Two-link planar manipulator Jacobian

How to select a load cell

Single Point Load Cell (Also known as Side Mount Load Cells, Parallelogram Sensors or Belt Buckle Sensors): This Single Point Load Cell is used in small jewelry scales and kitchen scales. It’s mounted by bolting down the end of the load cell where the wires are attached, and applying force on the other end in the direction of the arrow. Where the force is applied is not critical, as this load cell measures a shearing effect on the beam, not the bending of the beam.

Pancake Load Cells, also known as low profile Load Cells: The nature of its structure is less sensitive to extraneous load and moments (especially Torque) compared to other inline sensors such as the S Beam Load Cell, diaphragm or column type. For lower capacities it’s designed with bending beams.

Piezo Film Sensors

Applications: Higher frequency applications strain gauge.

Pros: flexible, lightweight, and tough. In its simplest mode the film behaves like a dynamic strain gauge except that it requires no external power source and generates signals greater than those from conventional foil strain gages after amplification.

Cons: Operation down to fractions of Hz can be achieved using either conventional charge amplifiers or, since signal levels are relatively high, simple high impedance FET buffer circuits. Very slow events, 0.0001 Hz, for example, are not normally possible to detect with piezoelectric film.

Costs: Under 200$