How to identify the transmitter and sensor

The sensor is usually composed of a sensing element and a conversion element. It is a general term for a device or device capable of detecting a specified measurement and converting it into a usable output signal according to a certain rule. When the sensor output is a specified standard signal, the sensor is a transmitter. A device that converts a physical signal into an electrical signal is called a sensor, and an instrument that converts a non-standard electrical signal into a standard electrical signal is called a transmitter. A meter refers to a field measuring instrument or a base control table, and a secondary meter refers to using the signal of a watch to perform other functions.

The transmitter and the sensor together constitute an automatically controlled detection signal source. Different sensors and corresponding transmitters can be combined to meet the needs of different physical quantities. The weak electrical signal collected by the sensor is amplified by the transmitter and amplified to facilitate the transfer or activation of the control element. Sensors convert non-physical quantities into electrical signals and send these signals directly to the transmitter. There is also a transmitter that sends the water in the lower part of the level sensor and the condensed water in the upper steam to the two sides of the bellows of the transmitter through the instrument tube, and the mechanical amplification device is driven by the differential pressure on both sides of the bellows. A remote instrument for the water level. In addition, there are transducers that convert electrical analog quantities into digital quantities.