Load cell is the technology that makes digital scales more capable and accurate than conventional analog scales with a springs system.
In this article, Camaweigh has curated a series of questions about load cells, so you have all the relevant information and confirmations before you buy them – hopefully from us.
A load cell is a force transducer that converts pressure into measurable electrical signals for digital weighing scales. It’s made of steel alloy for extreme durability that allows for great weighing capacity while the electrical signals ensure perfect accuracy.
Load cells are capable of measuring weight down to milligrams. They are highly accurate machines that are further classified into different levels of requirement-based accuracies such as D1-C2, C3, C4-C5, C6, and OIML.
A load cells accuracy can also be affected by several factors such as:
A load cell's function is to covert forces like pressure, tension, or torque into electrical signals. The applied force changes the metal shape in the load cell. The strain gauge changes in resistance and the generated signal is converted into a measurable unit.
Load cells are classified into different types based on the following factors:
Here are the most common types of load cells:
Load cells are the primary components of digital weighing scales. They are used in laboratory scales industrial scales platform scales such as weighbridges, axle weigh scales, and similar machines.
Load cells are made of steel alloys that have a spring element for strain gauges. Their composition makes them highly durable while keeping the minimally elastic.
Using load cells has some prerequisites:
A digital load cell converts pressure force into electrical signals. Here data is transmitted from all cells as opposed to analog cells where the voltage of only one cell is utilized. Digital signals are also faster and stronger than analog signals.
Compression load cells convert weight force into electrical signals using strain gauges attached to the load cell. The compressive load deforms the body of the load cell, and the strain gauges measure the change in voltage.
Strain gauge load cells can be calibrated by applying appropriate pressure and measuring the output. The pressure may be from dead weights or hydraulic piston loads that can be monitored by a proving ring or reference load cell.
The ideal way is to put a load on the cell at a known stress level. However, as in most cases, if this method does not suffice, you may use the shunt calibration method that involves placing a high-value resistor in parallel with one of the arms of the weighing scale.
The load cells available at Camaweigh have capacities reaching 50 tons and more.
Strain gauge load cells
Load cells are crucial components of weighing scales, especially when we have to weigh trading loads. Their functionality needs to be foolproof.
The best way to achieve that is by buying them from a trusted supplier like Camaweigh. Camaweigh is an international-level industrial supplier of weighing equipment. Contact us now to place your order.