，RUOWENDUJIANGXIALAILE，BIANZIDONGGUANBIFENGSHAN。**SHICAILM88LAISHEJISHIMAODE4DUANBIANSUFENGSHANKONGZHIQI(RUTU3)，RANGBUTONGWENDUDEZHUANGKUANGNENGGOUYOUBUTONGDEZHUANSU。
* Power MOSFET - LM26
WULUNSHIPCDEDIANYUANGONGYINGQIHUOZHESHIBIJIBENJISUANJIZHONGDEDC-DCZHUANHUANMOKUAI，NEIBUDOUHUIYOUYIKEHENTANGDEPower MOSFET。SUIRANDIANYUANBUFENDOUYOUYIGEFENGSHANSUISHIZAIZHUANDONG，DANSHIWOMENBIXUSHEXIANGYIJIANSHI：WANYIFENGSHANHUAIDIAOLE，HUOZHENEIBUDIANLUYOUFASHENGDUANLUDESHIHOU，ZENMEBAN？LIYONGLM26DEGUOWENDUBAOHUGONGNENG，ZAIJIXIANWENDUSHINENGGOUZIDONGGUANBIDIANYUANERDADAOGUANBI（Shutdown）HUOSHEN*HUIFU（Recovery）DEGONGNENG。
* PCMCIA - LM88
LM88BENSHENBINGBUBEISHEJILAIZUOWEIFENGSHANDE4DUANBIANSUKONGZHIQI，ERSHINENGTONGSHIZHENCEERGEDAICEWU。YIBANBIJIBENJISUANJIDEPCMCIACHACAODOUYOULIANGGE，SUOYILM88SHIYONGLAIZHENCEPCMCIADE*JIAXUANZE。YOUYULM88BUXUYAOYONGRUANJIANLAIKONGZHI，SUOYIWOMENBUYONGDANXINWindowsSIJIHUOLANPINGMU(Blue Screen)DEWENTI。
虽然在过去的PC和笔记本计算机中，温度传感器并不起眼，也没有工程师会去注意它的重要性，更不用说使用者能感觉到它的存在。但是，对整个系统这些重要芯片来说，它是很重要的保护者，尤其是当系统愈来愈高速且愈来愈热之后，它的重要性也会更加明显，并且能左右系统的稳定性。希望本文能够带给读者一个清晰的印象，究竟温度传感器在PC系统中是扮演哪些角色？也希望工程师在验证系统稳定性时，不妨考虑一下温度传感器的一些重要参数和功用。