# Measuring curvature of trajectory traced by coupler of an optimal four-link spherical mechanism

> Research article (Measurement, 2021) · cited 18× · AI/ML

**Wikidata**: [openalex:W3132084464](https://www.wikidata.org/wiki/openalex:W3132084464)  
**Source**: https://4ort.xyz/entity/measuring-curvature-of-trajectory-traced-by-coupler-of-an-optimal-four-link-spherical-mechanism