Tenzometrie

Tenzometrie is a method used to measure strain, which is the deformation of an object under stress. This is typically achieved using a strain gauge, a sensor whose electrical resistance changes in proportion to the amount of strain applied to it. Strain gauges are small, flexible devices that can be bonded to the surface of a material. When the material deforms, the strain gauge deforms with it, altering its electrical resistance. This change in resistance can then be measured and correlated to the amount of strain.

The principle behind the strain gauge relies on the piezoresistive effect, where the electrical resistivity of a material changes when mechanical strain is applied. Common strain gauges are made of a thin metallic foil or wire arranged in a grid pattern on a flexible backing. As the backing is stretched or compressed along with the test object, the grid pattern deforms, changing its length and cross-sectional area, and thus its electrical resistance.

Tenzometrie has a wide range of applications across various engineering and scientific fields. It is extensively used in structural analysis to monitor the behavior of bridges, buildings, and aircraft under load. In material science, it helps researchers understand the mechanical properties of new materials. It is also employed in the design and testing of mechanical components, as well as in the development of sensors for measuring pressure, force, and torque. The accuracy and versatility of tenzometrie make it an indispensable tool for engineers and scientists.