A New Approach to ultrasonic non-destructive testing


The Inductosense technology, known as the Wireless and Non Destructive (WAND) system, consists of two parts – a compact, battery-free patch and a handheld probe. The patch is entirely passive and can be permanently installed onto a structure.

The handheld probe powers up the patch by non-contact inductive coupling when it is brought nearby (even if the patch is under material). The patch then sends out an ultrasonic wave into the structure and detects the received signal. This is then transmitted back wirelessly to the probe where the signal is analysed. For our internal corrosion system the analysed signal provides the thickness of the structure.

WAND Evaluation System

The first product from Inductosense is the WAND Evaluation System designed for ultrasonic thickness measurements and monitoring internal corrosion or erosion on pipework. The system has the following advantages:


The WAND patches can be permanently attached to structures enabling repeatable, accurate measurements from exactly the same location each time without accurate alignment, coupling gels or human error. Over time corrosion rates can be accurately determined.


The WAND patches are battery-free, wireless and compact (<1mm thick). They can be attached to structures underneath coatings, insulation or composite repairs. This alleviates the need to remove the outer layers from the structure in order to make an inspection.


An ultrasonic thickness measurement can be taken in less than a second by bringing the probe near to the WAND patch and pressing a button.

Under development

RFID sensor tagging:

We will be integrating RFID with the WAND patches in 2018 to enable the measurement acquisition process to require minimal user input and automated tracking of the data from sensors.


We are developing a range of patches, these include a patch for the detection of surface corrosion (under the Energy Game Changer programme from InnovateUK) and also guided-wave patches for the detection of defects in composite structures. We can also offer customised development for specific applications. Please contact us to discuss your requirements.

Remote monitoring:

We have prototyped a system for continuous remote monitoring. The system can be used instead of the handheld probe. We are currently trialling this and expect to launch a commercial product in late 2018