Single point load cells are a type of strain gauge-based sensor designed to measure force or weight. They are especially known for their high accuracy and are commonly used in applications requiring precise weight measurements from a single load application point.
A single point load cell works by flexing a metal body (usually aluminum or stainless steel) under load. It ensures accurate weight measurement even when the load is off-center.
Strain gauges—tiny resistors—are bonded to specific spots on the load cell. They detect deformation by changing resistance as the metal flexes under load.
The strain-induced resistance change is converted into a small voltage signal. This output is protected by sealing or coating to guard against moisture, dust, and chemicals.