Which sensor measures the relative movement between a shaft and a bearing?

Which sensor measures the relative movement between a shaft and a bearing?

• A. Velocity transducer
• B. Accelerometer
• C. Displacement non-contact eddy current probe
• D. Dynamic pressure sensor

Answer: (C)

The displacement non-contact eddy current probe is specifically designed to measure the relative movement between a shaft and a bearing. This sensor operates based on the principle of electromagnetic induction and can accurately determine the position and movement of metallic objects, such as a rotating shaft, without needing direct contact. This capability is crucial in monitoring bearing conditions and shaft alignment, as it allows for real-time measurement of displacements caused by vibration or wear. This type of probe offers high accuracy and sensitivity, making it ideal for applications that require precise measurement of small displacements. Since it does not physically touch the shaft, it minimizes wear and avoids introducing additional friction or disturbance into the system being monitored. Thus, it effectively measures the dynamic changes in the relative positions of the shaft and the bearing throughout their operational conditions.

The displacement non-contact eddy current probe is specifically designed to measure the relative movement between a shaft and a bearing. This sensor operates based on the principle of electromagnetic induction and can accurately determine the position and movement of metallic objects, such as a rotating shaft, without needing direct contact. This capability is crucial in monitoring bearing conditions and shaft alignment, as it allows for real-time measurement of displacements caused by vibration or wear.

This type of probe offers high accuracy and sensitivity, making it ideal for applications that require precise measurement of small displacements. Since it does not physically touch the shaft, it minimizes wear and avoids introducing additional friction or disturbance into the system being monitored. Thus, it effectively measures the dynamic changes in the relative positions of the shaft and the bearing throughout their operational conditions.