公开(公告)号：US10180382B2

公开(公告)日：2019-01-15

申请号：US14374783

申请日：2013-01-25

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Masaharu Kuroda ,  Yasuyuki Yamamoto ,  Hiroshi Yabuno

IPC: G01N11/16 ,  G01N3/08

Abstract: A linear elastic modulus measurement method and a linear elastic modulus measurement device can reduce external disturbances such as oscillation and electrical noise, and accurately and stably measure the linear elastic modulus of a linear elastic body even in the case where damping due to viscous stress is large. The measurement device computes the oscillation velocity (dx/dt) of an oscillator from the displacement of the oscillator brought into contact with the linear elastic body, and multiplies dx/dt by a linear velocity feedback gain to generate a feedback control signal. The measurement device applies, to the oscillator, a force proportional to the oscillation velocity of the oscillator by the feedback control signal, to cause the oscillator to self-oscillate. The measurement device computes the linear elastic modulus of the linear elastic body from the frequency when the self-oscillation of the oscillator is detected and the mass of the oscillator.

公开(公告)号：US20150094964A1

公开(公告)日：2015-04-02

申请号：US14374783

申请日：2013-01-25

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Masaharu Kuroda ,  Yasuyuki Yamamoto ,  Hiroshi Yabuno

IPC: G01N11/16

CPC classification number: G01N11/16 ,  G01N3/08 ,  G01N2203/0094

Abstract: A linear elastic modulus measurement method and a linear elastic modulus measurement device can reduce external disturbances such as oscillation and electrical noise, and accurately and stably measure the linear elastic modulus of a linear elastic body even in the case where damping due to viscous stress is large. The measurement device computes the oscillation velocity (dx/dt) of an oscillator from the displacement of the oscillator brought into contact with the linear elastic body, and multiplies dx/dt by a linear velocity feedback gain to generate a feedback control signal. The measurement device applies, to the oscillator, a force proportional to the oscillation velocity of the oscillator by the feedback control signal, to cause the oscillator to self-oscillate. The measurement device computes the linear elastic modulus of the linear elastic body from the frequency when the self-oscillation of the oscillator is detected and the mass of the oscillator.

Abstract translation: 线性弹性模量测量方法和线性弹性模量测量装置可以减少诸如振动和电噪声的外部干扰，并且即使在由于粘性应力引起的阻尼大的情况下也能够精确和稳定地测量线性弹性体的线性弹性模量 。 测量装置从与线性弹性体接触的振荡器的位移计算振荡器的振荡速度（dx / dt），并通过线速度反馈增益乘以dx / dt以产生反馈控制信号。 测量装置通过反馈控制信号向振荡器施加与振荡器的振荡速度成比例的力，以使振荡器自振荡。 测量装置根据检测到振荡器的自振荡和振荡器的质量的频率，计算线性弹性体的线性弹性模量。