Goniometers for Life Science Education

BIOPAC offers twin-axis goniometers, torsiometers, and finger goniometers to obtain accurate measurement of polycentric joints. Telescopic endblocks compensate for changes in distance between the two mounting points as the limb moves.  BIOPAC Goniometers and torsiometers are designed for the measurement of limb angular movement. Goniometers transform angular position into a proportional electrical signal. Goniometers incorporate gauge elements that measure bending strain along or around a particular axis.

Used in conjunction with the Biopac Student Lab and other components, these goniometers and torsiometers are key elements of a complete life science teaching system.

The below figures show sign conventions for the most common joints:

Biomechanics goniometer sign conventions

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Finger Goniometer 35mm, BSL

Finger Goniometer 35 mm – MP3X/45

Part #: SS24L

SS24L is used to measure finger joint movement. The gauge mechanism in this single-axis goniometer allows for accurate measurement of…


Goniometers & Torsiometers – MP3X/45

Part #: SS20L, SS21L, SS22L, SS23L

Dual-axis devices provide simultaneous measurements around two orthogonal rotational axes and single output devices measure axial rotation about a single plane.…