Temperature sensor and transmitter are two important components of temperature measurement system, but their functions and effects are different.
Definition:
A temperature sensor is a device used to directly measure temperature. It is able to sense temperature changes and convert them into electrical signals or other forms of signals.
Type:
Common temperature sensors include thermocouples, thermistors (RTDS), thermistors (NTC and PTC), infrared temperature sensors, etc.
Output signal:
Temperature sensors usually output a voltage or current signal proportional to temperature, or a digital signal.
Definition:
The transmitter is a device that processes and converts the signal output by the sensor, and is usually used to convert the signal of the sensor into a standardized signal (such as 4-20mA, 0-10V, etc.) for easy long-distance transmission and compatibility with other devices.
Features:
The transmitter can not only amplify and linearize the signal of the sensor, but also perform temperature compensation, signal isolation and other processing to improve the accuracy and reliability of the measurement.
Applications:
Transmitters are usually used in industrial automation, process control and other fields, and can transmit the signal of the temperature sensor to the control system or monitoring system.
In summary, the temperature sensor is responsible for directly measuring the temperature, while the transmitter is responsible for processing and converting the signal for subsequent transmission and use. In practical applications, temperature sensors and transmitters are often used together to achieve efficient and accurate temperature measurement and monitoring.
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