Non Contacting Measurement of Surface Resistivity Using Phi Type Electrodes

Sugimoto, Toshiyuki; Ishii, H.; Higashiyama, Yoshio

doi:10.1109/08ias.2008.110

Cited by 6 publications

(3 citation statements)

References 7 publications

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“…2) is examined as a possible alternative to the opposed needle electrode-type ionizer. The φ-type electrode is composed of a high-voltage needle electrode and a grounded-ring electrode [9], [10]. The needle electrode penetrates the center of the grounded-ring electrode.…”

Section: A Two DC Ionizers Proposed and Testedmentioning

confidence: 99%

DC Ionizer With Opposed $\phi$-Type Corona Electrodes for High-Speed Charge Elimination

Sugimoto

Kato²,

Furutachi

et al. 2014

IEEE Trans. on Ind. Applicat.

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The corona-type ionizer supplies air flow including positive and negative corona ions for the elimination of electrostatic charges on a charged target. DC ionizers placed close to the charged target are proposed to shorten the charge-elimination time. The ionizer is composed of a grounded mesh electrode and opposed positive and negative needle electrodes. Opposed φ-type electrodes are also evaluated to improve the ionizer performance. A strong electric field can be formed between the grounded mesh and the charged target; therefore, the ion drag force due to the electric field becomes dominant and plays an important role in charge elimination with this technique. A chargeelimination model that introduces a simplified charge-elimination current is also proposed to evaluate ionizer performance. The charge-elimination performance of the ionizer with opposed φ-type electrodes was much better than that with opposed needle electrodes.

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Section: A Two DC Ionizers Proposed and Testedmentioning

confidence: 99%

DC Ionizer With Opposed $\phi$-Type Corona Electrodes for High-Speed Charge Elimination

Sugimoto

Kato²,

Furutachi

et al. 2014

IEEE Trans. on Ind. Applicat.

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“…(11) at the boundary condition of v(O, t) = Vo is given by [7] where erf is an error function and erfc is a complementary error function.…”

Section: (10)mentioning

confidence: 99%

“…However, it is difficult to predict the surface resistivity from the measured charge decay time due to the capacitive loading effect [6]. We propose a non-contact surface resistivity testing method by improvement of the charge decay method [7][8]. In this method, the surface potential rise time of the test material partly charged by the corona charger is measured.…”

Section: Introductionmentioning

confidence: 99%

Non-contact surface resistivity measurement using cylindrical surface potential detector with a corona charger

Sugimoto¹,

Abe²,

Higashiyama

2011

2011 IEEE Industry Applications Society Annual Meeting

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A non-contact surface resistivity tester was developed by improving the charge decay measurement. The tester has a corona charger and surface potential probe in a cylindrical grounded body. The corona charger provides a surface charge on the test material and the surface potential detector measures the traveling motion of the surface charge. The traveling speed of the surface charge is dependent on the surface resistivity of the test material; therefore, the surface resistivity can be determined without contact to the material. An equivalent circuit was predicted with a one dimensional ladder circuit including the surface resistance of the material, the volume resistance of air, and the capacitance between the cylinder and the test material. From analysis of the equivalent circuit, the surface resistivity for an insulative surface was found to be a function of p/(Pv5), where Ps is the surface resistivity of the test material, Pv is the volume resistivity of air, and 5 is the gap between the test surface and the cylinder. For conductive and dissipative surfaces, the surface resistivity is dependent on EoP/5, where Eo is the permittivity of air. The measurement concepts were experimentally verified using a needle type corona charger and a surface potential meter. The surface resistivity determined by surface potential measurement was in agreement with that determined using a contact type surface resistivity tester.

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DC ionizer using opposed φ-type corona electrodes for high speed charge elimination

Sugimoto¹,

Kato²,

Higashiyama³

2012

2012 IEEE Industry Applications Society Annual Meeting

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Non Contacting Measurement of Surface Resistivity Using Phi Type Electrodes

Cited by 6 publications

References 7 publications

DC Ionizer With Opposed $\phi$-Type Corona Electrodes for High-Speed Charge Elimination

DC Ionizer With Opposed $\phi$-Type Corona Electrodes for High-Speed Charge Elimination

Non-contact surface resistivity measurement using cylindrical surface potential detector with a corona charger

DC ionizer using opposed φ-type corona electrodes for high speed charge elimination

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Non Contacting Measurement of Surface Resistivity Using Phi Type Electrodes

Cited by 6 publications

References 7 publications

DC Ionizer With Opposed $\phi$-Type Corona Electrodes for High-Speed Charge Elimination

DC Ionizer With Opposed $\phi$-Type Corona Electrodes for High-Speed Charge Elimination

Non-contact surface resistivity measurement using cylindrical surface potential detector with a corona charger

DC ionizer using opposed &#x03C6;-type corona electrodes for high speed charge elimination

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Product

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DC ionizer using opposed φ-type corona electrodes for high speed charge elimination