Oxygen electrode
An oxygen electrode and electrode technology, applied in the field of oxygen electrodes, can solve the problems of bacterial diffusion, printing peeling, and pollution around, and achieve the effects of improving measurement accuracy, good adhesion, and easy manufacturing.
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Embodiment approach 1
[0041] figure 1 A block diagram showing a bacterial count measuring device using the oxygen electrode according to this embodiment. The cell count measuring device is provided with a battery 1 in which a culture medium supplemented with a sample is contained. In addition, an oxygen electrode 2 used in the oxygen electrode method is provided in the battery 1. figure 2 A cross-sectional perspective view of the battery 1 is shown. Three electrodes constituting the oxygen electrode 2 are provided on the side wall near the bottom surface of the battery 1, namely the counter electrode 21, the working electrode 22, and the reference electrode 23. Furthermore, the battery 1 is provided with an output terminal 24 electrically connected to the counter electrode 21, the working electrode 22, and the reference electrode 23, and the oxygen electrode 2 is connected to the current measuring unit 3 via the output terminal 24.
[0042] in figure 1 In the current measuring unit 3, the oxygen ele...
Embodiment approach 2
[0057] Since the oxygen electrode 2 according to Embodiment 1 constitutes the copper electrode base material 10-nickel layer 11-Au layer 13, the oxygen electrode can be formed inexpensively. However, when the nickel layer 11 is laminated on the surface of the electrode base material 10 under general plating conditions, there is a problem that pinholes are easily generated in the nickel layer 11. If pinholes are generated on the nickel layer 11, the Au layer 13 laminated on the nickel layer 11 will also be affected by the nickel layer 11 to generate pinholes. If a large number of pinholes are generated in the Au layer, the surface of the electrode base material 10 will be exposed. When measuring the amount of dissolved oxygen in the liquid culture medium, due to the influence of the electrode base material 10, there will be a difference between the initial current value of the measurement and the predetermined threshold. The problem becomes smaller.
[0058] The difference betwee...
Embodiment approach 3
[0071] In Embodiment 2, copper is used for the electrode base material 10, but the present invention is not limited to this, and other materials may be used for the electrode base material 10 as long as it is suitable for the measurement of the amount of dissolved oxygen. For example, in this embodiment, stainless steel is used for the electrode base material 10. In addition, the bacterial count measuring device using the oxygen electrode according to this embodiment is compatible with figure 1 The block diagram of the shown bacteria count measuring device is the same. In addition, the battery 1 used in this embodiment is also figure 2 The cross-sectional perspective view of the battery 1 shown is the same. Therefore, detailed descriptions of the cell count measuring device and the battery 1 are omitted.
[0072] Next, the cross-sectional view of the oxygen electrode 2 according to this embodiment is also Image 6 The cross-sectional views shown are basically the same, except t...
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