Related: Piezoelectric Fiber: https://www.google.com/search?q=piezoelectric+fiber&tbm=isch https://www.google.com/search?q=piezoelectric+fiber&tbm=isch https

Related: Piezoelectric Fiber: https://www.google.com/search?q=piezoelectric+fiber&tbm=isch https://www.google.com/search?q=piezoelectric+fiber&tbm=isch https://www.google.com/search?q=piezoelectric+fiber https://www.google.com/search?q=piezoelectric+fiber "Piezoelectric polymers: theory, challenges and opportunities": https://www.tandfonline.com/doi/full/10.1080/09506608.2021.1915935 https://www.tandfonline.com/doi/full/10.1080/09506608.2021.1... https://pubs.acs.org/doi/10.1021/acsami.1c24611 https://pubs.acs.org/doi/10.1021/acsami.1c24611 https://piezotech.arkema.com/en/Applications/fiber/ https://piezotech.arkema.com/en/Applications/fiber/ >"These fibers are used for sensing and energy harvesting." https://en.wikipedia.org/wiki/Polyvinylidene_fluoride https://en.wikipedia.org/wiki/Polyvinylidene_fluoride >"PVDF is a specialty plastic used in applications requiring the highest purity, as well as resistance to solvents, acids and hydrocarbons. [...] In 1969, strong piezoelectricity was observed in PVDF, with the piezoelectric coefficient of poled (placed under a strong electric field to induce a net dipole moment) thin films as large as 6–7 pC/N: 10 times larger than that observed in any other polymer.[4]" (Also apparently has applications in the manufacture of supercapacitors, but that's a tangential discussion...) https://www.google.com/search?q=polymer+transducer https://www.google.com/search?q=polymer+transducer https://en.wikipedia.org/wiki/Transducer https://en.wikipedia.org/wiki/Transducer