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Title:
VOLTAGE APPLICATION METHOD, VOLTAGE APPLICATION DEVICE, AND TIME-OF-FLIGHT MASS SPECTROMETER
Document Type and Number:
WIPO Patent Application WO/2017/158842
Kind Code:
A1
Abstract:
In this invention, a voltage application device has: an electrode circuit comprising a plurality of electrode connection parts connected in series through resistances (R1, R3, R5) in between neighboring electrode connection parts; and power sources (Pl, P2, P3, P4) outputting voltages of both positive and negative polarities, and respectively connected to both ends and at least one intermediate position of the electrode circuit. The voltage application device is used to apply voltage to electrodes (243, 246, 244A, 244B, 247) connected at the electrode connection parts. In so doing, the invention comprises steps of: determining the polarity and the magnitude of the output voltage for each of the plurality of the power sources in such a manner that a voltage of a predetermined polarity and magnitude is applied to each of the electrodes; and, on the basis of the polarity of the output voltage for each of the plurality of power sources, switching the polarity of the output voltage for each of the plurality of power sources one at a time while maintaining a state in which the polarity of the output voltage of at least one power source P among the plurality of power sources is different from those of the others, thereby switching the polarity of each of the output voltages for the all of the power sources.

Inventors:
OSHIRO, Tomoyuki (1 Nishinokyo-Kuwabara-cho, Nakagyo-ku, Kyoto-sh, Kyoto 11, 〒6048511, JP)
Application Number:
JP2016/058823
Publication Date:
September 21, 2017
Filing Date:
March 18, 2016
Export Citation:
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Assignee:
SHIMADZU CORPORATION (1 Nishinokyo-Kuwabara-cho, Nakagyo-ku Kyoto-sh, Kyoto 11, 〒6048511, JP)
International Classes:
H01J49/40
Domestic Patent References:
WO2012132550A12012-10-04
WO2007029327A12007-03-15
WO2012132550A12012-10-04
WO2007029327A12007-03-15
Foreign References:
JP2011522365A2011-07-28
JP2001349853A2001-12-21
JP2009037936A2009-02-19
JP2006156259A2006-06-15
Other References:
See also references of EP 3432340A4
Attorney, Agent or Firm:
KYOTO INTERNATIONAL PATENT LAW OFFICE (Hougen-Sizyokarasuma Building, 37 Motoakuozi-tyo, Higasinotouin Sizyo-sagaru, Simogyo-ku, Kyoto-s, Kyoto 91, 〒6008091, JP)
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