Title:
CELL FOR MEASURING MOVING VALUE/ELECTRIC CHARGE AND MOBILITY OF CHARGED PARTICLE IN LIQUID AND LIQUID DEVELOPER
Document Type and Number:
Japanese Patent JP3914702
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cell for measurement which enables measuring or the moving value/electric charge and mobility of charged particles comprising a highly dense coloring agent.
SOLUTION: A quartz oscillator is applied to enable measuring of the moving condition of charged particles simultaneously from changes in current and mass. A QCM mass sensor 1 and a QCM controller are used. A measuring sample 7 of a liquid with the charged particles dispersed therein is introduced to a cell to fill between electrodes 3 and 8 and a high voltage with an arbitrary waveform is applied from a high voltage oscillator 4 to generate an AC electric field between the electrodes 3 and 8. This accomplishes simultaneous measurement of a current value at which the charged particles in the cell flow into the electrodes 3 and 8 and dependence on time of changes in mass attributed to variations in vibration on the surfaces of the electrodes. Correction is made using the result to distinguish a current value due to the actual movement of the charged particles from an energized electric charge and a value of current flowing through a bulk resistance thereby obtaining a measured value of electric charge Q with a higher accuracy.
Inventors:
Tsutomu Teraoka
Application Number:
JP2000335863A
Publication Date:
May 16, 2007
Filing Date:
November 02, 2000
Export Citation:
Assignee:
株式会社リコー
International Classes:
G01B7/00; G01N5/02; G01N27/60; G03G9/12; (IPC1-7): G01N5/02; G01B7/00; G01N27/60; G03G9/12
Domestic Patent References:
| JP60015554A | ||||
| JP3048147A | ||||
| JP6236074A | ||||
| JP6273304A | ||||
| JP11142313A |
Attorney, Agent or Firm:
Toshi Kuroda
Previous Patent: WATER SHUTDOWN DEVICE
Next Patent: GAME MACHINE AND VARIABLE DISPLAY DEVICE IN GAME MACHINE
Next Patent: GAME MACHINE AND VARIABLE DISPLAY DEVICE IN GAME MACHINE