Indirect Measurement System

Indirect measurement is a method of using proportions to find an unknown length or distance in similar figures.

Laser sensors are widely used for indirect measurement.
Measurement range is large, which enables them to meet a wide range of applications.
These sensors are also very small, which means they can be
embedded in close proximity of EM noise generating components without any adverse effects.
There is no signal integrity loss, distortion, or superimposed noise to worry about, and the sensor is able to maintain high measurement accuracy.
Very-high-speed measurements with high resolution and repeatability are possible with lasers sensors.
Able to “reach” into difficult-to-access locations to provide precise metrology.
They don’t have to be very close to the thing being measured.
Unlike cameras, of course, laser sensors don’t need special lighting. They can work in dark and shadows.