Transmitter Anatomy
Transmitters accept a variety of measurement signals (RTD and T/C for example), process them, and provide a robust output signal. Not all are designed and perform equally. Each major manufacturer incorporates their own engineering expertise gained from months or even years of research and development. This Intellectual Property (IP) sets the higher quality transmitters apart from the others in their ability to process the measurement signal to provide an accurate and stable output signal.
Transmitters incorporate three subsystems; the input subsystem converts the sensor measurement signal into a digital signal (called Analog-to-Digital conversion or A/D); the signal conditioning subsystem accepts this digital signal and performs various conditioning and mathematical manipulations to produce a digital representation of the temperature measurement; and the output subsystem that converts this digital signal to a robust analog output signal (D/A).
Below is the Transmitter Functional Block Diagram:
Transmitters incorporate three subsystems; the input subsystem converts the sensor measurement signal into a digital signal (called Analog-to-Digital conversion or A/D); the signal conditioning subsystem accepts this digital signal and performs various conditioning and mathematical manipulations to produce a digital representation of the temperature measurement; and the output subsystem that converts this digital signal to a robust analog output signal (D/A).
Below is the Transmitter Functional Block Diagram:
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Date Published: March 11, 2019
Source: The Engineer's Guide to Industrial Temperature Measurement - 2013 Edition
Source: The Engineer's Guide to Industrial Temperature Measurement - 2013 Edition