Differences Between Transmitters And Sensors

Sensors are the general name of a device or device capable of being measured and converted into usable output signals according to certain rules, usually consisting of sensitive elements and conversion elements. When the output of the sensor is a prescribed standard signal, it is called a transmitter.

The concept of transmitter is to convert non-standard electrical signals to standard electrical signals, the sensor is to convert physical signals into electrical signal devices, used to speak physical signals, and now other signals have. One meter refers to the field measurement instrument or base control table, two times meter refers to the use of a table signal to complete other functions: such as control, display and other functions of the meter.

Sensors and transmitters are the concept of thermal instrumentation. Sensors are non-electrical physical quantities such as temperature, pressure, liquid level, material, gas characteristics, such as converting electrical signals or physical quantities such as pressure, liquid level, etc. directly to the transmitter. The transmitter is the faint signal that the sensor collects in order to transmit or start the control element. Or converting the non-electric power input from the sensor into an electrical signal amplification simultaneously for remote measurement and control. You can also transform the analog to a numeric quantity as needed.

Sensors and transmitters together constitute a monitoring signal source for automatic control. Different physical quantities require different sensors and corresponding transmitters. There is also a transmitter that is not converted into electrical signals, such as a "differential pressure transmitter" of a boiler water level meter. He is the liquid level sensor in the lower water and the condensate of the upper steam through the instrument tube to the transmitter to the bellows on both sides, to corrugated pipe on both sides of the differential pressure to drive mechanical amplifier with pointers to indicate the water level of a distant instrument. Of course, the electrical analog change to digital volume can also be called transmitters.