Terahertz image gallery

It is critical for quality control and nondestructive testing to avoid the usage of ionizing radiation (X-rays) due to its detrimental effect on biological agents. This is where Terahertz imaging technology, developed and commercialized by Terasense, is extremely useful, and there are many examples of THz imaging’s useful application in the food industry.

Security applications

We all know that homeland terror knows no bounds and is currently on the rise. What’s more, terror methods are becoming more ingenious with hidden weapons and threats which are hard to detect. Security-related applications can be subdivided into two major subcategories as outlined below.

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Knife hidden
in a book

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Metallic stencil over
a 9-mm plywood

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Gun replica hidden
in a textile cover

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Metallic, plastic
and wooden rulers

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Gun replica hidden
in a wooden case

Terahertz image of bag of nitrate powder in an envelop

Security applications

THz image of a dummy explosive belt
Dummy explosive belt
THz image of a hidden hand-gun
Hidden hand-gun

Terahertz security body scanner

Terahertz inspection of agricultural products

Terahertz inspection of agricultural products
Two hazelnuts within nutshell Terahertz image of a peanut in a nutshell (100 GHz).
Terahertz inspection of agricultural products
Peanut within nutshell. Visual inspection
fails to identify the number of nuts inside.
Terahertz image of a peanut in a nutshell (100 GHz).
It clearly shows a discernable defect – a missing nuts on the left.

Terahertz inspection of agricultural products

Terahertz food inspection

Terahertz food inspection

Terahertz applications in the ceramic industry

Measurement of moisture gradient in a sample of ‘green’ tiles
with a moisture content of 0 to 3%.

THz transmission image of a cracked ‘green’ tile with humidity gradient: 1.5 — 2.2%. Cracks, hidden defects and moisture gradient of the tile are clearly detectable.

Terahertz applications in the ceramic industry

Wood Processing Industry

THz images of wooden boards

NDT inspection for wood processing

Automotive industry applications

THz transmission image of rubber belt with disrupted metal wiring (at 100GHz)

THz reflection image of a metal part with bad corrosion (at 300GHz)

Automotive industry applications

THz imaging for science

Test of TeraSense camera operation with TDS system

Imaging of beams from TDS and FDS spectroscopy systems

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