🔍 Key Concepts

• Vibration measurement focuses on motion, not temperature or electrical frequency • A sensor that detects acceleration is often used to infer vibration levels • Think about which device type is physically attached to machinery to pick up movement

💭 Think About

• Ask yourself: which device is specifically designed to sense motion or acceleration in machines, rather than heat or electrical properties? • Which option would most likely be bolted or mounted to a pump, motor, or turbine casing to monitor its vibration? • Which device converts mechanical motion (shaking) into an electrical signal that can be analyzed on a vibration monitor?

✅ Before You Answer

• Eliminate any choice that clearly measures temperature rather than movement • Eliminate any choice that is mainly used for signal generation (creating frequencies), not sensing them • Focus on the device whose primary job is to detect motion/acceleration of the machine structure