Chapter 10 APPENDIX
10-13
Pulse width
Width of light pulse emitted from the instrument. Normally, pulse width is expressed by
half width.
The pulse width has the following features.
Short pulse width: Enables measurement with high spatial resolution, but not
measurement at long distances.
Long pulse width: Enables measurement at long distances, but not measurement with
high spatial resolution.
Real time measurement
Real time measurement uses the default average time (little number set to the instrument
to perform measurement.
For details on real time measurement, refer to page 3-54.
Reflection point
Points where the optical fiber is connected. There are two reflection point types as shown
below. For details, refer to the explanation given for each type.
• Connection point
• Fault location
Resolution
Indicates how finely the object can be measured. With this instrument, resolution is
defined mainly for distance, and the following resolution types are used. For details, refer
to the explanation given for each type.
• Sampling resolution
• Spatial resolution
Pulse width
Refer
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