Nanopositioning system with combined force measurement based on electromagnetic force compensated balances. - In: Proceedings of XX IMEKO World Congress, ISBN 978-89-950000-5-2, (2012), insges. 5 S.
This paper descusses a novel nanopositioning system which is based on an electromagnetic force compensated (EMC) balance. In addition to the positioning the actuating force can also be measured. This enables the measurement of force displacement curves of springs tith a wide variety of spring constants. The measurement renge of the spring constants is up to 10(10) N/m with a maximum resolution of about 0.01 N/m. Compared to other principes for measuring the spring constant the introduced method is more sophisticated. Both force as well as the displacement can be measured traceable and simultaneously.
Traceable determination of mechnical parameters of binocular shaped force transducers according to EN ISO 376. - In: Proceedings of XX IMEKO World Congress, ISBN 978-89-950000-5-2, (2012), insges. 6 S.
This paper discusses the traceable determination of mechanical parameters of monolithic binocular shaped dual beam spring elements that are applied as force transducers and load cells in the mass and force metrology. Thereby it mainly deals with the measurement fo the specific values creeping, reversibility, reproducibility, zero error and interpolation error which are defined in applicable regulations such as the EN ISO 376 standard or the OIML recommendation R 60. Our determination of those parameters is based on an interferometric deformation measurement of a loaded binocular shaped dual beam spring element which is made of the common aluminium alloy AW 2024. Generally there is no restriction on the spring element material. The parameters mentioned above are derived from the measured interferometer signal according to the END ISO 376 standard and are thus traceable to the wavelength of light. The used measurement setup is introduced, measurements of the mentioned parameters are presented and their uncertainty is depicted. It is proved that the setup is suitable to classify dual beam spring elements according to the highest accuracy Class 00 of ENd ISO 376.
Investigation on the impedance-frequency-response for a dynamic behaviour description of elecromagnetic force compensated load-cells. - In: Proceedings of XX IMEKO World Congress, ISBN 978-89-950000-5-2, (2012), insges. 5 S.
In this paper, a method for deriving significant parameters for the description of the dynamic behaviour of electromagnetic force compensated loadcells (EMC) from its impedance-frequency-response is presented. With these parameters, the dynamical behaviouf of a load-cell can be depicted and classified near its main resonance frequency, or by going the inverse way the load-cell can be designed based ont he favored parameters to fulfill the desired criteria concerning the dynamical behaviour. This method is based on the estimation of parameters describing the behaviour of electrodynamic speakers, called Thiele-Small-Parameters, which is state of the art for designing loudspeakers. It will be demonstrated that the controller design for the EMC load-cell can be based on the derived parameters.
Electromagnetic changer for AFM tips. - In: 23rd Micromechanics and Microsystems Europe Workshop, (2012), insges. 4 S.
Thermoelemente für den Einsatz in Abgassystemen von Verbrennungsmotoren. - In: Sensoren und Messsysteme 2012, (2012), S. 770-779
Nanomess- und Nanopositioniergeräte für die nanometergenaue Positionierung, Messung und Bearbeitung von Oberflächen und Strukturen : Schwerpunkt: B5 Nanomessmaschinen. - In: Sensoren und Messsysteme 2012, (2012), S. 490-498
Fixpunktthermometer für kleine Rohrquerschnitte. - In: Sensoren und Messsysteme 2012, (2012), S. 95-104
Berechnung des effektiven Emissionsgrades von Referenzstrahlern aus Aluminiumoxid. - In: Sensoren und Messsysteme 2012, (2012), S. 88-94
Lorentz force velocimetry for poorly conducting fluids - development and validation of a novel flow rate measurement device. - In: Journal of iron and steel research international, ISSN 1006-706X, Bd. 19.2012, Suppl. 1-2, S. 613-616
Lorentz force velocimetry for local velocity measurement. - In: Journal of iron and steel research international, ISSN 1006-706X, Bd. 19.2012, Suppl. 1-1, S. 578-581