Why Do Sensors with a Large Dynamic Range Measure Through Glass Vessels and Windows That Much Better?

Let’s compare it to sunglasses, which are available with lenses in countless shades – but which one is right for you? If you wish to protect yourself from brighter light sources, you should choose a darker tint of lens, and vice-versa.

Figuratively speaking, lightly tinted lenses are sufficient to deal with a weak light bulb, while you will require significantly darker lenses when faced with a flood-light system.

A standard Radar sensors “view” when looking through glass is similar to the eye’s view when wearing sunglasses – it is “darkened.” There is a certain dielectric damping factor inherent in glass which has a “darkening” effect on radar.

In effect, glass provides resistance to the microwaves from Radar sensors, which are hindered in their transit to and from the surface of the measured medium.

A significant portion of the radar signal is reflected by glass at its surface, and the glass also attenuates it as it passes through. The unfortunate outcome of this is that the remaining emitted radar energy is no longer sufficient for the level that must be measured to be detected reliably by standard radar sensors. This is similar to how weak light sources are unable to penetrate tinted lenses which are too dark.

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