Testing method and testing device for corona discharge type ionizer
An ion generator and corona discharge technology, applied in corona discharge devices, circuits, electrical components, etc., to achieve the effects of easy evaluation, easy static removal performance, and easy maintenance and inspection
Inactive Publication Date: 2009-12-16
冈野一雄
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Problems solved by technology
[0006] In the past, when such a situation occurred, it was believed that if the power switch of the ion generator was turned ON, ions would naturally be generated and used in many cases, even if the amount of generated ions was completely zero due to the above-mentioned contamination and deterioration of the emitter. noticed
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[0042] The following describes the embodiments of the present invention according to the figures.
[0043] First of all, figure 1 Is a block diagram showing the first embodiment of the present invention, in figure 1 In the figure, 10 is a high voltage generating circuit that generates an alternating high voltage, and the output side of which is connected to a needle-shaped emitter 20 via a cable 21. In addition, a ring-shaped ground electrode 30 is arranged concentrically in the vicinity of the emitter 20, and the ground electrode 30 passes through the connection point A and the resistance R. G (Equivalent to the second resistor in the claims) is grounded.
[0044] On the other hand, a cylindrical auxiliary electrode 40 is provided to surround the cable 21 between the high-voltage generating circuit 10 and the emitter 20, and the auxiliary electrode 40 passes through the connection point B and the variable resistor R. C (Corresponding to the first resistance in the claims) is gr...
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Intended is to make it possible to detect only a true current by ions generated from the emitter of a corona discharge type ionizer, and to detect such a charge elimination current of the true current as actually contributes to the charge elimination of an object, thereby to confirm the contamination or deterioration degree, the charge eliminating performance and so on of the emitter.The corona discharge type ionizer has a ground electrode arranged near the emitter, to which a high voltage is applied. In this corona discharge type ionizer, the whole current to flow to the earth electrode and a first induced current by the high voltage applied to the emitter are simultaneously measured. A second induced current, which is a component of the whole current and which is caused to flow to the earth electrode by an electric field generated by the emitter, is estimated from the first induced current. The true current, which is generated by the ions generated by the emitter, is measured from the difference between the whole current and the second induced current.
Description
Technical field [0001] The present invention relates to a corona discharge type ion generator inspection method and inspection device, which can detect the dirt and deterioration degree of the emitter of the corona discharge type ion generator, and then can detect the static elimination that actually contributes to the neutralization object The static elimination current. Background technique [0002] As is well known, the corona discharge type ionizer is a device that applies high voltage to the emitter to ionize the surrounding air to generate positive or negative ions (charged particles), and provide these ions to The charged object to be neutralized is neutralized. [0003] For example, in an AC ion generator, an AC high voltage is applied to an emitter to alternately generate positive and negative ions, which are then supplied to the object to be charged. [0004] However, a part of the ions generated by the above-mentioned emitter is absorbed by the ground electrode arrange...
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IPC IPC(8): H01T23/00H01T19/00
CPCH01T23/00H01T19/00
Inventor 冈野一雄
Owner 冈野一雄