The TSD130B twin-axis goniometer is a dual output device that can provide simultaneous measurements around two orthogonal rotational axes (e.g., wrist flexion/extension and radial/ulnar deviations). Goniometers attach to the body using TAPE2 medical adhesive tape. The units have a telescopic endblock that compensates for changes in distance between the two mounting points as the limb moves. The gauge mechanism allows for accurate measurement of polycentric joints. A DA100C is required for each output; accordingly, the twin axis goniometers will require two DA100C amplifiers to measure both axes simultaneously.
The TSD130A and TSD130B series goniometers measure limb angular movement.
The TSD130C and TSD130D are single output devices used to measure axial rotation about a single plane (e.g., forearm pronation/supination).
The TSD130E is used to measure finger joint movement (single axis goniometer).
Suggested reading for additional information on goniometry:Legnani G, Zappa B, Casolo F, Adamini R, Magnani PL. A model of an electro-goniometer and its calibration for biomechanical applications. Med Eng Phys. 2000 Dec;22(10):711-22.