Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Actual application scenario and optic image of the sensor with corresponding basic structure. (b) Piezoelectric signal acquisition and wireless Bluetooth transmission. (c) Sensor production process. (d) Working process of piezoelectric sensor.
