Technical Specifications

FAQ

1. What is the primary function of this probe in rotating machinery monitoring?

This probe is used for continuous, non-contact measurement of shaft vibration and axial displacement in rotating machinery. It converts mechanical shaft movement into electrical signals that are processed by a monitoring system. These signals help operators assess machine condition, detect early-stage mechanical faults, and support protection and diagnostic functions for critical industrial equipment.

2. How does eddy current technology measure shaft movement?

The probe generates a high-frequency electromagnetic field at its tip. When a conductive shaft enters this field, eddy currents are induced on the shaft surface. These eddy currents change the impedance of the probe coil, producing a voltage signal proportional to the distance between the probe and the shaft. This enables highly accurate real-time displacement measurement without physical contact.

3. What types of equipment typically use this probe?

This probe is commonly installed on steam turbines, gas turbines, centrifugal compressors, large pumps, and industrial electric motors. These machines operate under continuous load conditions, where small changes in vibration or shaft position can indicate developing mechanical issues such as imbalance, misalignment, or bearing wear.

4. What are the key installation requirements?

Proper installation requires precise alignment between the probe and shaft surface, maintaining a defined air gap, and ensuring rigid mechanical fixation. The probe must remain stable during operation. The shaft surface should be clean, smooth, and free from oil, rust, or mechanical damage to ensure stable and accurate signal output.

5. What problems can occur if the probe is installed incorrectly?

Incorrect installation may result in unstable signals, incorrect vibration readings, increased noise, or false alarms. If alignment or gap settings are incorrect, measurement accuracy will be affected. In severe cases, the probe may fail to detect shaft movement properly, reducing the reliability of the monitoring system.

6. Is calibration required after installation?

Yes, calibration is required after installation. It ensures that the probe output accurately corresponds to actual shaft displacement. Calibration involves setting reference gap values and verifying system response. Without proper calibration, measurement accuracy and diagnostic reliability may be significantly affected.

7. How do environmental conditions affect probe performance?

Environmental factors such as temperature variations, oil mist, moisture, electromagnetic interference, and mechanical vibration can affect signal stability. Although the probe is designed for industrial environments, harsh operating conditions may still degrade performance. Proper shielding and stable mounting help maintain long-term measurement accuracy.

8. What maintenance practices help extend service life?

Regular inspection of probe mounting stability, cable condition, and connector integrity is recommended. Avoid mechanical stress on the probe and prevent contamination from oil or debris. Periodic system checks and signal verification help ensure early detection of degradation and maintain long-term monitoring reliability.