What is a common technology for an...

Question 1 / 205eccefa3bacbc34ba4d47f95

Question 1 of 205eccefa3bacbc34ba4d47f95

What is a common technology for an electro-tachometer for measuring motor speed as used for variable speed drives?

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5eccefa3bacbc34ba4d47f95

What is a common technology for an electro-tachometer for measuring motor speed as used for variable speed drives?

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🔍 Key Concepts

• What an electro-tachometer does in a variable speed drive system • How motor speed (RPM) can be converted into an electrical signal • Difference between devices that sense speed versus those that sense torque or force

💭 Think About

• Which option directly produces an electrical signal proportional to shaft speed that can be fed into electronic controls? • Which devices listed are mainly used as indicators or sensors for other quantities (like force, torque, or vibration) rather than as a primary speed feedback element? • In variable speed drives, what kind of sensor is typically mounted on or driven by the motor shaft to provide closed-loop speed control?

✅ Before You Answer

• Identify which choice is a speed sensor that outputs electricity rather than a purely mechanical or visual indicator • Eliminate any device whose primary purpose is to measure torque rather than speed • Consider which device is most commonly coupled directly to the motor shaft in industrial variable-speed drive systems

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Question 1 of 20

What is a common technology for an electro-tachometer for measuring motor speed as used for variable speed drives?

small permanent magnet generator

centrifugal force indicator

vibrating reed frequency indicator

shaft torque indicator

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Question 1 / 205eccefa3bacbc34ba4d47f95

Question 1 of 205eccefa3bacbc34ba4d47f95

What is a common technology for an electro-tachometer for measuring motor speed as used for variable speed drives?

Back

Question 1 of 20

5eccefa3bacbc34ba4d47f95

What is a common technology for an electro-tachometer for measuring motor speed as used for variable speed drives?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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