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XM-60 specifications
Between 0 and 4 metres
| Linear | |
| Measurement accuracy | ±0.5 ppm (with environmental compensation) |
| Resolution | 1 nm |
Measurement range | 0 m to 4 m |
Angular (pitch/yaw) | |
| Accuracy | ±0.004A ±(0.5 μrad +0.11M μrad) (A = displayed error reading) (M = measured distance in metres) |
| Resolution | 0.03 μrad |
| Measurement range | ±500 µrad |
| Straightness | |
| Measurement accuracy | Typical range: ±0.01A ±1 μm Extended range: ±0.01A ±1.5 μm (A = displayed error reading) |
| Resolution | 0.25 μm |
| Measurement range | Typical range: ±50 µm radius Extended range: ±250 µm radius |
| Roll | |
| Accuracy | ±0.01A ±6.3 μrad (A = displayed error reading) |
| Resolution | 0.12 μrad |
| Measurement range | ±500 µrad |
Accuracy values are reported to a statistical confidence of 95% (k=2). They do not include the errors associated with the normalisation of the readings to a material temperature of 20 °C.
Between 4 and 6 metres
- The performance specification for linear, angular and straightness measurement will be the same between 4 m and 6 m as it is between 0 m and 4 m.
- The performance specification for roll measurement between 4 m and 6 m range will be:
| Roll | |
| Accuracy | ±0.01A ±10.0 μrad (A = roll error (µrad)) |
| Resolution | 0.12 μrad |
| Measurement range | ±500 µrad |
Accuracy values are reported to a statistical confidence of 95% (k=2). They do not include the errors associated with the normalisation of the readings to a material temperature of 20 °C. Measurement beyond 4 m range requires good alignment between the XM launch and receiver. If misalignment causes received laser signal strength to fall below 4%, CARTO software will inform the user that better alignment is required.
Over 6 metres
- The performance specification for linear and angular measurement will be the same between 6 m and 8 m as it is between 0 m and 4 m.
- The performance specification for straightness measurement between 6 m and 8 m is yet to be verified.
- The performance specification for roll measurement between 6 m and 8 m is yet to be verified.
Accuracy values are reported to a statistical confidence of 95% (k=2). They do not include the errors associated with the normalisation of the readings to a material temperature of 20 °C. Measurement beyond 4 m range requires good alignment between the XM launch and receiver. If misalignment causes received laser signal strength to fall below 4%, CARTO software will inform the user that better alignment is required.