【经验】铂电阻传感器三线制接线法,消除引线电阻带来的测量误差
铂电阻传感器连接方法
工程师在使用TE铂电阻温度传感器时候,经常会对接法感到困惑,有时会对二线制、三线制、四线制觉得迷茫。本文将简单说明下铂电阻传感器连接方法,并着重介绍下三线制的接法。
铂电阻传感器由于其电阻值小,灵敏度高,所以引线的阻值不能忽略不计,采用三线式接法可消除引线线路电阻带来的测量误差。
铂电阻的接法是采用2线、3线、4线,主要由使(选)用的二次仪表来决定。一般显示仪表提供三线接法,铂电阻传感器一端出一颗线,另一端出两颗线,都接仪表,仪表内部通过桥抵消导线电阻。一般PLC为四线,每端出两颗线,两颗接PLC输出恒流源,PLC通过另两颗测量铂电阻上的电压,也是为了抵消导线电阻,四线精确度最高,三线也可以,两线最低,具体用法要考虑精度要求和成本。
三线制接线法
三线制:在热电阻的根部的一端连接一根引线,另一端连接两根引线的方式称为三线制。这种方式通常与电桥配套使用,两个导线分别接在电桥的两个桥背上,另一根线接在电桥的电源上,消除了引线电阻的误差。可以较好的消除引线电阻的影响,是工业过程控制中的最常用的引线电阻。
铂电阻传感器可用a、b、c(或黑、红、黄)来代表三根线,三根线之间有如下规律:
引出的三根导线截面积和长度均相同(即r1=r2=r3),测量铂电阻的电路一般是不平衡电桥,铂电阻(Rpt)作为电桥的一个桥臂电阻,将导线一根(r1)接到电桥的电源端,其余两根(r2、r3)分别接到铂电阻所在的桥臂及与其相邻的桥臂上,这样两桥臂都引入了相同阻值的引线电阻,电桥处于平衡状态,引线电阻的变化对测量结果没有任何影响。
图1:铂电阻传感器三线制连接图
当R1×(Rx+r2+r3)=R2×(RPt100+r2+r1),电桥平衡时,U=0;当Rpt受温变化后,电桥不平衡,U≠0。
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目录- 数字元件传感器和开发工具 流量传感器 力传感器 湿度传感器 液位传感器 血氧传感器 压电薄膜传感器 位置传感器 压力传感器 速率和惯性传感器 扫描阀及系统 速度传感器 温度传感器 扭矩传感器 超声波传感器 振动传感器 水位传感器
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目录- Company Profile DIGITAL COMPONENT SENSOR DEVELOPMENT TOOLS FLOW SENSORS FORCE SENSORS HUMIDITY SENSORS LIQUID LEVEL SENSORS PHOTO OPTIC SENSORS PIEZO FILM SENSORS POSITION SENSORS PRESSURE SENSORS RATE AND INERTIAL SENSORS SCANNERS AND SYSTEMS SPEED SENSORS TEMPERATURE SENSORS TORQUE SENSORS ULTRASONIC SENSORS VIBRATION SENSORS WATER LEVEL SENSORS
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应用方案 发布时间 : 2020-03-24
物联网传感器市场未来五年的复合年增长率将达到16%,圣邦微可提供模拟和数字两大温度传感器系列产品和选型方案
作为物联网解读外界的“感官”,传感器无处不在。作为长期深耕温度传感器领域的专业厂商,圣邦微电子目前拥有模拟和数字两大温度传感器系列,累计十余款产品。随着集成温度传感器生产成本的降低,上述产品已经在越来越多的领域中得到广泛应用。
原厂动态 发布时间 : 2023-07-20
TE Connectivity(泰科TE)PTF-FAMILY系列铂金温度传感器数据手册
描述- PTF- FAMILY 铂金温度传感器(Platinum Temperature Sensors)
型号- NB-PTCO-005,NB-PTCO-126,NB-PTCO-006,PTFM102C1G0,PTFM102B1A0,PTFC102B1A0,NB-PTCO-002,PTFD102B1A0,PTFF102B1A0,PTFF101A1G0,PTFC102C1G0,PTFM101T1A0,PTFM101A1A0,PTFD101A1G0,PTFF101C1A0,PTFD101C1A0,PTFC101A1A0,PTFM101B1G0,PTFC101T1A0,PTFF101T1G0,PTFD101T1G0,NB-PTCO-012,NB-PTCO-011,NB-PTCO-013,PTFF101B1G0,PTFC101B1G0,PTF-FAMILY,NB-PTCO-180,NB-PTCO-182,NB-PTCO-181,NB-PTCO-184,PTFD102B1G0,NB-PTCO-183,NB-PTCO-186,PTFM102B1G0,NB-PTCO-185,NB-PTCO-188,NB-PTCO-187,NB-PTCO-101,NB-PTCO-189,PTFC102C1A0,PTFD102A1A0,PTFC102A1G0,PTFD101C1G0,PTFD102T1A0,PTFF101A1A0,PTFM101C1A0,PTFM101A1G0,PTFC102T1G0,NB-PTCO-191,PTFF102C1G0,NB-PTCO-190,PTFF101T1A0,NB-PTCO-193,NB-PTCO-192,PTFM101T1G0,NB-PTCO-169,PTFF101B1A0,PTFM101B1A0,PTFD101B1A0,PTFC101B1A0,PTFM101C1G0,NB-PTCO-160,PTFM102T1A0,NB-PTCO-162,NB-PTCO-161,NB-PTCO-164,NB-PTCO-163,NB-PTCO-166,NB-PTCO-165,NB-PTCO-168,NB-PTCO-046,NB-PTCO-167,PTFC101C1G0,PTFC102T1A0,PTFF102T1G0,PTFD102T1G0,NB-PTCO-171,NB-PTCO-050,NB-PTCO-170,NB-PTCO-173,NB-PTCO-172,PTFD102A1G0,PTFF102A1G0,NB-PTCO-175,NB-PTCO-053,NB-PTCO-174,NB-PTCO-177,NB-PTCO-176,PTFM102A1A0,NB-PTCO-058,NB-PTCO-179,PTFC102A1A0,PTFD102C1A0,PTFF102C1A0,NB-PTCO-178,NB-PTCO-148,NB-PTCO-029,PTF,NB-PTCO-149,PTFC102B1G0,PTFD101B1G0,PTFM102T1G0,PTFF102B1G0,NB-PTCO-142,NB-PTCO-024,NB-PTCO-159,PTFF101C1G0,PTFF102T1A0,PTFF,NB-PTCO-037,NB-PTCO-158,PTFC,PTFD,PTFC101A1G0,PTFD101A1A0,PTFM,PTFC101C1A0,PTFD101T1A0,NB-PTCO-151,PTFD102C1G0,NB-PTCO-150,NB-PTCO-032,NB-PTCO-153,NB-PTCO-152,PTFM102A1G0,NB-PTCO-155,PTFF102A1A0,NB-PTCO-154,PTFC101T1G0,NB-PTCO-157,PTFM102C1A0,NB-PTCO-035,NB-PTCO-156
温度传感器的可测的温度范围是多少?
1、如果对于温度范围要求很高,建议使用温敏电阻,GX系列传感器是TE Connectivity推出的一款绕线式玻璃封装铂电阻传感器,作为一款RTD温度传感器,其温度范围为-200℃~400℃,其电阻无滞后性,并具有卓越的抗振性能,能够很好抵御外力压迫。除此之外GX系列铂电阻传感器封装尺寸小巧,占用空间较小,并具备高温稳定性,符合欧盟RoHS标准。2、如果是通用产品,建议使用TE传感器TSYS01,温度范围:-40 - +125℃。
技术问答 发布时间 : 2018-10-22
AS Series Delta Compact Modular Mid-range PLC: Digitized Automation for a Changing World
型号- AX-3,AS32AM10N-A,AS04DA-A,AX-324NA,AS332T-A,UC-ET020-24B,AS516E-B,AX-316EA,UC-ET020-24D,AX-300N,AS08AN01T-A,ASDA-A3-L,M300,AS164P-A,ASDA-A2-M SERIES,,AX-364ELA0MA1T,AS01DNET-A,AS500,AS-F2AD,ASDA-A3-M,AS228T-A,AX-324N,AS08AD-C,AS132T-A,AS08AD-B,AS02HC-A,AS148T-A,AX-304ELA0PA1T,C2000,AX-304EL,AX-304ELA0PA1P,AS564EST-B,UC-CMC100-01A,AS-PS03C,TAP-CP01,AX-300NA,AS218RX-A,AH SERIES,AS-F485,ASDA-A3-M SERIES,,AS-F2DA,ASDA-B3-M SERIES,AS64AM10N-A,AS02ADH-A,AS16AN01P-A,AS16AP11T-A,AX-308EA0MA1P,AX-332EP0MB1T,AS332T,ASDA-A2-M,AX-308EA0MA1T,AS332P,M300 FAMILY,,AS-PS02A,AS1XXT-A,AS32AM,AS32AN,AX-324NA0PA1P,AS04RTD-A,TAP-TR01,AS300N-A,UC-CMC015-01A,AS-F232,AS04AD-A,UC-EMC100-02B,UC-EMC100-02C,AX-364EL,AS02LC-A,UC-CMC050-01A,UT-AS332-C,ASDA-B3-M,ASDA-B3-L,ASDA-A2-L SERIES,AS164,AS 100,ASRTU-EC16,UC-EMC030-02B,AS524C,UC-PRG030-20A,AS04PU-A,UC-EMC200-02C,AX-3 SERIES,AS-F422,AS08AN01R-A,UC-EMC010-02B,UC-EMC010-02C,AS04TC-A,AS164R-A,AS-FECAT,UC-PRG015-01A,AX-316E,ASDA-B2-B SERIES,AS64AN02T,AS-FOPC02,AS-PS02,AS148,UB-10-OT32A,AS132R-A,AS16AM10N-A,AS-FCOPM,AS 300 SERIES,TAP-CN02,TAP-CN01,AS148R-A,AS08AM10N-A,UB-10-ID16A,ASDA-B2-F,TAP-CN03,ASDA-B2-B,AS100 SERIES,AS00SCM-A,AS320T-B,AS16AP11R-A,AS16AN01R-A,AS1XXR-A,AX-364EA0MA1T,AX-300NA0PA1,AS08TC-A,ASDA-B3 SERIES,UC-EMC003-02B,UC-EMC003-02C,UC-ET030-24B,UC-ET030-24D,UC-EMC020-02B,UC-EMC020-02C,MPD,AS04SIL-A,AS64AN,AS64AM,AS 300,AS64AN02T-A,UC-EMC005-02B,AS332P-A,UC-EMC005-02C,AS08AN01P-A,UC-ET010-24D,UC-ET010-24B,AX-304ELA0MA1T,AX-304ELA0MA1P,AS164T-A,AS218TX-A,AX-316EA0MA1T,UC-CMC005-01A,AX-308E,AS132P-A,UC-CMC010-01A,VFD-EL,AS228,AS228P-A,AX-308EA,AS32AN02T-A,AS148P-A,AS524C-B,AS 200,ASDA-B3-L SERIES,ASDA-A2-L S,AS-FPFN02,UC-CMC030-01A,AS16AP11P-A,AS132,AS500 SERIES,AS1XXP-A,AS16AN01T-A,VFD-EL FAMILY,AS532EST-B,AS 200 SERIES,AS-FFTP01,UB-10-OR16B,ASDA-B3,ASDA-B2,UB-10-OR16A,ASRTU-EC16AP1TA,AS02PU-A,AS218PX-A,UC-DN01Z-01A,AS32AN02T,UC-CMC200-01A,AS200 SERIES,ASDA-B2-F SERIES,,AS-ATXB,ASDA-B2 SERIES,DTC,AS5XXE,DTC SERIES,AX-332E,UC-DN01Z-02A,AS300,AS228R-A,UB-10-ID32A,AS-FEN02,UC-CMC020-01A,C2000 FAMILY,AS100,AS06XA-A,UC-CMC003-01A,AS324MT-A,AS SERIES,AS320P-B,AS324MT,MPD SERIES,AS06RTD-A,AX-332EP,AS 100 SERIES,UC-PRG030-01A,UB-10-IO32D,DVP SERIES,AS200,UC-EMC050-02B,UC-EMC050-02C,ASDA-A3-L SERIES
电子商城
品牌:TE connectivity
品类:Pressure & Temperature Sensor
价格:¥20.3000
现货: 15,592
品牌:TE connectivity
品类:Platinum Temperature Sensors
价格:¥12.6092
现货: 210
现货市场
服务
可定制温度范围-230℃~1150℃、精度可达±0.1°C;支持NTC传感器、PTC传感器、数字式温度传感器、热电堆温度传感器的额定量程和输出/外形尺寸/工作温度范围等参数定制。
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可定制烧结NdFeB磁铁的剩磁最高1.45T,易加工成各种尺寸。充磁方向:径向充磁、轴向充磁、辐射充磁等;镀层:Zn、Sn、Ni、电泳等,最高工作温度220℃。
最小起订量: 1 提交需求>
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