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監(jiān)護(hù)儀廠家,腦電圖機(jī),美倫,美倫醫(yī)療電子有限公司

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Meilun Medical

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監(jiān)護(hù)儀廠家,腦電圖機(jī),美倫,美倫醫(yī)療電子有限公司
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Disk electrode family

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Release date: 2015-05-14 00:00:00
Source: Henan Meilun Medical Electronics Co., Ltd.
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   Boss Plated Sterling Silver silver chloride electrode) electrode material is Plated Sterling Silver silver chloride, Ag / AgCl electrode, electrode EEG recognized best electrode materials (rivers and lakes). Even if the use of process, unfortunately, the part of AgCl coating off inside or Sterling Silver's (or Sterling Silver disc electrode) and even incompetent not than the second difference.
Second (Sterling Silver disc electrode) and pure Ag material, no Ag / AgCl senior, electrode performance although not big brother, electrode performance is not bad also meet the requirements of clinical EEG, but also the need for additional chemical plating, the process is simple, the third electrode can be a lot better than, my price also than big brother Ag / AgCl low and short price highest...... "
Third (gold disk shaped electrode), poor performance on gold electrode and the electrode, gold electrode, beautiful, glittering, bright blind your eyes. Skill, though not as old, second, but the more mature, high stability material, a lot of die hard fans (alluding to the doctor used a gold electrode using), and price advantage, the market is very big.
Ag/AgCl electrode performance is best, Ag electrode, gold electrode is relatively poor......
Sterling Silver plated silver chloride electrode
The basement is silver (99.99%);
Special plating silver chloride process, so that the surface is more uniform, dense, so that signal stability,
Chloride silver electrode signal measurement with high precision, low noise, since the substrate is sterling silver, even chlorinated silver plating surface wear, soon formed new electrode interface and maintain a good electrode types. Therefore, Sterling Silver / plating silver chloride is more durable.
Silver disk electrode
Silver electrode material is beautiful, quality,
With the use of the brain electrical coupling agent, the formation of the silver chloride interface, the measurement accuracy is high, the noise is low.
The gold electrode
Gold electrode material is beautiful, high quality,
Material of the highest stability, corrosion resistance, not easy to pollution.
Different electrode material properties and recommended index contrast
The low frequency noise level of different electrodes is compared, there is a picture of the truth.
Below the slow ClinicalNeurophysiology of commercially availableelectrodes and gels for recording of potentials EEG, which is the low frequency noise of the platinum electrode, the stainless steel electrode, the silver chloride electrode, the powder sintered Ag/AgCl, the tin electrode, the silver electrode,
The Ag/AgCl curves of the electrodes of silver and silver chloride coated electrodes are coincident with the powder sintered.
It is not difficult to see, the low frequency noise level of Ag/AgCl electrode was the lowest, followed by silver electrode.
Fig. 1 low frequency noise of different electrode materials
However, why is the best electrode material for silver / silver chloride electrodes, which is why?
Silver / silver chloride electrode is the best electrode for the measurement of the electrode, including the ECG electrode, the electrode and the EMG electrode. As the silver / silver chloride is in contact with the electrolyte solution, the chloride ion is in a relatively fast speed of the chloride ion, and the equilibrium electrode potential is reached. Anti polarization ability, strong anti-interference ability. Ag + Cl - AgCl + e
Ordinary Ag/AgCl electrodes were prepared by electrochemical chlorination or direct chemical chlorination. The interface of the electrode was only on the electrode surface. The surface of AgCl film was prone to wear and tear.
The electrode material of silver / silver chloride electrode powder is the electronic conductor of silver particles and silver chloride particles. The electrochemical interface is greatly improved, and the interface between the electrode and the electrolyte is only on the surface of the electrode material. Silver / silver chloride (Ag/AgCl) coating electrode, its main advantages are: (1) with silver and silver chloride particles highly dispersed porous structure, strong anti-interference performance; (2) high accuracy, low noise; (3) no electrode surface wear problems, easy machining to form various shapes of electrodes; (4) appropriate conditioning process, can be prepared with different characteristics of electrode.



Disk electrode family
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