A load cell transducer/sensor creates an electrical signal whose magnitude is directly proportional to the force measured. The standard straight bar load cell 1kg(sometimes called a strain gauge) translates up to 1 kg of pressure (force) into an electrical signal. Each load cell 1kg measures the electrical resistance that changes is proportional to the strain (e.g. pressure or force) applied to the bar. The output of the load cell is in milli-volts and cannot be directly measured by a micro-controller. So an ADC with high resolution or an instrumentation amplifier reads the output of the load cell to the microcontroller.
The intensity of deformity defines how much force applied, and this value digitally sent to an interface module. This gauge can determine how heavy an object is, whether the object’s weight changes over time or if you simply need to sense the object by measuring strain or load applied to a surface. This straight bar load cell made from an aluminum alloy. And it is capable of reading a capacity of 1KG of weight. These load cells also provide an IP66 protection rating for the sensor.
A load cell has four lead wires which connect HX711 A/D Pressure Sensor. It is easy to use with a driving voltage of 5-10V and produces the output voltage as the force changes.
Due to its high accuracy, it has a wide range of applications in the kitchen or jewelry scales.