The specific distance measurement method is shown in the following chart
|Method||Interference Law||Triangulation||Time of flight method|
|Principle||Coherent light overlap||geometric principles.
The linear propagation properties of light
|The speed of light propagation|
|Classification||–||Line laser, structured light||Phase method, pulse method|
|Max. measuring range||<1mm||＜100m||Phase method: <1km
Pulse method: >30km
|Distance accuracy||High resolution||Low cost and robustness||Wide measuring range|
|Characteristic||Vibration measurement, shape measurement||Quality inspection, shape measurement||Medium and long range|
ERDI high precision, long distance measuring laser rangefinder, small size, light weight, is the human eye safe laser rangefinder module, and low power consumption.