Two-wire transmitter

Provided is a two-wire transmitter that is capable of obtaining a signal that reflects the continuous changes of a sensor signal, and of simplifying configuration and processing concerned with calculation at a subsequent step. The two-wire transmitter, which outputs an analog voltage signal (V3), on...

Full description

Saved in:
Bibliographic Details
Main Authors YAMAHA YOSHIRO, TANAHASHI TOMOATSU
Format Patent
LanguageChinese
English
Published 26.10.2011
Subjects
PHYSICS
SIGNALLING
TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS
Online AccessGet full text

Cover

More Information
Summary:Provided is a two-wire transmitter that is capable of obtaining a signal that reflects the continuous changes of a sensor signal, and of simplifying configuration and processing concerned with calculation at a subsequent step. The two-wire transmitter, which outputs an analog voltage signal (V3), on the basis of the sensor signal (V1), to a transmission path (N1), comprises an intermediate potential generating circuit (100) that generates an intermediate potential in between the potential of the transmission path (N1) and a transmission path (N2); an operational amplifier (101) to which the sensor signal (V1) and a feedback signal (V2) are supplied; and a current source (102) that generates a current (I3) that flows from the transmission path (N1) to the transmission path (N2), on the basis of a control signal outputted by the operational amplifier (101). In such a circumstance, the operational amplifier (101) controls the control signal such that the sensor signal (V1) becomes equal to the feedback signal (V
Bibliography:Application Number: CN2010803441