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Patent Searching and Data


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
Application Number:
JP19978392A
Publication Date:
August 24, 1993
Filing Date:
July 27, 1992
Export Citation:
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Assignee:
XEROX CORP
International Classes:
G01N27/60; G01R31/12; G03G9/08; (IPC1-7): G01N27/60; G03G9/08
Attorney, Agent or Firm:
Kobori Masashi