Question

The function of cover glass is to ____

(a) prevent entry of light

(b) protect the sensor

(c) transfer signals

(d) protect contact pads

This question was addressed to me in unit test.

Question is from Location Awareness topic in division Location and Environment Awareness in Cognitive Radio of Cognitive Radio

Answer 1

The correct answer is:

(b) protect the sensor

Explanation:

In the context of location awareness and cognitive radio, the cover glass typically refers to a protective layer used in sensors, especially in devices like GPS receivers or RF sensors. The main function of the cover glass is to protect the sensor from physical damage, environmental conditions (such as dust, moisture, or dirt), and other external factors that could impair its operation. It doesn't affect the sensor's ability to receive signals, transfer data, or interact with the environment in terms of location detection.

• Prevent entry of light is not typically a function of cover glass in these devices, as they usually work with electromagnetic waves, not light.
• Transfer signals refers to the role of the sensor itself, not the protective cover.
• Protecting contact pads is not the primary role of the cover glass; the focus is on protecting the sensor.

Therefore, the cover glass is mainly there to protect the sensor.