Explore our new method for heating PET preforms with microwave energy optimized for the blow moulding process in our latest study, ” Focusing dielectric slabs for the optimization of heating patterns in single mode microwave applicators,” published in November 2021 in Applied Thermal Engineering, Elsevier.

Heating PET preforms is a crucial step in the blow moulding process, which is the predominant technique for producing containers utilized in the packaging, transportation, and storage of beverages. This procedure requires heating a cylindrical PET preform to a flexible state before the blow moulding phase, ensuring that the resulting plastic bottles possess the necessary mechanical properties. In this process, the preform temperature profile is one of the critical parameters for manufacturing a bottle with the desirable mechanical strength.

In this study, a novel approach utilizing adjustable dielectric slabs has been introduced to act as near-field focusing elements inside a single-mode microwave applicator, aiming to modify the temperature profile of PET preforms during microwave heating. …

Optimizing heating patterns of PET preforms with microwaves (Appl. Therm. Eng, 2022)Read More »

We are happy to share our new research describing a novel application of microwave technology in the fight against counterfeiting, “Detection of Anti-Counterfeiting Markers through Permittivity Maps Using a Micrometer Scale near Field Scanning Microwave Microscope“, released in August 2021 at Sensors.

The work introduces an innovative approach to detecting anti-counterfeiting markers on banknotes using a specially designed near-field scanning microwave microscope (NSMM). This portable instrument can measure permittivity maps of heterogeneous paper specimens at the micrometre scale, employing the information of a displacement laser and the cavity perturbation technique. …

Anti-Counterfeiting Marker Detection via Microwave Microscopy (Sensors, 2021)Read More »

Take a look at our new development for the characterization of rocks published in the paper ‘High-Resolution Detection of Rock-Forming Minerals by Permittivity Measurements with a Near-Field Scanning Microwave Microscope,’ available since January 2022 in Sensors.

Our research introduces a portable near-field scanning microwave microscope (NSMM) that allows non-invasive and non-contact measurements of the permittivity maps of rocks, which is probably the most relevant parameter needed to develop more efficient, fast, and eco-friendly microwave-based processes in the rock industry. …

Mineral Detection by Microwave Microscopy (Sensors, 2022)Read More »