A load cell is a type of transducer. This means that it receives input in the form of physical force, either through compression or expansion, that is converted into electrical energy that can be quantified and transmitted through to display.
There are different types of load cell sensors that are used for different types of weighing applications. The most common types of load cells are the strain gauge, but there are several others including pneumatic, hydraulic and piezoelectric load cells on the market.
The Basics of Operation
The strain gauge types of load cell sensors are found across a wide range of applications. They are mounted on a specific component of a device that will experience changes in pressure or tension on the system.
As the pressure or stress changes, the input into the sensor changes, which is recognized as a change in force. This change in force results in a comparable change in the electric signal sent from the sensor, which changes the digital display.
In automated systems, the signal sent from the load cell sensors can also be used to control the system. It can increase or decrease the tension or force automatically, keeping the equipment operating with precision and accuracy within a specific range.
The Benefits
In general, load cells tend to be designed for long life cycles, which means they can be used with accuracy and dependability for years in a given application. With different sizes, models and capacity range for weight offered, it is not difficult to choose the right system for any specific application.
Quality load cells are designed to operate in even the most challenging of environments. They can be designed to operate in wet conditions as well as in areas where there are significant issues with equipment vibration.
