A fully waterproof eddy current sensor probe

Abstract

The invention discloses a full-waterproof eddy current sensor probe which comprises a probe shell, a framework, a coil, a blind sealing cover, a front pressing swivel nut, a rear pressing swivel nut and a conical sealing ring. The outer circumferential surface of the rear section of the blind sealing cover is a front outer conical face, and the surface of the circumferential wall of an inner hole in the front section of the front pressing swivel nut is a front inner conical face. The front section of the front pressing swivel nut is arranged on the rear section of the blind sealing cover in a sleeved mode, and the rear section of the front pressing swivel cover is arranged on the front section of the probe shell in a sleeved mode and is connected with the front section of the probe shell through threads. The front section of the rear pressing swivel nut is arranged in an inner hole of the rear section of the probe shell and is connected with the inner hole of the rear section of the probe shell through threads. The surface of the circumferential wall of an inner hole of the front section of the rear pressing swivel nut is a rear inner conical face, the outer circumferential surface of the conical sealing ring is a rear outer conical face, and the front section of the rear pressing swivel nut is arranged outside the conical sealing ring in a sleeved mode. According to the full-waterproof eddy current sensor probe, conical face matching is adopted between the blind sealing cover and the front pressing swivel nut and between the rear pressing swivel nut and the conical sealing ring, so that the best sealing and waterproof effect is achieved at the front end and the rear end of the eddy current sensor probe.

Description

technical field [0001] The invention relates to a probe of an eddy current sensor, in particular to a fully waterproof probe of an eddy current sensor. Background technique [0002] The eddy current sensor can measure the distance between the metal conductor under test and the surface of the probe with non-contact, high linearity and high resolution, both statically and dynamically. The eddy current sensor has the advantages of good long-term working reliability, wide measurement range, high sensitivity, high resolution, fast response speed, strong anti-interference ability, unaffected by oil and other media, and simple structure. It is widely used in online monitoring and fault diagnosis. However, in some special environments and conditions, such as in water or in a pressurized water environment, the use of eddy current sensors will be greatly affected, or even not work properly. [0003] The frame, coil, probe shell, protective sleeve and other components in the eddy cur...

AI Technical Summary

Problems solved by technology

However, after verification of use, the front end of the probe is still not tightly sealed, and the waterproof effect is not satisfactory, and there is no waterproof device at the rear end, so the whole probe still has the problem of water ingress. The present invention is proposed based on this problem.

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