Besides quartz, one other substances that exhibit the piezoelectric impact are Rochelle salt and tourmaline. Rochelle salt displays the best piezoelectric result, but its applications are restricted to manufacture of microphones, headsets and loudspeakers. It truly is because the Rochelle salt is mechanically the weakest and strongly affected by humidity https://consumerelectronicscrysta15836.dailyhitblog.com/40389029/top-latest-five-consumer-electronics-crystal-oscillators-urban-news