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温度传感器的类型如何判定

温度传感器的类型如何判定

发布日期:2018-03-03 作者:梁辉 点击:

首先,必须选择传感器结构,使敏感元件规定测量时间之内达到所测流体或被测表面温度。温度传感器输出仅仅敏感元件温度。实际上,要确保传感器指示温度即所测对象温度,常常很困难。NTC Temperature Sensor  NTC Thermal Sensors.jpg容器中流体温度般用热电偶或热电阻探头测量,但当整系统使用寿命比探头预计使用寿命长得多时,或者预计会相当频繁拆卸出探头以校准或维修却能容器上开口时,容器壁上安装永久性热电偶套管。用热电偶套管会显著延长测量时间常数。当温度变化很慢且热导误差很小时,热电偶套管会影响测量精确度,但如果温度变化很迅速,敏感元件跟踪上温度迅速变化,且导热误差又能增加时,测量精确度就会受到影响。因此要权衡考虑维修性和测量精度这两因素。

管家婆精选资料八码中特REDIANOUHUOREDIANZUTANTOUQUANBUCAILIAODOUYINGYUNENGHETAMENJIECHULIUTISHIYING。SHIYONGLUOLUYUANJIANTANTOUSHI,BIXUKAOLVYUSUOCELIUTIJIECHUGEBUJIANCAILIAO(MINGANYUANJIAN、LIANJIEYINXIAN、ZHICHENGWU、JUBUBAOHUZHAODENG)SHIYINGXING,SHIYONGREDIANOUTAOGUANSHI,ZHIXUYAOKAOLVTAOGUANCAILIAO。

DIANZUSHIREMINYUANJIANJINRUYEWEIBIANSONGQITIJIDUOSHUQITISHI,TONGCHANGMIFENG,ZHISHAOYAOTUCENG,LUOLUDIANZUYUANJIANNENGJINRUDAODIANHUOWURANLIUTIZHONG,DANGXUYAOQIKUAISUXIANGYINGSHI,JIANGTAMENYONGYUGANZAOKONGQIHEXIANJIZHONGQITIJIMOUXIEYEWEIBIANSONGQITIZHONG。DIANZUYUANJIANRUYONGTINGZHIHUOMANSULIUDONGLIUTIZHONG,TONGCHANGXUMOUZHONGQIAOTIZHAOZHUYIJINXINGJIXIEBAOHU。

管家婆精选资料八码中特DANGGUANZI、DAOGUANHUORONGQINENGKAIKOUHUOJINZHIKAIKOU,YINNENGSHIYONGTANTOUHUOREDIANOUTAOGUANSHI,TONGGUOWAIBIQIANJIAHUOGUDINGBIAOMIANWENDUCHUANGANQIFANGFAJINHECELIANG。QUEBAOHELICELIANGJINGDU,CHUANGANQIBIXUYUHUANJINGDAQIREGELIBINGYUREFUSHEYUANGELI,QIEBIXUTONGGUOCHUANGANQISHIDANGSHEJIYUANZHUANGSHIBIDUIMINGANYUANJIANRECHUANDAODADAODAOZUIJIAZHUANGTAI。


温度传感器简单测量误差方法

MEIGECHUANGANQIDOUHUIYOUQIBUTONGDECELIANGFANGFA,ERWENDUCHUANGANQIDANDUSHIYONGJINXINGCELIANGDEFANGFASHI,BACHUANGANQIZHIYUWENDUHENGDINGDEHUANJINGZHONG,CEDINGWENDUCHUANGANQIZAIBUTONGDEWENDUZHIXIAXIANSHIDEWENDUHEZHUNQUEWENDUZHIJIANDEWUCHA。XUYAOZHUYIDESHI,CHULEYAODANDUCELIANGWENDUCHUANGANQIDEWUCHA,HAIYAOJIANCEYIXIACHUANGANQIDEPEIHEBUFENDEWUCHA,BUTONGDEHUANJING,BUTONGDEHANJIEFANGFA,BUTONGDEJIEXIANFANGSHI,DOUHUIDAOZHIYOUYIDINGDEWUCHA,ZHEIXIEQITAWUCHAXUYAOBATAPAICHU。JIUSHIBACHUANGANQIHEJISUANQITONGSHICELIANG,ZHEIYANGJIUXUYAOGENJUBUTONGDEJISUANQIDESHEJIYUANLISHIYONGXIANGYINGDECELIANGFANGFA,LIANGZHONGCELIANGFANGFACEDEDEWUCHAJIEHEJIUKEYIDEDAOWENDUCHUANGANQIDEZHENGQUEWUCHA,GONGSHIXUYAOGENJUNIBUTONGDEXUQIU,DECHUZUIFUHENIXIANKUANGDECELIANGWUCHADEFANGFA。

如果要进行可靠的温度测量,首先就需要选择正确的温度仪表,也就是温度传感器。其中热电偶、热敏电阻、铂电阻(RTD)和温度IC都是测试中最常用的温度传感器。


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