发明名称 |
Viscoelasticity measuring method and viscoelasticity measuring apparatus |
摘要 |
[Problem] A viscoelasticity measuring method and a viscoelasticity measuring apparatus are provided which can measure viscoelasticity of a sample substance even when the quantity of the sample substance is minute.;[Solution] A solution or semisolid sample substance is brought into contact with an electrode of a sensor formed of a quartz crystal oscillator, a variation ΔFs of a resonance frequency Fs of the quartz crystal oscillator and a variation ΔFw of a half-value half frequency (F1-F2)/2 of a first frequency F1 and a second frequency F2 having conductance ½ Gmax which is a half of conductance Gmax of the resonance frequency Fs are measured, and any of a storage elastic modulus G′ of the sample substance based on the difference of squares of the variation ΔFs of the resonance frequency and the variation ΔFw of the half-value half frequency and a loss elastic modulus G″ of the sample substance based on the multiplication of the variation ΔFs of the resonance frequency and the variation ΔFw of the half-value half frequency is calculated. |
申请公布号 |
US9146187(B2) |
申请公布日期 |
2015.09.29 |
申请号 |
US201113634584 |
申请日期 |
2011.03.14 |
申请人 |
ULVAC, INC. |
发明人 |
Ichihashi Motoko;Itoh Atsushi;Yamamoto Yukiko |
分类号 |
G01H13/00;G01N11/16 |
主分类号 |
G01H13/00 |
代理机构 |
Kratz, Quintos & Hanson, LLP |
代理人 |
Kratz, Quintos & Hanson, LLP |
主权项 |
1. A viscoelasticity measuring method, comprising the steps of:
bringing a solution or semisolid sample substance into contact with an electrode of a sensor formed of a quartz crystal oscillator; measuring a variation ΔFs of a resonance frequency Fs of the quartz crystal oscillator and a variation ΔFw of a half-value half frequency (F1-F2)/2 of a first frequency F1 and a second frequency F2 having conductance ½ Gmax which is a half of conductance Gmax of the resonance frequency Fs; and calculating any of a storage elastic modulus G′ of the sample substance based on the difference of squares of the variation ΔFs of the resonance frequency and the variation ΔFw of the half-value half frequency and a loss elastic modulus G″ of the sample substance based on the multiplication of the variation ΔFs of the resonance frequency and the variation ΔFw of the half-value half frequency. |
地址 |
Chigasaki JP |