terhelésmér

Terhelésmér is a Hungarian term that translates directly to "load meter" or "strain gauge" in English. It refers to a device used to measure strain, which is the deformation of a material under stress. These devices are crucial in various engineering and scientific fields for understanding how structures and materials behave under different loads.

The principle behind a terhelésmér is typically based on the change in electrical resistance of a conductor when it is stretched or compressed. A common type is a foil strain gauge, which consists of a thin metallic foil patterned into a grid. This grid is bonded to the surface of the object being measured. When the object deforms, the foil grid stretches or compresses, altering its electrical resistance. This change in resistance can be precisely measured by a Wheatstone bridge circuit and converted into a strain value.

Terhelésmér devices are used in a wide range of applications. They are essential for testing the structural integrity of bridges, aircraft, and buildings, ensuring they can withstand expected forces. In manufacturing, they help monitor the forces applied during production processes. They are also used in research to study material properties, analyze stress distributions, and develop new materials. The accuracy and sensitivity of a terhelésmér make it an indispensable tool for quantitative analysis of mechanical forces.