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几种测量连续液位的液位传感变送器原理介绍

发布时间:2020-9-18      发布人:泽天公司      点击:

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压力式液位传感器

1、压力式液位传感器(投入式液位变送器)

投入式液位变送器一般采用半导体膜盒结构,自检、自诊断和远传的功能。利用金属片接受液体压力.通过封入的硅油导压传送给半导体应变片进行压力式液位传感器的应用越来越广泛。近年来.已经研制出了体积小、温度范围宽、可靠性好、精度高的压力式液位传感器,液位的测量。由于固态压力传感器(压阻电桥式)性能的提高和微处理技术的发展。投入式液位变送器的应有十分广泛。这种投入式液位传感器也可以用于腐蚀性液体,如上图。

2、超声波液位传感器

YIZHONGFEIJIECHUSHIDEYEWEICHUANGANQI,YINGYONGLINGYUSHIFENGUANGFAN。QIGONGZUOYUANLISHIGONGZUOSHIXIANGYEMIANHUOBEIQIFANSHEHOU,FENTIWAIBIAOFASHEYISHUCHAOSHENGBO。CHUANGANQIZAIJIESHOUCIFANSHEBO。SHESHENGSUYIDING,GENJUSHENGBOWANGFANDESHIJIANJIUKEYIJISUANCHUCHUANXIQIDAOYEMIAN(FENTIWAIBIAO)JULI,JICELIANGCHUYEMIAN(FENTIWAIBIAO)WEIZHI。QIKEYIZAIJIAOBANQIGONGZUODEGONGKUANGXIACELIANGYEWEI。

3、激光式液位传感器

QIGONGZUOYUANLIYUCHAOSHENGBOYEWEICHUANGANQIXIANGTONG。JIGUANGSHIYEWEICHUANGANQIYIBANCAIYONGJINHONGWAIGUANG。BAGUANGFASHELINGYIJUBUTONGGUOBANTOUSHEFANSHEJINGDEJIGUANGJINGGUOGUANGXUEXITONGCHUZHICHENGWEIYIDINGKUANDUDEPINGXINGGUANGSHUZHAOSHEZAIWUTIMIANSHANG。FANSHEBODAODACHUANGANQIJIESHOUBUZAIZHUANHUANCHENGDIANXINHAO。YINWEICONGZHAOSHEDAOJIESHOUDESHIJIANHENDUAN,CHUDEJIGUANGLIYONGBANTOUSHEFANSHEJINGCHULI。

4、插入式电容式液位变送器

DIANRONGSHIYEWEICHUANGANQIYOULIANGGEDAOTIDIANJI,YOUYUDIANJIJIANSHIQITI、LIUTIHUOGUTIERDAOZHIJINGDIANRONGDEBIANHUA。DIANRONGSHIYEWEICHUANGANQIKEYICAIYONGWEIJIKONGZHI,SHIXIANZIDONGDIAOZHENGBINGQIEJUYOUZIZHENDUANDEGONGNENG,SHIXIANGAOKEKAOXINGDEXINXICHUANSONG。YOUYUDIANRONGSHIYEWEICHUANGANQIWUJIXIEKEDONGBUFEN,CAOZUOFANGBIAN,XINGZHUANGHEJIEGOUDEZIYOUYIDA,YINCI,YINGYONGBIJIAOGUANGFAN。

5、自动平衡式液位传感器

这种液位传感器通过检测平衡浮子浮力的变化来进行液位的测量。可以配备微机,使之具有利用它可以高精度地测量大跨度的液位。此外,随着科技的发展,近年来出现了数字式智能化的液位传感器,将其传感器技术与微处理器结合的智能液位变送器。本文源自泽天传感,转载请保留出处。