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What is a transmitter?

Generally speaking, we usually call it a sensitive element. Its main function is to convert the measured physical quantity into an electrical signal. The thermistor is of this type, which can convert temperature into a change in resistance signal. 

The transmitter is a conditioning circuit unit that converts the output signal of the non-standard sensor into a standard voltage or current signal after processing and adjustment, so that it can facilitate the collection of digital instruments, PLCs, and computers.

In fact, there are many types of transmitters. Generally speaking, the transmitter sends a signal to the secondary instrument to display the measurement data. The transmitters are classified into temperature/humidity transmitter, pressure transmitter, current transmitter, weight transmitter, differential pressure transmitter, flow transmitter, liquid level transmitter, and power transmission and so on.

No matter what kind of transmitter, it will follow a physical law (or experimental mathematical model) to change the change of physical quantity into a standard signal such as 4-20mA. What is a transmitter? The sensor signal can be converted into a unified standard signal 0/4-20mADC, 1-5VDC, 0-10VDC, in addition to the sensor function and amplification shaping function.

Knkong Electric

Date:2019-09-09 11:40

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