Figure 29.
Point sensor. (a) Conceptual design of sensor head. (b) Wavelength shift with different RH. Adapted with permission from ref. [147]. Copyright 2019 IEEE.
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.