US 6,668,662 B2Granted

Viscoelasticity measuring device

AssigneeToshiba Ceramics Co., Ltd.

InventorsHiromichi Isogai, Katsuyoshi Kojima, Takayuki Masunaga

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Abstract

The invention provides a viscoelasticity measuring device which is capable of imparting a desired displacement profile to a sample under conditions close to that of actual use. The viscoelasticity measuring device is composed of a presser to impart displacements to a sample; a rod to convey the displacements to the presser; a control jig kept in contact with an upper end portion of the rod and adapted to move to impart a desired displacement to the rod; a load cell which detects a load exerted to the sample to detect a stress generated in the sample; and a displacement sensor to detect the displacement in the sample; the displacements imparted of the sample being defined in accordance with a configuration and a moving speed of the control jig.

Claims14

Dependent claims

A viscoelasticity measuring device which imparts a predetermined displacements to a sample to measure a resultant displacement and stress generated therewithin which comprises

a presser to impart displacements to a sample;
a rod to convey said displacements to said presser, said rod having a semispherical upper portion;
a control jig kept in contact with an upper end portion of said rod and adapted to move in a plane perpendicular to an axis of said rod at a predetermined speed to impart a desired displacement to said rod;
a load cell which detects a load exerted to the sample to detect a stress generated in the sample;
a displacement sensor to detect the displacement of said sample;
said control jig having a configuration and being adapted to be moved in a direction such that said displacement imparted to said sample is determined thereby.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/055,893Filed 28 Jan 2002
Priority: JP 2001-16440731 May 2001
Published: US 2002/0178795 A15 Dec 2002
Granted: 30 Dec 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G01N 3/56
Investigating strength properties of solid materials by application of mechanical stress: investigating resistance to wear or abrasion
G01N 2203/0071
Fatigue, creep, strain-stress relations or elastic constants: creep
G01N 2203/0085
Hardness, compressibility or resistance to crushing: compressibility
G01N 2203/0094
Visco-elasticity, solidification, curing, cross-linking degree, vulcanisation or strength properties of semi-solid materials: visco-elasticity