How transmitters and sensors work together

The sensor output signal is usually 0-20mv, 4-20ma, etc. The sensor signal is finally sent to the computer for processing, analysis and display, but the computer cannot recognize such a weak signal, the computer can be 0-5v, 0-10v, etc. For these relatively large signals, we need the help of the transmitter at this time. The transmitter is actually a signal amplifier. Linearly amplify the weak signal to a signal standard that the computer can recognize, such as input 4-20ma and output 0-5v, which is the input and output parameters of the transmitter, so that the computer can receive the signal of the sensor through the transmitter, and these signals are based on The range of the sensor is proportionally converted into real temperature, pressure, flow and other data that we can see. See below. How the transmitter and the sensor work together The sensor is a general term for devices or devices that can be measured and converted into usable output signals according to certain rules, usually composed of sensitive elements and conversion elements. When the output of the sensor is a specified standard signal, it is called a transmitter. The sensor converts non-electrical physical quantities such as temperature, pressure, liquid level, material and gas characteristics into electrical signals or directly sends physical quantities such as pressure and liquid level to the transmitter. The transmitter is to amplify the weak electrical signal collected by the sensor in order to transmit or start the control element. Or a signal source that converts the non-electrical input from the sensor into an electrical signal and amplifies it for remote measurement and control. The analog quantity can also be converted into a digital quantity as required. The sensor and the transmitter together form an automatically controlled monitoring signal source. Different physical quantities require different sensors and corresponding transmitters. Converting electrical analog quantities into digital quantities can also be called transmitters.

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