May survey any opaque goal. If is the transparent sighting vane, the measurement result is possibly unreliable.

What can the survey speed receive to affect?

Survey speed reflecting target influence. If the goal can reflect the laser well, can carry on the fast survey (under track pattern 0.15s).

Can the dust affect the survey?

If the dust attracts the laser beam majority of lights, in this kind of situation the measurement result will be very bad. But, this only occurs under highly the dust environment, like cement plant and so on.

Whether surveys the mobile target?

May. The observed value takes initial and when the termination surveys the distance the mean value.

Measuring accuracy

The measuring accuracy follows ISO- rule ISO/R 1938-1971, confidence 95% (like chart, ±2 time of standard deviation). The measuring accuracy for the average atmospheric condition, the track pattern is effective.

The unsuitable condition can cause the biggest measuring error, for example:

High reflection surface (for example: Baffle plate)
In permissible temperature scope boundary operation, adaption ambient temperature environment
Periphery is extremely bright, the high light glitters, the error will reach ±5 mm (two time of standard deviations)

Safe

Two levels of lasers belong to the low power light beam (< 1mW), obviously, possibly can cause the person eye injury. Two levels of lasers applications demonstration: Education experiment, laser direction, sight, distance gauge and so on. The long time looks straight ahead two levels of lasers (for example above 15 minutes) to be able to damage the person eye. Please avoid looking straight ahead two levels of lasers and according to approaches the other people eye. Do not watch the laser from the telescope. When the bright laser beam shines the person eye, the person can through condition type reflection and so on the short period of time divert somebody's attention protects the eye to exempt is injured.