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.
Data loss of each measurement at different levels of surface flatness.
| Level of Flatness | The Number of Data Loss | Total Number of Lost Data | Percentage of Data Loss (%) | ||
|---|---|---|---|---|---|
| First Measurement | Second Measurement | Third Measurement | |||
| Flat surface | 2 | 3 | 1 | 6 | 0.78 |
| Uneven surface | 2 | 3 | 5 | 10 | 1.30 |
| Flat surface with metal mesh | 7 | 8 | 3 | 18 | 2.34 |
| Uneven surface with metal mesh | 7 | 6 | 4 | 21 | 2.73 |
