![]() ![]() In operation, load cells are generally subject to a range of outside influences that must be carefully controlled, monitored and adjusted for. Directional pressure thus creates an electrical signal in a load cell transducer, and the magnitude of this signal is directly proportional to the force being measured. ![]() In a typical load cell, it’s this micro deformation analysis that is then converted electronically into a highly accurate weight readout. The strain gauges are able to measure the exact extent of this deformation in the spring elements to an extremely precise degree. They will therefore deform to some extent under sufficient pressure, be it downward force from above (compression) or a pulling force from below (tension), before returning to their original form and shape. The spring elements attached to a strain gauge material (usually foil meshes or semiconductors) will most commonly be made from either steel or aluminium, giving them the property of being very strong but also very slightly elastic. Load cell transducer technologies are inherently compatible with a wide array of other digital and computer-based communications technologies, which allows companies of all types to quickly access, monitor and respond to key diagnostics information in real time.Īs this is so much more difficult to achieve using traditional mechanical platform weighing devices, load cell installation often proves to be a far more efficient and cost-effective choice for most companies in the long-run. Load cells are rapidly becoming far more common across a swathe of industries that are less intrinsically reliant on critically accurate weight measurements, too - for example, in general logistics and freight calculation. They’re also very widely used in all manner of medical and laboratory settings to achieve optimally accurate measurements for a wide range of scientific and research purposes. In more directly industrial uses, load cells are extremely important in maintaining precise quality control systems for manufacturing consistency and safety processes. The fact that such a large proportion of all global sales still relies on precise weight measurement is one reason that load cells play such a vital role in modern commerce. ![]() These terms have largely become interchangeable in many workplace environments today, so it’s sensible to clarify exactly which type of device you’ll be using for your intended application when assessing load cell prices or planning to buy load cell parts.Įlectronic load cells are now broadly accepted as the modern standard in most of today’s heavy industries, manufacturing plants, large-scale production floors and stringent quality control environments. However, it’s very common to encounter the term ‘load cell’ being used in reference to a wide range of force-sensing device types, many of which are explicitly designed to measure forces applied from all directions. It should be noted that, strictly speaking, a true load cell of any type will always be designed to work (and should therefore be aligned) in the direction of gravity. Some varieties rely on calibrated proving rings to measure load displacement, although these are somewhat less common than strain gauge types.Īmong the various different types of load cells available, varying models and styles can be differentiated in two key ways:īy the specific method they use to detect weight (compression load cells, tension load cells and other measurement types)īy the type of output signal generated (hydraulic load cells, piezoelectric load cells and various other configurations) Load cells are available in many different configurations and standards, depending on the intended application and environment. The most basic definition of a load cell is that they measure weight - or, more accurately, directional force - usually via a combination of spring elements and strain gauges, converted into an electrical output. Load cells, often called load cell transducers, are crucial components in most industrial weighing systems. ![]()
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