Industrial probes aid research in space
20 September 2017
As a result of new developments in the theoretical knowledge of the very smallest particles on the planet, some physicists are now calling into question the principle of equivalence of inertial and gravitational mass into question. To examine these ideas, production specialists at the National Metrology Institute of Germany (PTB) in Braunschweig developed cylindrical test masses, achieving an accuracy of 2 µm to 3 µm for all geometric characteristics. This feat of engineering was only possible thanks to a measurement solution that combined a high-precision lathe from Benzinger with an OMP400 probe from Renishaw.
- Case study: Industrial probes aid microscope in space [851kB]
- Case study: Industrial probes aid microscope in space [105kB]
- Industrial probes aid research in space [2.3MB]
- The OMP400 probe uses special measurement routines to measure the circularity and cylindricity of the inner and outer surfaces of the test masses [538kB]
- The measurement cylinders for the MICROSCOPE world space mission were manufactured to 1 μm accuracy [581kB]
- Stephan Metschke, Dr Daniel Hagedorn and Heinz-Peter Heyne in the scientific machine design department at PTB, with Shahram Essam [1.0MB]
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