Weighbridge:

The structure that supports the load cells and a specific section of the conveyor belt.

It's designed to ensure accurate weight measurement while allowing for smooth material flow.  

Load Cells:

These are highly sensitive sensors that measure the weight of the material on the belt.  

They convert the weight force into an electrical signal.  

Speed Sensor:

Measures the speed of the conveyor belt.  

Common types include tachometers (measure rotational speed) and encoders (measure linear displacement).  

Signal Conditioning:

Electronics that process the signals from the load cells and speed sensor, amplifying them, filtering noise, and converting them into a usable format.  

Integrator:

A device that continuously calculates the mass flow rate by multiplying the weight per unit length by the belt speed.  

Display:

A device that displays the mass flow rate, total weight, and other relevant information, such as alarms or diagnostic messages.  

In addition, you can read A Comprehensive Guide to Belt Scales: Components, Working Principles, Types and Applications for more information about belt scales.