The purpose of most transmitters is radio communication of information over a distance. ... The transmitter combines the information signal to be carried with the radio frequency signal which generates the radio waves, which is called the carrier signal. This process is called modulation.

Where are transmitters used?

The four major process variables measured and represented by a transmitter are Pressure, Level, Temperature, and Flow. Transmitters are also used in industry to measure other variables such as Position and Speed and chemical properties such as pH and Conductivity.

What is the main purpose of transmitter in a control system?

The major function of a transmitter is to change or convert the values from a sensor into a signal which is then transmitted to a controller.