| 摘要 |
A generating device is disclosed comprising first and second electrodes made of dissimilar metals, one of said electrodes being copper which has been irradiated with electromagnetic energy at the wavelength for excitation of the K shell electrons of the copper atoms. The other electrode contains at least one element chosen from Periodic groups I, II, III, IV, VII and VIII, and is preferably nickel plated brass. The two electrodes, when maintained in an electrolyte, provide a stable electrical output. When the ion concentration of the electrolyte is below a given level, the output is proportional to the ion concentration, such that an ion detector is provided.
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