Which modulation frequency allows detection of the fiber under test?

Which modulation frequency allows detection of the fiber under test?

• A. 1 kHz
• B. 2 kHz
• C. 5 kHz
• D. 10 kHz

Answer: (B)

Choosing the modulation frequency of 2 kHz is correct because this frequency is typically effective for detecting the fiber under test due to its balance between sensitivity and the potential for interference. At this frequency, the signal can penetrate the fiber material sufficiently and distinguish it from noise, allowing for accurate testing. Higher modulations can sometimes lead to increased susceptibility to environmental noise, which may affect the accuracy of the detection. Conversely, lower frequencies may not provide the necessary sensitivity and could lead to incomplete detection of the characteristics of the fiber being tested. Thus, 2 kHz offers an optimal solution for reliable fiber detection during testing, supporting consistent results across various conditions.

Choosing the modulation frequency of 2 kHz is correct because this frequency is typically effective for detecting the fiber under test due to its balance between sensitivity and the potential for interference. At this frequency, the signal can penetrate the fiber material sufficiently and distinguish it from noise, allowing for accurate testing.

Higher modulations can sometimes lead to increased susceptibility to environmental noise, which may affect the accuracy of the detection. Conversely, lower frequencies may not provide the necessary sensitivity and could lead to incomplete detection of the characteristics of the fiber being tested. Thus, 2 kHz offers an optimal solution for reliable fiber detection during testing, supporting consistent results across various conditions.