Quasi-Piezoelectric Coaxial Cable for the Internet of Things
Peter Brown | June 29, 2017The C-Series quasi-piezoelectric coaxial cables. Source: EMFITEMFIT has expanded into the Internet of Things (IoT) market with the release of a quasi-piezoelectric coaxial cable that ensures self-shielding for use in high electromagnetic interference (EMI) environments.
The coaxial cables use a cellular ferroelectret polymer that allows for the compression, stretch or vibration to generate a charge or voltage proportional to the stress. The cables can be spliced and withstand heavy loads and water exposure. The C-Series cables include a narrow band of proprietary electroactive material wound around the inner conductor comprised of 20 AWG stranded silver-plated copper wire, EMFIT says.
The cable is then braided and jacketed with an extruded high-density polyethylene. The cables work for vehicle classification, weigh-in-motion (WIM), security such as fence and perimeter intrusion detection, acoustic microphones, hydrophones and machine vibration monitoring applications.