Research Article
Test Verification and Application of a Longitudinal Temperature Force Testing Method for Long Seamless Rails Using FBG Strain Sensor
Table 2
Comparison between the slopes of fitted straight lines.
| | Sensor_A | Sensor_B | | Slope of line based on measured value/°C−1 | Slope of line based on theoretical value/°C−1 | Slope of line based on measured value/°C−1 | Slope of line based on theoretical value/°C−1 |
| | 1.252 × 10−5 | 1.233 × 10−5 | 1.348 × 10−5 | 1.317 × 10−5 | | Relative error of two slopes | Relative error of two slopes | | 1.5% | 2.3% |
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