Based on the analysis of measuring principle of pneumatic gauge head, a high-precision pneumatic gauge head for taper measurement and its referencedevice are designed.
通过分析气动测头的测量原理,设计了高精度锥度气动测头及其校对规。
2
NIST modelled and built the prototype device and also developed and tested various solutions used in the mini-spheres as contrast-enhancing agents and measurement reference markers.