What Does Laser Displacement Sensor Repeatability Mean?

Laser displacement sensor is a high-precision device for measuring object position and distance. One important performance metric is repeatability. So, what does repeatability mean?

Repeatability refers to the range of deviation when a laser displacement sensor measures the same target multiple times under fixed conditions. In simple terms, it is the consistency and stability of repeated measurements of the same target under identical conditions.

Repeatability for a laser displacement sensor is usually expressed in percentage, millimeters, or micrometers, for example 0.1%, 0.01 mm, or 1 μm. This means that under the same measurement conditions the measurement deviations among repeated tests fall within the specified range.

Repeatability is crucial for laser displacement sensors. A sensor with high repeatability provides very stable and consistent results and supplies high-precision measurement data. Low repeatability may cause fluctuations and unstable measurements, affecting accuracy and reliability.

Therefore, when choosing a laser displacement sensor, repeatability is a key parameter. Sensors with better repeatability are suitable for high-precision applications such as precision machining and quality inspection, while sensors with lower repeatability may suffice for general measurement needs.