|Eddy currents are loops of electrical current
induced within conductors by a changing
magnetic field in the conductor according
to Faraday's law of induction.
Thai article: Wikipedia
|An atom is the smallest unit of ordinary matter
that forms a chemical element. Every solid,
liquid, gas, and plasma is composed of neutral
or ionized atoms. Atoms are so small that accurately
predicting their behavior using classical physics.
Thai article: Chiangmai University
Non Contact Measurement by Laser
|The measurement method is based
on the principle of Michelson interferometry,
where the optical configuration (image)
contains a light source with a coherence
length in the μm range.
English article: Polytec
|Laser measurement offers the ability
to assess the dimensional integrity
or profile of a part quickly without
touching the surface.
English article: Third Dimension
|It is the property of a metal, which gives it the
ability to resist being permanently, deformed
(bent, broken, or have its shape changed),
when a load is applied.
Thai article: สถาบันเหล็กแห่งประเทศไทย
Surface Finish Metrology
|Roundness Metrology||3D Coordinate Measurement|
|The measurement of small scale features on surfaces,
and is a branch of metrology. Surface primary form,
surface waviness and surface roughness are the
parameters most commonly associated with the field
English article: Digitalsurf
|Out of roundness can produce a number of problems,
vibration can have severe affects on jet engines and in
this case dire consequences. The ability to reduce or
predict vibration is a necessity.
English article: Sciencedirect
|The typical 3D CMM is composed of three axes,
X, Y and Z. These axes are orthogonal to each o
ther in a typical three-dimensional coordinate system.
Each axis has a scale system that indicates
English article: Wikipedia
|Scanning Electron Microscopy||X-ray Computer Tomography Scanning|
|It is the capacity of a material or structure to
withstand loads tending to elongate, as
opposed to compressive strength, which
withstands loads tending to reduce size.
Thai article: Chula Universitiy
| The electrons interact with atoms in the sample,
producing various signals that can be detected
and that contain information about the sample's
surface topography and composition.
English article: Wikipedia
|To makes use of computer-processed combinations of
many X-ray images taken from different angles to produce
cross-sectional (tomographic) images (virtual 'slices')
English article: 1. Ralf B. Bergmann
2. Martine Wevers
|Measurement System Analysis||Quality Control|
|Nondestructive testing (NDT) is any of a wide group
of analysis techniques used in science and technology
industry to evaluate the properties of a material,
component or system without causing damage.
Thai article: Suranaree University
|It is a specially designed experiment that seeks
to identify the components of variation in the
measurement. Just as processes that produce
a product may vary, the process of obtaining
measurements and data may have variation and
Thai article: JSJ Business
|Quality control emphasizes testing of products to
uncover defects and reporting to management
who make the decision to allow or deny product
release, whereas quality assurance attempts to
improve and stabilize production to avoid, or at
least minimize, issues which led to the defect(s)
in the first place.
Thai article: Department of Industrial Promotion