In surveying, what is measured by a goniometer?
Goniometer calculate the angles of the joints measured. There has been a lot of research recently that supports these applications and their devices as reliable and valid tools that have just as much accuracy as a universal goniometer. Modern rehabilitative therapy motion capture systems perform goniometry at the very least measuring active range of motion. While in some cases accuracy may be inferior to using a goniometer, measuring angles using a motion capture system is superior in providing measurement during dynamic, as opposed to static situations. Furthermore, use of a traditional goniometer takes valuable time. In the clinical context, performing manual
Goniometer Goniometer A goniometer is an instrument that either measures an angle or allows an object to be rotated to a precise angular position. The term goniometry is derived from two Greek words, "", meaning angle, and "", meaning measure. The first description of a goniometer, derived from the astrolabe, was apparently in 1538, by Gemma Frisius. Prior to the invention of the theodolite, the goniometer was used in surveying. The application of triangulation to geodesy was described in the second (1533) edition of "Cosmograficus liber" by Petri Appiani as a 16-page appendix by Frisius entitled "Libellus de locorum describendorum ratione".