Influence of additional rotational movements on the measurement uncertainty of nanomeasuring, nanopositioning and nanofabrication machines. - In: Sensors and Measuring Systems, (2018), S. 168-171
The measurement of freeform surfaces, aspheric lenses or the sidewall roughness of high aspect ratio structures are a current challenge in nanometrology. There are different publications and commercial products with approaches to perform a measurement of those quantities [1, 2, 3, 4]. Beside the nanomeasurement the nanofabrication on curved freeform surfaces is an upcoming trend. The measurement or the fabrication on a freeform surface is limited by the possible tilt angle between the tools working axis and the local surface normal. To achieve larger angles and a minimal measurement uncertainty the tool must be placed optimal to the local surface. According to those requirements, concepts are developed to increase the degree of freedom in positioning. The x-y-z translational positioning system of an nanomeasuring machine (NMM-1) with a working volume of 25×25×5mm^3 [5] will be extended by additional rotational movements. The rotation can be achieved by three basic principles of motion which are the rotation of the sample, of the tool or a combination of the tool and the sample rotation. In a first step the principles of motion are described by their bare geometrical properties and decoupled from real positioning systems. A constant instantaneous centre of motion in the sensor measurement point is determined as the optimal principle for a rotational system. This principle is further investigated and is made concrete by choosing a combination of kinematics [6]. A vectorial approach based on the GUM [7] is used to evaluate the influence of the axes error motion on the measurement result. The method and the results for a combination of a rotary table and a goniometer axis are described in detail.
https://ieeexplore.ieee.org/document/8436163
Portable system for motion induced eddy current testing. - In: Sensors and Measuring Systems, (2018), S. 300-303
https://ieeexplore.ieee.org/document/8436178
High sensitive fluxgate sensor using new processing method to detect output signal from the excitation coil. - In: Sensors and Measuring Systems, (2018), S. 367-370
https://ieeexplore.ieee.org/document/8436188
Capacitive ultra-low power ECG measurement system for intelligent clothes. - In: Biomedical engineering, ISSN 1862-278X, Bd. 63 (2018), S1, Seite S396
Enthalten in: Poster Session
https://doi.org/10.1515/bmt-2018-6051
Increased baroreceptor sensitivity in a patient with hereditary spastic paraplegia - type SPG11: a case report. - In: Biomedical engineering, ISSN 1862-278X, Bd. 63 (2018), S1, Seite S323
Enthalten in: Poster Session
https://doi.org/10.1515/bmt-2018-6051
Temperature controlled drug release from magnetic PLGA microspheres. - In: Biomedical engineering, ISSN 1862-278X, Bd. 63 (2018), S1, Seite S281
Enthalten in: Poster Session
https://doi.org/10.1515/bmt-2018-6051
Dark-adapted versus bleached state in fluorescence lifetime imaging ophthalmoscopy. - In: Investigative ophthalmology & visual science, ISSN 1552-5783, Bd. 59 (2018), 9, 4661
https://doi.org/10.22032/dbt.40621
Dynamic Vessel Analysis using surface-mount device LEDs as light source. - In: Investigative ophthalmology & visual science, ISSN 1552-5783, Bd. 59 (2018), 9, 4695
https://doi.org/10.22032/dbt.40632
The effect of different rest periods on the Dynamic Vessel Analysis. - In: Investigative ophthalmology & visual science, ISSN 1552-5783, Bd. 59 (2018), 9, 4696
https://doi.org/10.22032/dbt.40633
Retinal vessel diameter variations and their correlation to arterial blood pressure. - In: Investigative ophthalmology & visual science, ISSN 1552-5783, Bd. 59 (2018), 9, 3198
https://doi.org/10.22032/dbt.40637