Water ions sensor

A sensor, water ion technology, applied in the direction of material resistance, can solve the problems of high cost, inability to wire welding, large electrode spacing error, etc., to achieve good welding effect

Inactive Publication Date: 2013-05-01
BEIJING HAILINSEN TECH CO LTD
8 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

The traditional water ion sensor has the following defects: 1. Since the electrode material is mostly stainless steel or titanium alloy, it cannot be directly welded to the copper or silver material of the wire; if the electrode and the wire material are all made of silver, it can be welded but the cost is too high
Due to the influence of shrinkage rate and thermal expansion and contraction in the process of water ion sensor processing, the electrode spacing error is large
Calibration is necessary when installing a water ion senso...
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Method used

[0014] As shown in the accompanying drawings, the water ion sensor of the present invention adopts a traditional anode and a cathode two electrodes 1. In order to weld the electrode 1 and the wire 3 to reduce the contact resistance, a transition metal 2 is newly used to weld the connection between the electrode 1 and the wire 3 , one end of the transition metal 2 is welded to the electrode 1 , and the other end is welded to the wire 3 . In order to reduce the impact of interference on sensor accuracy, a conversion module 4 is added. The analog input terminal of the conversion module 4 is connected to the other end of the wire 3, so that the analog signal collected by the electrode 1 is converted into a digital s...
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Abstract

The invention provides a water ions sensor which can realize high-precision measurement, no calibration requirement and remote monitoring. The water ions sensor has a positive electrode and a negative electrode, a transition metal is welded on each electrode, the other end of the transition metal is welded with a lead, the other end of the lead is connected to a conversion module, the conversion module is fixed with one end of two electrodes by a case, and an output end of the conversion module outputs the signals through the lead.

Application Domain

Material resistance

Technology Topic

EngineeringMetal +2

Image

  • Water ions sensor

Examples

  • Experimental program(1)

Example Embodiment

[0014] As shown in the drawings, the water ion sensor of the present invention uses two conventional electrodes 1 with a positive electrode and a negative electrode. In order to weld the electrode 1 and the wire 3 to reduce the contact resistance, a transition metal 2 is welded at the connecting end of the electrode 1 and the wire 3, one end of the transition metal 2 is welded to the electrode 1, and the other end is welded to the wire 3. In order to reduce the influence of interference on the accuracy of the sensor, a conversion module 4 is added. The analog input end of the conversion module 4 is connected to the other end of the wire 3, so that the analog signal collected by the electrode 1 is converted into a strong anti-interference energy, which can be transmitted over a long distance, and can be easily interfaced with the digital signal of the upper computer or the instrument. Analog standard signal. The output end of the conversion module 4 is connected to a wire 8, and a digital signal is output through the wire 8. In order to further reduce the influence of interference on the accuracy of the sensor, one end of the shielding layer 7 of the wire 8 that outputs the signal is connected to the metal shielding shell 5 inside the shell 6.
[0015] The conversion module 4 converts the collected analog signal into at least one of the following digital interface and standard analog signal: RS485 communication interface, RS232 communication interface, RS422 communication interface, Ethernet communication interface, USB communication interface, binary signal Interface, voltage type standard analog signal, current type standard analog signal.
[0016] The casing is made of epoxy resin material with high strength, low shrinkage rate, long-term hydrolysis resistance and high insulation strength, so that the distance between the two electrodes can be precisely positioned.
[0017] The above-mentioned embodiments can be changed without departing from the scope of the present invention. Therefore, the structures included in the above description and shown in the drawings should be regarded as illustrative rather than limiting the protection scope of the present invention.

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Description & Claims & Application Information

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