Handheld Terahertz Sensor for Mobile Use

Innovative Handheld Scanners

The handheld scanner is a complete terahertz system for non-destructive on-site testing. Thanks to its compact, lightweight design, it is easily transported and ideal for use with non-movable samples as well as in various location within the production. Single-sided sample access is sufficient as the system operates in reflection. The housing of the sensor protects  from dust and spray water, which facilitates use in a manufacturing environment. An integrated touch screen ensures ease of operation and a clear display of all measurements.

When the handheld scanner is moved over a sample, it continuously records A-scans (thickness profiles) while the position sensor simultaneously registers the location. By linking these two data readings, the associated B-scans are created (spatially resolved cross sectional images). The position sensor corrects for uneven movements of the scanner.
 

Pipe Inspection During Production

Our handheld scanner is already in use in the production environment. One example is the pipe inspection directly after the extruder (machine for the production of fittings from thermoplastic material). Measurement with the hand-held scanner thus enables fast process control. Ultrasound cannot be used here due to the increased pipe temperature and the plastic core present inside the pipe. Another example is the inspection of pipe insulation after the welding process.