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Listening Quiz: Xử Lý Tín Hiệu Cặp Nhiệt Trong Môi Trường Nhiễu – Advanced Level
Th2 10, 2024
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Kỹ sư điện (English for Electrical Engineer)
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1.
What is the main topic of the conversation?
Why long cables should be avoided in all electrical systems
How to improve thermocouple signal quality in a noisy environment
How to replace a thermocouple with a digital sensor
How to calibrate a thermocouple in a laboratory
Explanation:
Sarah and David discuss ways to condition thermocouple signals so they work better in an electrically noisy environment.
2.
According to Sarah, what type of amplifier should they use?
A variable-gain amplifier
A low-noise amplifier
A high-power amplifier
A differential power amplifier
Explanation:
Sarah specifically says, ‘We should use a low-noise amplifier.’
3.
What does Sarah say will help remove high-frequency noise?
A low-pass filter
A shielding braid
Digitizing the signal near the sensor
Cold junction compensation
Explanation:
Sarah explains that ‘A low-pass filter will help remove high-frequency noise.’
4.
What kind of cable does Sarah recommend?
Unshielded single-core cable
Flat ribbon cable
Shielded twisted pair cable
Fiber-optic cable
Explanation:
Sarah says that shielded twisted pair cables are best.
5.
What can be inferred about David after the conversation?
He already had a final design and did not want changes
He understands the problem and plans to revise the design
He is unsure whether thermocouples need any signal conditioning
He thinks the noisy environment will not affect the readings
Explanation:
At the end, David thanks Sarah and says he will update their design, which shows he understands the issue and intends to make changes.
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