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压力式温度计的温度测量原理、特点与应用场合

2012-8-3

一、压力式温度计的温度测量原理

压力式温度计是一种膨胀式温度计,但它不是靠物质受热膨胀后的体积变化或尺寸变化反映温度,而是靠在密闭容器中液体或气体受热后压力的变化来反映被测温度,因此这种温度计的指示仪表实质上是常规压力表,属于压力传感器的范畴。

DANGYALISHIWENDUJIDEWENBAOGANSHOUDAOWENDUBIANHUASHI,MIBIXITONGNEIBAOHEZHENGQICHANSHENGXIANGYINGDEYALI,YINQIDANXINGYUANJIANQULVDEBIANHUA,SHIQIZIYOUDUANCHANSHENGWEIYI,ZAIYOUCHILUNFANGDAJIGOUBAWEIYIBIANWEIZHISHIZHI,ZHISHIXIANGYINGDEWENDUZHI。QIGONGZUOGUOCHENGRUXIA:WENDUBIANHUAΔT→JIEZHIPENGZHANG→NEIYALIZENGJIA→DANHUANGGUANBIANXING→ZIYOUDUANWEIYIΔX →YOUCHUANDIJIGOUDAIDONGZHIZHENXUANZHUANθ→ZHICHUWENDUDEBIANHUA。  

二、压力式温度计的结构组成

YALISHIWENDUJIZHUYAOYOUWENBAO、MAOXIGUANHEYALIMINGANYUANJIAN(RUDANHUANGGUAN、MOHE、BOWENGUANDENG)ZUCHENG,RUTUSUOSHI。WENBAO、MAOXIGUANHEDANHUANGGUANSANZHEDENEIQIANGGONGTONGGOUCHENGYIGEFENGBIRONGQI,QIZHONGCHONGMANGONGZUOWUZHI。XIAMIANJIESHAOYALISHIWENDUJIGEZUCHENGBUFENDEZUOYONGYUCAIZHI。YALISHIWENDUJIDEJIEGOUZUCHENGRUXIATU。

压力式温度计组成原理

1)WENBAO:WENBAOZHIJIEYUBEICEJIEZHIJIECHU,TABAWENDUBIANHUADICHUANDIJINEIBUGONGZUOWUZHI。SUOYI,QICAILIAOYINGJUYOUFANGFUNENGLIHELIANGHAODEDAORELV。WEILETIGAOLINGMINDU,WENBAOBENSHENDESHOUREPENGZHANGYINGYUANYUANXIAOYUQINEIBUGONGZUOWUZHIDEPENGZHANG,GUCAILIAODETIPENGZHANGXISHUYAOXIAO。CIWAI,HAIYINGYOUZUGOUDEJIXIEQIANGDU,YIBIANZAIJIAOBODERONGQIBISHANGCHENGSHOUJIAODADENEIWAIYALICHA。WENBAOCHANGYONGZITONG,BUXIUGANGZHICHENG,HUANGTONGZHINENGYONGYUFEIFUSHIXINGJIEZHICHANGHE。

2)YALISHIWENDUJIDEGONGZUOJIEZHI:CHANGYONGGANYOU、SHUIYIN、JIABENDENGYETI。

3)MAOXIGUANCAILIAOTONGWENBAO,ZUOYONGSHILIANJIEYALIBIAOWENBAOYUCHUANDIYALIDAOGUAN。

4)PUTONGYALIBIAO:YONGLAIXIANSHIWENDUSHIZHI。

三、压力式温度计的特点

1)KEJIUDICELIANG,YEKEZAI60MIFANWEINEIJIAOYUANJULIXIANSHI,BAOJING;

2)JIEGOUJIANDAN,JIAGEBIANYI,FANWEI-80~500℃,BEICEJIEZHIYALIWEI6MPa;

3)CHUDIANJIEDIANSHIWAI,WUXUDIANYUAN,SHIHEYIRAN、YIBAOHUANJING;

4)YALISHIWENDUJIDEQUEDIAN:YOUYUSHIZHISHIYOUMAOXIGUANCHUANDI,ZHILIUSHIJIANDA,LINGWAI,MAOXIGUANJIXIEQIANGDUJIAOCHA,YISUNHUAI,ERBUYIXIUFU。LINGWAI,YALISHIWENDUJIDECELIANGJINGDUYIBANJIAODI。SHUYUJIXIESHICHUANGANQI,YINCIWUFAYUDCSJICHENG。

四、压力式温度计的应用场合

压力式温度计适用于现场供电困难、对测量精度和实时性要求不高温度测量场合。在使用时首先需要校正,待示值稳定后读数。本文由泽天传感整理,福彩快三,转载请保留。

应用图片

ZANWUTUPIAN。