X, Y, Z three Axis Load Cell for ESMLS350

Three-dimensional force sensors are mainly based on the resistive strain principle, while some high-frequency dynamic applications use the piezoelectric principle.

Elastomer design: There is an elastomer inside, specially designed with a mechanical structure (usually made of aluminum alloy or stainless steel). This structure is designed to produce specific small deformations when forces are applied in the X, Y, and Z directions.

Strain gauge layout: In the critical stress concentration areas of the elastomer, multiple sets of resistive strain gauges are attached (usually forming a Wheatstone bridge).

When an external force acts on the sensor, the deformation of the elastomer causes changes in the resistance of the strain gauges.

Through carefully designed gauge placement and bridge connection methods, forces in the X direction mainly affect the X bridge, forces in the Y direction affect the Y bridge, and so on.

Decoupling algorithm: Due to the complexity of the mechanical structure, a force in one direction often causes minor outputs in other directions (i.e., inter-axis coupling/crosstalk). High-end sensors have integrated high-performance signal processors that use matrix decoupling algorithms to separate mixed signals and output pure, independent force values of Fx, Fy, and Fz.

1. Precise Sensing: Capable of detecting extremely subtle force changes, with a sensing accuracy of up to 0.1 N.
2. Multi-Dimensional Measurement: Can simultaneously measure force changes in three spatial directions, outputting three sets of voltage signals, allowing the force values in each direction to be obtained without vector calculations.
3. Compact Structure: Some three-dimensional force sensors are small in size, making them suitable for high-precision force measurements in confined spaces.
4. High Stability: Made from materials such as aerospace alloys and high-strength stainless steel, with overall machining, combining high rigidity and high sensitivity, capable of withstanding high overloads.
5. Good Dynamic Response: Three-dimensional force sensors based on resistance strain gauges have a high natural frequency, making them suitable for dynamic measurements and capable of quickly tracking transient force changes.