ELECTRONIC FORCE BALANCE - SHIMADZU CORPORATION

Title:

ELECTRONIC FORCE BALANCE

Document Type and Number:

Japanese Patent JP3555330

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide an electronic force balance which can obtain mass measurement results without error even when there is any temperature difference between the arrangement position of built-in weight and the inside of weighing chamber.
SOLUTION: Temperature sensors 7 and 8 are placed in a weighing chamber 4 and adjacent to a built-in weight 5, and a sensitivity coefficient computation part 14 uses respective outputs and adds a difference of buoyancy due to the difference of air concentration accompanying with the temperature difference between the adjacent position of the weight 5 and the inside of the chamber 4, when computing a sensitivity coefficient using the weight 5, thereby obtaining a sensitivity coefficient equivalent to that in case where the weight 5 is loaded within the chamber 4.

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Inventors:

Kunio Shimauchi

Application Number:

JP13541196A

Publication Date:

August 18, 2004

Filing Date:

May 29, 1996

Export Citation:

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Assignee:

SHIMADZU CORPORATION

International Classes:

G01G23/01; G01G23/48; (IPC1-7): G01G23/01; G01G23/48

Domestic Patent References:

JP257652B2
JP2867726B2

Attorney, Agent or Firm:

Yoshiro Kurauchi

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