Title:
ION AMOUNT MEASURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/011293
Kind Code:
A1
Abstract:
An ion amount measuring device (20) is used for measuring the amount of carrier ions in ionized air generated by an ion generator (10) having a discharge electrode (11) and a nozzle (12) serving as a discharge electrode. The ion amount measuring device (20) has a cylindrical electrode (22). If the length of the cylindrical electrode (22) is denoted by l, the flow rate of air flowing through the electrode (22) is denoted by U, the detection current flowing through the cylindrical electrode is denoted by Im, and a time constant is denoted by τ, carrier ion current (Io) is calculated by equation [A] by detecting the detection current (Im) by using a current detector (33). The amount of ions in ionized air can be measured at high accuracy on the basis of the carrier ion current (Io) while a member from which static charge is eliminated is being sprayed with the ionized air.
Inventors:
FUKADA, Yoshinari (11-28 Midori-cho 3-chome, Koganei-sh, Tokyo 33, 〒1848533, JP)
Application Number:
JP2011/051609
Publication Date:
January 26, 2012
Filing Date:
January 27, 2011
Export Citation:
Assignee:
KOGANEI CORPORATION (11-28, Midori-cho 3-chome Koganei-sh, Tokyo 33, 〒1848533, JP)
株式会社コガネイ (〒33 東京都小金井市緑町３丁目１１番２８号 Tokyo, 〒1848533, JP)
株式会社コガネイ (〒33 東京都小金井市緑町３丁目１１番２８号 Tokyo, 〒1848533, JP)
International Classes:
G01N27/60
Attorney, Agent or Firm:
TSUTSUI, Yamato et al. (Tsutsui & Associates, 3F Shinjuku Gyoen Bldg. 3-10, Shinjuku 2-chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
Claims: