Division of Metrology in Length and Precision Engineering
- Large-Scale Dimensional Metrology Lab
- Precision Measurement Technology Lab
- Gauge Block and Line Scale Lab
- Thread/Coordinate Measuring Technology Lab
- Length Quantum Standards Lab
UTC(NIM)
Other Links
And links to websites of international metrology organizations !
Contact Us
General Information:
Address: No.18,Bei San Huan
Dong Lu,Chaoyang
Dist,Beijing,P.R.China, 100013
ws@nim.ac.cn
Tel:+86-10-64525678
An 80m large-scale standard instrument designed by the division in 2006 reaches a measurement uncertainty of U=0.1μm+2×10-7L(k=2), where L is in meter. It is among international advanced level. The instrument is able to provide calibration service for interferometers, geodimeter and laser rangefinder etc. It consists of an 80m precision guide-rail system, a laser measurement system, an ambient temperature sampling system and an auto-control system.
Till 2012, this device has got a guide-rail whose length is the second longest, just 20m shorter than the Japanese 100m rail. Its specifications are among international level.