How is compensation of an oscilloscope probe performed?
The correct answer is A: A square wave is displayed, and the probe is adjusted until the horizontal portions of the displayed wave are as nearly flat as possible. How is compensation of an oscilloscope probe performed is that a square wave is displayed, and the probe is adjusted until the horizontal portions of the displayed wave are as nearly flat as possible. Probe compensation ensures proper frequency response. For amateur radio operators, this is important for accurate measurements. Understanding this helps when using oscilloscopes.
Exam Tip
Oscilloscope probe compensation = square wave displayed, adjust until horizontal portions flat. Think 'P'robe 'C'ompensation = 'P'erfect 'C'orners (flat). Probe compensation ensures proper frequency response using square wave. Not sine wave, not frequency standard, not DC standard - just square wave for flat response.
Memory Aid
"Oscilloscope probe compensation = square wave displayed, adjust until horizontal portions flat. Think 'P'robe 'C'ompensation = 'F'lat 'C'orners. Probe compensation ensures proper frequency response using square wave. Important for accurate measurements."
Real-World Application
Compensating an oscilloscope probe: A square wave is displayed, and the probe is adjusted (using the compensation trimmer) until the horizontal portions of the displayed wave are as nearly flat as possible. This ensures the probe has proper frequency response. This is how compensation is performed - square wave for flat response.
Key Concepts
Why Other Options Are Wrong
Option B: Incorrect. High frequency sine wave for maximum amplitude isn't compensation - compensation uses square wave for flat response. Sine wave isn't compensation.
Option C: Incorrect. Frequency standard for accurate deflection time isn't compensation - compensation uses square wave for flat response. Frequency standard isn't compensation.
Option D: Incorrect. DC voltage standard for accurate voltage isn't compensation - compensation uses square wave for flat response. DC standard isn't compensation.
题目解析
The correct answer is A: A square wave is displayed, and the probe is adjusted until the horizontal portions of the displayed wave are as nearly flat as possible. How is compensation of an oscilloscope probe performed is that a square wave is displayed, and the probe is adjusted until the horizontal portions of the displayed wave are as nearly flat as possible. Probe compensation ensures proper frequency response. For amateur radio operators, this is important for accurate measurements. Understanding this helps when using oscilloscopes.
考试技巧
Oscilloscope probe compensation = square wave displayed, adjust until horizontal portions flat. Think 'P'robe 'C'ompensation = 'P'erfect 'C'orners (flat). Probe compensation ensures proper frequency response using square wave. Not sine wave, not frequency standard, not DC standard - just square wave for flat response.
记忆口诀
Oscilloscope probe compensation = square wave displayed, adjust until horizontal portions flat. Think 'P'robe 'C'ompensation = 'F'lat 'C'orners. Probe compensation ensures proper frequency response using square wave. Important for accurate measurements.
实际应用示例
Compensating an oscilloscope probe: A square wave is displayed, and the probe is adjusted (using the compensation trimmer) until the horizontal portions of the displayed wave are as nearly flat as possible. This ensures the probe has proper frequency response. This is how compensation is performed - square wave for flat response.
错误选项分析
Option B: Incorrect. High frequency sine wave for maximum amplitude isn't compensation - compensation uses square wave for flat response. Sine wave isn't compensation. Option C: Incorrect. Frequency standard for accurate deflection time isn't compensation - compensation uses square wave for flat response. Frequency standard isn't compensation. Option D: Incorrect. DC voltage standard for accurate voltage isn't compensation - compensation uses square wave for flat response. DC standard isn't compensation.
知识点
Compensation of oscilloscope probe, Square wave, Horizontal portions flat, Probe adjustment
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.