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
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  • Abstract
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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 sensor and is difficult to measure precisely
3. Since the measurement signal of the water ion sensor is very weak, and it is a non-standard analog signal
Very susceptible to interference, and the transmission distance is not greater than ten meters
Therefore, the on-site water quality cannot be remotely monitored, and personnel can only inspect the on-site instruments
[0003] Due to the above-mentioned defects in the traditional water ion sensor, it is difficult to meet the needs of the water treatment industry to develop to a higher level

Method used

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  • Water ions sensor

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Embodiment Construction

[0014] As shown in the drawings, the water ion sensor of the present invention uses two traditional electrodes 1 , one positive and one negative. 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 signal with strong anti-interference energy, which can be transmitted over a long distance, and can be easily interfaced with the host computer or instrument. Analog standard signal. The output end of the conversion module 4 is connected to a wire 8 through which 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.

Description

Technical field: [0001] The invention relates to a water ion sensor for measuring the conductivity of water in the water treatment industry. technical background: [0002] In the water treatment industry, the conductivity of water is a very important indicator to evaluate whether the water quality is up to standard. 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 with 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. Therefore, the electrodes and wires of the current measuring sensors all adopt a crimping process. As a result, the contact resistance of the water ion sensor is large, and the resistance value is unstable. Calibration is necessary when a water ion sensor is installed, and it is difficult to make precise measurements. Second, the conductivity mea...

Claims

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Application Information

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IPC IPC(8): G01N27/06G01N27/07
Inventor 胡洪武
Owner BEIJING HAILINSEN TECH CO LTD
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