Strain Gauge Sensors
A Strain gauge sensor is a sensor whose electrical resistance changes with applied force. It converts force, pressure, tension, weight, etc., into a change in electrical resistance which can then be measured. Strain gauge load cells are a type of load cell where a strain gauge assembly is positioned inside the load cell housing to convert the load acting on them into electrical signals. The weight on the load cell is measured by the voltage fluctuation caused by the deformation of the strain gauge. When there is no load on the load cell, the resistances of each strain gauge will be the same. However, under load, the resistance of the strain gauge changes, causing the output voltage to change.