Table 1 The relative error value of final displacement values of the sensors in the fixed-distance tests.
Test | Time/s | Integral displacement | Relative error | Mean relative error | |||
|---|---|---|---|---|---|---|---|
MEMS Sensor /mm | MEMS spherical monitoring device /mm | MEMS Sensor /% | MEMS spherical monitoring device /% | MEMS sensor /% | MEMS spherical monitoring device /% | ||
a | 7.60 | 317.3 | 308.8 | 5.77 | 2.93 | 8.76 | 6.73 |
b | 9.55 | 326.9 | 317.1 | 8.97 | 5.70 | ||
c | 9.65 | 328.5 | 319.1 | 9.50 | 6.37 | ||
d | 9.95 | 329.3 | 323.4 | 9.77 | 7.80 | ||
e | 10.35 | 321.8 | 318.3 | 7.27 | 6.10 | ||
f | 12.85 | 334.1 | 325.5 | 11.36 | 8.50 | ||
