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  • Eddy Current Probes and Application Guide
    This paper is intended to provide information to help the user in selecting the right E.C. probe(s) for a given inspection. Using this data, best results will be achieved by optimizing the frequency and choosing a suitable instrument.
  • Probe Types and Their Usage
    These are the probes normally used for surface crack detection, also known as High Frequency Eddy Current probes (HFEC). They have a small coil that can be made shielded or unshielded. Most are absolute types, although they can be made with the balance coil built into the probe body to ensure good
  • Linear Position and Displacement Measurement With Capacitive and Eddy-Current Sensors
    applications. Capacitive sensors work in clean environments and provide highest precision. Eddy-Current sensors can work in wet, dirty environments. They provide an economical replacement for laser interferometers when the probes can be mounted near the object and total displacements are small.
  • Shaft Displacement Measurement Using A PROTOR System
    Shaft displacement is an important vibration measurement for rotating machines. Shaft displacement is usually monitored by non-contact shaft displacement probes such as eddy-current probes. These probes produce a voltage proportional to the distance of the shaft surface relative to the tip
  • Nondestructive Testing of Nonferrous Tubes, In Particular Copper Tubes
    with thinner and thinner walls are being used in order to reduce the quantity of material used and in order to cut costs. These more stringent requirements can be met only with eddy-current testers with rotating scanning probes.
  • Z-Height Measurement with Noncontact Sensors
    and implementation problems caused by limited space, temperature changes, vacuum, target surface interference, and damage to measurement probes resulting from incidental contact with the target. Capacitive and eddy-current noncontact displacement sensors are becoming a standard technology for z-height

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