2.3.3.3.56. NXcantilever_spm

Status:

base class, extends NXobject

Description:

A base class to describe the cantilever used in Atomic Force Microscopy (AFM) ...

A base class to describe the cantilever used in Atomic Force Microscopy (AFM) techniques.

Symbols:

No symbol table

Groups cited:

NXcalibration, NXlockin, NXobject, NXpositioner

Structure:

cantilever_oscillator: (optional) NXobject

Generally speaking, the cantilever resembles a simple harmonic oscillator. ...

Generally speaking, the cantilever resembles a simple harmonic oscillator. When the cantilever tip is close to the surface of the sample, an attractive or repulsive force appears between the cantilever and the sample, deforming the cantilever. The detector (typically a photodiode) measures this deformation and, therefore, the force acting on the cantilever. In a typical AFM scan cantilever moves toward the surface of the sample until a user-defined value of force acting on the cantilever is reached. The measured force is used as an input of a PID feedback loop, and the output of this loop controls the vertical position of the cantilever. This part describes the oscillator driving the oscillations of a cantilever in an AFM or other experiment.

reference_amplitude: (optional) NX_NUMBER {units=NX_ANY}

The reference amplitude (also called drive amplitude) of the cantilever.

reference_frequency: (optional) NX_NUMBER {units=NX_FREQUENCY}

The reference frequency (also called drive frequency or resonance frequency) ...

The reference frequency (also called drive frequency or resonance frequency) of the cantilever.

frequency_harmonic: (optional) NX_NUMBER {units=NX_FREQUENCY}

The harmonic (e.g., second harmonic of the fundamental frequency) frequency ...

The harmonic (e.g., second harmonic of the fundamental frequency) frequency of the cantilever.

phase_shift: (optional) NX_NUMBER {units=NX_ANGLE}

The phase difference between the reference signal of cantilever and response ...

The phase difference between the reference signal of cantilever and response signal.

frequency_shift: (optional) NX_NUMBER {units=NX_FREQUENCY}

Shift in the resonance frequency of the cantilever.

frequency_cutoff: (optional) NX_NUMBER {units=NX_FREQUENCY}

The cutoff frequency of the cantilever.

frequency_bandwidth: (optional) NX_NUMBER {units=NX_FREQUENCY}

The bandwidth of the resonance frequency.

target_amplitude: (optional) NX_NUMBER {units=NX_ANY}

The target amplitude of the cantilever to start the AFM/SPM experiment.

active_frequency: (optional) NX_NUMBER {units=NX_FREQUENCY}

The active frequency of the cantilever to start the experiment.

reference_phase: (optional) NX_NUMBER {units=NX_ANGLE}

The reference phase of the cantilever oscillator.

phase_lock_loop: (optional) NXlockin

Phase locked loop for cantilever lock-in device.

cantilever_amplitude_positioner: (optional) NXpositioner

Describes the cantilever frequency positioner, if it exists.

cantilever_phase_positioner: (optional) NXpositioner

Describes the cantilever phase positioner, if it exists.

cantilever_frequency_positioner: (optional) NXpositioner

Describes the cantilever frequency positioner, if it exists.

cantilever_config: (optional) NXobject

The configuration information of the cantilever such as calibration informatio ...

The configuration information of the cantilever such as calibration information, material properties, size, resonance, etc.

cantilever_coating: (optional) NX_CHAR

The coating material of the cantilever.

curvature_radius_N: (optional) NX_NUMBER {units=NX_ANY}

The radius of curvature of the cantilever tip. The (substring) N denotes X or Y.

cantilever_type: (optional) NX_CHAR

The shape of the cantilever as a general text, such as A-shape, beam, or arrow.

cantilever_length: (optional) NX_NUMBER {units=NX_LENGTH}

Nominal length between base and end of the cantilever in micrometers.

cantilever_width: (optional) NX_NUMBER {units=NX_LENGTH}

Nominal width of the cantilever in microns.

cantilever_thickness: (optional) NX_NUMBER {units=NX_LENGTH}

Nominal thickness of the cantilever in microns.

cantilever_resonance_frequency: (optional) NX_NUMBER {units=NX_FREQUENCY}

Nominal free resonance frequency of the cantilever in air, in kHz.

CALIBRATION: (optional) NXcalibration

The calibration information of the cantilever.

sensitivity: (optional) NX_NUMBER {units=NX_ANY}

A force applied to the cantilever tip will cause a change in ...

A force applied to the cantilever tip will cause a change in cantilever’s oscillation amplitude (in dynamic mode) or deflection of the cantilever. The sensitivity of the cantilever is calculated as the ratio of this change to the force causing it.

spring_constant: (optional) NX_NUMBER {units=NX_ANY}

The spring constant coefficient of the cantilever.

Hypertext Anchors

List of hypertext anchors for all groups, fields, attributes, and links defined in this class.

NXDL Source:

https://github.com/FAIRmat-NFDI/nexus_definitions/tree/fairmat/contributed_definitions/NXcantilever_spm.nxdl.xml