Tomography - detection and or measurement
> Home > Applications > Tomography
 | | While Topography is defined as
being concerned with features of a surface, Tomography is concerned with the
features of embedded objects. | |
Many people will have heard of a PET or CAT scan as non-invasive medical
procedures which create images of various body parts.
PET Scans (Positron Emission Tomography) is where typically, a small dose of
radioactive material is added to the blood stream and after circulating, its
presence and concentrations are detected and imaged from outside the body.
Tomography can be carried out on a variety of subjects using a variety of
detection techniques including:
X-Ray Computed Axial Tomography (CAT scan)
Positron Emission Tomography
(PET),
Acoustic Tomography,
Ultrasound Tomography,
Seismic
Tomography
Optical Tomography,
Electron Microscopy Tomography
(EMT)
Electrical Capacitance Tomography (ECT)
Electrical Impedance
Tomography (EIT)
Sensatech are concerned primarily with ECT and EIT using knowledge of
capacitive and electric field sensing arrays developed from work in other
areas. Sensatech sensors have improved contact impedance characteristics and
thus do not require as much care in fitting of the electrodes.
Using electrical capacitive tomography Sensatech is working on development
projects to establish the feasibility of detecting landmines embedded in the
soil, Sensatech is also working on non contact cardiography which may develop
into research into body potential mapping, itself a form of tomography though
of electrical potential rather than physical characteristics.
See also:
3d shapes - detection and or
measurement of
Invasive, non-contact 3d
mapping
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