Streaming potential online measuring instrument probe lower piston improvement

Abstract

The present invention relates to a streaming potential online measuring instrument probe lower piston improved design, namely a new design of a probe lower piston. The new design of the invention includes an electrode, an electrode check ring, a lower piston boss, a check ring upper surface and an interval. The reason of the collision of the lower piston and the electrode, the electrode check ring (Figure 2) is that the interval between the lower piston and the electrode, the electrode check ring is too small, wherein the interval is defined by a streaming potential measurement principle and cannot be arbitrarily changed. In order to increase the interval without the streaming potential measurement principle broken, the diameter of a part of the lower piston that collides with the electrode and the electrode check ring (Figure 2) is needed to be decreased, such that the lower piston which performs up-and-down movement and back-and-forth swing simultaneously cannot contact with the electrode and the electrode check ring (Figure 2), and therefore, the collision of the lower piston and the electrode, the electrode check ring (Figure 2) can be avoided, and the service life of a probe can be prolonged.

Description

technical field [0001] The invention relates to an improved design of an on-line measuring instrument for swimming potential—a new design of a piston under a probe. The invention effectively prolongs the service life of the probe by improving the design of the lower piston of the probe of the swimming potential on-line measuring instrument. Background technique [0002] The swimming potential online measuring instrument is a real-time measuring device, which requires the lower piston 40 to move up and down continuously (see figure 2 ). The lower piston 40 moves relative to the probe measuring chamber 52, and the distance 42 between them is very small. Due to mechanical transmission, when the lower piston moves up and down, it swings back and forth and hits the electrode 20 and its retaining ring 24 ( figure 2 ), electrode 20 and its retaining ring 24 ( figure 2 ) is glued together with the measurement chamber 52, and after continuous impact, the electrode 20 and its reta...

AI Technical Summary

Problems solved by technology

[0004] The current on-line measuring instrument for swimming potential has the following defects: when the device is working, it is easy to cause the lower piston to hit the electrode and its retaining ring. Measurement

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