Patent classifications
G01Q20/04
Nanoscale Dynamic Mechanical Analysis via Atomic Force Microscopy (AFM-nDMA)
An atomic-force-microscope-based apparatus and method including hardware and software, configured to collect, in a dynamic fashion, and analyze data representing mechanical properties of soft materials on a nanoscale, to map viscoelastic properties of a soft-material sample. The use of the apparatus as an addition to the existing atomic-force microscope device.
Nanoscale Dynamic Mechanical Analysis via Atomic Force Microscopy (AFM-nDMA)
An atomic-force-microscope-based apparatus and method including hardware and software, configured to collect, in a dynamic fashion, and analyze data representing mechanical properties of soft materials on a nanoscale, to map viscoelastic properties of a soft-material sample. The use of the apparatus as an addition to the existing atomic-force microscope device.
Compact probe for atomic-force microscopy and atomic-force microscope including such a probe
A probe for atomic force microscopy comprises a tip for atomic force microscopy oriented in a direction referred to as the longitudinal direction and protrudes from an edge of a substrate in the longitudinal direction, wherein the tip is arranged at one end of a shuttle attached to the substrate at least via a first and via a second structure, which structures are referred to as support structures, at least the first support structure being a flexible structure, extending in a direction referred to as the transverse direction, perpendicular to the longitudinal direction and anchored to the substrate by at least one mechanical linkage in the transverse direction, the support structures being suitable for allowing the shuttle to be displaced in the longitudinal direction. An atomic force microscope comprising at least one such probe is also provided.
Compact probe for atomic-force microscopy and atomic-force microscope including such a probe
A probe for atomic force microscopy comprises a tip for atomic force microscopy oriented in a direction referred to as the longitudinal direction and protrudes from an edge of a substrate in the longitudinal direction, wherein the tip is arranged at one end of a shuttle attached to the substrate at least via a first and via a second structure, which structures are referred to as support structures, at least the first support structure being a flexible structure, extending in a direction referred to as the transverse direction, perpendicular to the longitudinal direction and anchored to the substrate by at least one mechanical linkage in the transverse direction, the support structures being suitable for allowing the shuttle to be displaced in the longitudinal direction. An atomic force microscope comprising at least one such probe is also provided.
Nanoscale dynamic mechanical analysis via atomic force microscopy (AFM-nDMA)
An atomic-force-microscope-based apparatus and method including hardware and software, configured to collect, in a dynamic fashion, and analyze data representing mechanical properties of soft materials on a nanoscale, to map viscoelastic properties of a soft-material sample. The use of the apparatus as an addition to the existing atomic-force microscope device.
Nanoscale dynamic mechanical analysis via atomic force microscopy (AFM-nDMA)
An atomic-force-microscope-based apparatus and method including hardware and software, configured to collect, in a dynamic fashion, and analyze data representing mechanical properties of soft materials on a nanoscale, to map viscoelastic properties of a soft-material sample. The use of the apparatus as an addition to the existing atomic-force microscope device.
Coated active cantilever probes for use in topography imaging in opaque liquid environments, and methods of performing topography imaging
Active cantilever probes having a thin coating incorporated into their design are disclosed. The probes can be operated in opaque and/or chemically harsh environments without the need of a light source or optical system and without being significantly negatively impacted by corrosion. The probes include a substrate that has a cantilever, a thermomechanical actuator associated with the cantilever, a piezoresistive stress sensor disposed on the cantilever, and a thin coating disposed on the cantilever and the piezoresistive stress sensor. The coating is bonded to the substrate, is thermally conductive, and has a low thermal resistance. Further, the thin coating is configured to have little to no impact on one or more of a mass of the active probe, a residual stress of the cantilever, or a stiffness of the active probe. Techniques for performing topography and making other measurements in an opaque and/or chemically harsh environment are also provided.
Coated active cantilever probes for use in topography imaging in opaque liquid environments, and methods of performing topography imaging
Active cantilever probes having a thin coating incorporated into their design are disclosed. The probes can be operated in opaque and/or chemically harsh environments without the need of a light source or optical system and without being significantly negatively impacted by corrosion. The probes include a substrate that has a cantilever, a thermomechanical actuator associated with the cantilever, a piezoresistive stress sensor disposed on the cantilever, and a thin coating disposed on the cantilever and the piezoresistive stress sensor. The coating is bonded to the substrate, is thermally conductive, and has a low thermal resistance. Further, the thin coating is configured to have little to no impact on one or more of a mass of the active probe, a residual stress of the cantilever, or a stiffness of the active probe. Techniques for performing topography and making other measurements in an opaque and/or chemically harsh environment are also provided.
Method and control unit for demodulation
A method for demodulation including the following steps: exciting a vibrationally mounted, at least sectionally bar-shaped oscillating element for oscillating in the range of a resonance frequency of the oscillating element, wherein a temporally varying, in particular periodic, excitation signal is used for excitation, and wherein at least the temporal variation of the excitation signal is known or determined; detecting a modulated oscillation of the oscillating element by means of at least one sensor, wherein the sensor supplies a sensor measurement variable that varies versus time as a function of an amplitude and a phase of the modulated oscillation of the oscillating element. According to the present teaching, it is provided that the method includes the following step: generate a first comparison signal by amplitude modulating a known temporally varying, in particular periodic, demodulation signal by means of the temporally varying sensor measurement variable.
Method and control unit for demodulation
A method for demodulation including the following steps: exciting a vibrationally mounted, at least sectionally bar-shaped oscillating element for oscillating in the range of a resonance frequency of the oscillating element, wherein a temporally varying, in particular periodic, excitation signal is used for excitation, and wherein at least the temporal variation of the excitation signal is known or determined; detecting a modulated oscillation of the oscillating element by means of at least one sensor, wherein the sensor supplies a sensor measurement variable that varies versus time as a function of an amplitude and a phase of the modulated oscillation of the oscillating element. According to the present teaching, it is provided that the method includes the following step: generate a first comparison signal by amplitude modulating a known temporally varying, in particular periodic, demodulation signal by means of the temporally varying sensor measurement variable.