Title:
DEVICE FOR MEASURING BREAKDOWN VOLTAGE AND CONDUCTIVITY OF PARTICLE MATERIAL
Document Type and Number:
Japanese Patent JPH05215718
Kind Code:
A
Abstract:
PURPOSE: To obtain a device and a method for measuring both a breakdown voltage and conductivity of particle materials such as a developer.
CONSTITUTION: This device comprises a breakdown cell 14 for holding a specific amount of particle materials and a voltage breakdown VB autometer, and the VB autometer is suitable for applying a first voltage intersecting at least a part of a specific amount of particle materials. The VB autometer can change the first voltage gradually. A measuring circuit for measuring a second voltage is coupled to a voltage breakdown cell 14. When the second voltage is substantially equal to a specific reference voltage, the first voltage is substantially equal to a breakdown voltage of the particle materials.
Inventors:
MAIKERU CHIERIINI JIYUNIA
RUDORUFU FUOOJIENSHI
EDOWAADO JIEI GUTSUTOMAN
KARISU HANSU MANITSUKU
ROBAATO JIEI TAAKETSUTEI
DONARUDO EICHI UTSUDO
MORISU EMU DAYANGU JIYUNIA
RUDORUFU FUOOJIENSHI
EDOWAADO JIEI GUTSUTOMAN
KARISU HANSU MANITSUKU
ROBAATO JIEI TAAKETSUTEI
DONARUDO EICHI UTSUDO
MORISU EMU DAYANGU JIYUNIA
Application Number:
JP19978392A
Publication Date:
August 24, 1993
Filing Date:
July 27, 1992
Export Citation:
Assignee:
XEROX CORP
International Classes:
G01N27/60; G01R31/12; G03G9/08; (IPC1-7): G01N27/60; G03G9/08
Attorney, Agent or Firm:
Kobori Masashi
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