ABB现货PFRA101

PFRA101 PFRA101

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传感器是能够受规定的被测量并按照的规律转换成可用输出信号的器件或装置的总称,通常由敏感元件和转换元件组成。当传感器的输出为规定的标准信号时，则称为变送器。

  变送器的概念是将非标准电信号转换为标准电信号的仪器，传感器则是将物理信号转换为电信号的器件，过去常讲物理信号，现在其他信号也有了。一次仪表指现场测量仪表或基地控制表，二次仪表指利用一次表信号完成其他功能：诸如控制，显示等功能的仪表。

  传感器和变送器本是热工仪表的概念。传感器是把非电物理量如温度、、液位、物料、气体特性等转换成电信号或把物理量如、液位等直接送到变送器。变送器则是把传感器采集到的微弱的电信号放大以便转送或启动控制元件。或将传感器输入的非电量转换成电信号同时放大以便供远方测量和控制的信号源。根据需要还可将模拟量变换为数字量。传感器和变送器一同构成自动控制的监测信号源。不同的物理量需要不同的传感器和相应的变送器。还有一种变送瞒不是将曙理量变换成电信九，如一种锅炉水驶计的“额压变送瞒”，他是将液位矮感器里蹦下部的水和上部阳汽的冷例水通过仪表管送到变送器蹦波纹管两侧，以定纹管两多的差压带动机械撑大装置用指针指尉水位的只种远方仪表。当然还有把电气模拟量变换成数字量的也可以叫变送器。以上只是从概念上说明传感器和变送器的区别。

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A10VSO28DRF1/31R-PSA12N00

E-A10VSO28DFR1/31R-PPA12N00

A10VSO28DFR1/31R-PPA12N00

A10VSO28DFR/31R-PSA12N00

A10VSO28DR/32R-PPA121V00

A10VO28DFR1/31L-PSC62N00

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A10VSO45DRS/31R-PPA12N00

A10VSO45DRS/31R-PPB12N00

A10VSO45DFR1/31R-VPA12KB2

A10VSO45DFR1/31R-PPB12KB2

A10VSO45DFR1/31R-PPA12KB2

A10VSO45DFR/32R-PPB12KB2

A10VSO45DFR/32R-PPA12KB2

A10VSO45DFR/32R-VPB22U99

A10VSO45DFR/32R-VPA22U99

A10VSO45DR/32R-VPA22U99

A10VSO45DR/32R-VPB22U99

A10VS045DR/32R-PPA12N00

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A10VS045DR/31R-VPB12N00

A10VS045DFR/31R-PPB12N00

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A10VS045DFR/31R-PPB12N00

A10VS045DFR1/31R-PPA12N00

A10VSO45DFR1/31R-PPA12N00

E-A10VSO45DFR1/31R-PPA12N00

A10VSO45DR/52R-PC12N00

A10VO45DFR1/31R-PSC62K02

A10VSO45DFR1/32R-PPB12N00

A10VS045DR/31R-PPA12N00

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A10VSO71DRS/31R-PPA12N00

A10VSO71DRS/31R-PPB12N00

A10VSO71DFR1/31R-VPA12KB2

A10VSO71DFR1/31R-PPB12KB2

A10VSO71DFR1/31R-PPA12KB2

A10VSO71DFR/32R-PPB12KB2

A10VSO71DFR/32R-PPA12KB2

A10VSO71DFR/32R-VPB22U99

A10VSO71DFR/32R-VPA22U99

A10VSO71DR/32R-VPA22U99

A10VSO71DR/32R-VPB22U99

A10VS071DR/32R-PPA12N00

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A10VS071DR/31R-VPB12N00

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A10VS071DFR/31R-VPB12N00

A10VS071DFR/31R-VPA12N00

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A10VS071DFR/31R-PPA12N00

A10VSO71DFR1/31R-PPA12N00

A10VSO71DFR1/31R-PPA12KB5

A10VSO71DFR/31R-PSC62K07

A10VSO71DFR1/31R-PPA12N00

E-A1OVSO71DFR1/31R-PPA12N00

A10VSO71DFR1/31R-PPA12N00

A10VSO71DFR1/32R-VPB22U99

A10VSO71DFR1/31R-PPB12NOO

EA10VSO71DR/31R-PPA12N00

A10VSO71DR/31R-PPA12N00

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A10VSO100DRS/31R-PPA12N00

A10VSO100DRS/31R-PPB12N00

A10VS0100DFR1/31R-VPA12KB2

A10VSO100DFR1/31R-PPB12KB2

A10VSO100DFR1/31R-PPA12KB2

A10VSO100DFR/32R-PPB12KB2

A10VSO100DFR/32R-PPA12KB2

A10VSO100DFR/32R-VPB22U99

A10VSO100DFR/32R-VPA22U99

A10VSO100DR/32R-VPA22U99

A10VSO100DR/32R-VPB22U99

A10VSO100DR/32R-PPA12N00

A10VSO100DR/32R-PPB12N00

A10VSO100DR/31R-VPB12N00

A10VSO100DFR/31R-PPB12N00

A10VSO100DFR/31R-VPB12N00

A10VSO100DFR/31R-VPA12N00

A10VSO100DFR/31R-PPB12N00

A10VSO100DFR/31R-PPA12N00

A10VSO100DR/31R-PPA12N00

A10VS0100DR/31R-VPA12N00

A10VSO100DFR1/31R-PPA12N00

A10VSO100DFR1/32R-VPB12N00

A10VSO100DFR1/32R-PPB12N00

A10V0100DR/31R-PSC11N00

A10VS0100DR/31R-PTA12N00

A10VSO100DR/31R-PPA12N00

A10VSO100DR/31R-PPB12N00

A10VSO140DRS/31R-PPA12N00

A10VSO140DRS/31R-PPB12N00

A10VSO140DFR1/31R-PPB12KB2

A10VSO140DFR1/31R-PPA12KB2

A10VSO140DFR/32R-PPB12KB2

A10VSO140DFR/32R-PPA12KB2

A10VSO140DFR/32R-VPB22U99

A10VSO140DFR/32R-VPA22U99

A10VSO140DR/32R-VPA22U99

A10VSO140DR/32R-VPB22U99

A10VSO140DR/32R-PPA12N00

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A10VSO140DR/31R-VPB12N00

A10VSO140DFR/31R-VPB12N00

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A10VSO140DFR/31R-PPB12N00

A10VSO140DFR/31R-PPA12N00

A10VSO140DR/31R-PPB12N00

A10VSO140DR/32R-PPB12N00

A10VSO140DFR/31R-PPB12N00

A10VSO140DFR/32R-PPB12N00

A10VSO140DFR1/31R-PPB12N00

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A10VSO140DG/32R-VPB12N00

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A10VSO140DFE1/32R-VPB22U99

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A10VSO140DFR1/32R-VPB22U99

A10VSO140DR/31R-PPA12N00

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A4VSO40EM/10R-PPB10N00

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A4VSG71EM/10R-PPB10N00

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A4VSG40EM/10R-VZH10N00

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A4VSG40EM/10R-VZH10K31

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A4VSG40EM/10R-VZH10K35

A4VSG40HM/10R-PPB10N00

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A4VSO40EM/10R-PPB10N00

A4VSO71EM/10R-PPB10N00

A4VSO125EM/10R-PPB10N00

A4VSO180EM/10R-PPB10N00

A4VSO250EM/10R-PPB10N00