Technical Specifications

FAQ

1. What is the primary function of this proximity probe?

This probe is used to monitor shaft vibration and axial displacement in rotating machinery without physical contact. It continuously measures the distance between the probe tip and the conductive shaft surface, converting mechanical movement into an electrical signal. This information is used in condition monitoring systems to detect early signs of mechanical issues such as imbalance, misalignment, shaft instability, or bearing wear, helping improve operational reliability.

2. What types of equipment typically use this probe?

It is commonly applied in critical rotating machinery such as steam turbines, gas turbines, compressors, pumps, electric motors, and large industrial gearboxes. These systems operate under continuous load and high-speed conditions, where even small changes in shaft behavior can indicate developing faults. The probe plays a key role in maintaining machine health in power generation, oil and gas, and heavy industrial environments.

3. How does the eddy current measurement principle work?

The probe generates a high-frequency electromagnetic field at its sensing tip. When a conductive metal target enters this field, eddy currents are induced within the surface of the material. These currents modify the impedance of the probe coil, and the system converts this change into a voltage signal. The output voltage is directly proportional to the distance between the probe and the target surface, enabling precise non-contact displacement measurement.

4. What factors can affect measurement accuracy?

Measurement accuracy can be influenced by target material conductivity, surface condition, mounting stability, and environmental temperature variations. Electrical noise from nearby high-power equipment and improper grounding can also introduce signal instability. To ensure accurate and stable readings, proper installation practices, rigid mechanical support, and correct system calibration are essential.

5. What are the key installation requirements?

The probe must be installed using a rigid and stable mounting structure to prevent vibration-induced errors. The gap between the probe and the shaft surface must be set precisely according to system specifications. Cable routing should avoid high-voltage and high-current conductors to minimize electromagnetic interference. Proper alignment with the shaft is also critical to ensure accurate measurement of true radial or axial movement.

6. Is this probe suitable for continuous monitoring applications?

Yes, this probe is designed for continuous, real-time monitoring in industrial environments. It is widely used in 24/7 condition monitoring systems where uninterrupted data collection is required. Because it operates without physical contact, there is no mechanical wear between the probe and the shaft, allowing long-term stable operation even in demanding conditions.

7. How is system calibration performed?

The probe is typically factory calibrated and designed to work with compatible signal conditioning modules. During system integration, it is paired with monitoring electronics that convert voltage output into displacement values. In some applications, additional system-level calibration is performed to match specific machine characteristics, ensuring accurate vibration analysis and long-term trend monitoring.

8. What maintenance is required for this probe?

Maintenance requirements are minimal due to its non-contact measurement principle. Routine inspections should ensure that the probe remains securely mounted and that cables and connectors are intact. It is also important to prevent contamination or mechanical damage to the probe tip. Regular system checks help maintain stable signal output and ensure long-term measurement reliability.