A good example of this is the PRI04 Proximity Probe which, unlike most other proximity probes, includes all the essential elements; calibrated probe, extension cable and most importantly, a built-in driver. The result is a fully integrated probe which is compatible with API 670 systems.
By utilising the eddy current principle, the PR104 benefits from a combination of a tuned circuit with the target material. This means any variations in probe face to target distance will be detected in this circuit by the integral driver to provide highly accurate vibration and relative positional measurements.
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