Method and device for ultrasonic and nondestructive detection ofelasticity of viscoelastic medium

A viscoelastic, medium technology, applied in measurement devices, organ motion/change detection, ultrasonic/sonic/infrasound equipment control, etc. The effect of reducing device complexity and cost, reducing system complexity and cost, and reducing computing time
CN101699280AActive Publication Date: 2010-04-28BEIJING SONICEXPERT MEDICAL TECH CO LTD +1
1 Cites 59 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING SONICEXPERT MEDICAL TECH CO LTD
Publication Date
2010-04-28

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method and a device for the ultrasonic and nondestructive detection of the elasticity of a viscoelastic medium, which belong to the technical field of nondestructive measurements. The method comprises the following steps of: using an ultrasonic probe to produce low-frequency vibration on a medium to be detected, emitting ultrasonic waves to the medium to be detected and acquiring an ultrasonic signal returned from the medium to be detected; selecting an ultrasonic signal range for calculating the elasticity of the medium to be detected; using the selected ultrasonic signal to calculate the transmission speed of an elastic wave produced by the low-frequency vibration in the medium and further calculating the medium elasticity according to the obtained transmission speed of the elastic wave. The device comprises an ultrasonic wave energy converter contact, a vibrator fixing the ultrasonic wave energy converter contact and a control device. In the method and device, motion compensation of the ultrasonic probe is not required, so that calculation time is shortened; meanwhile, position detection is carry out without a position sensor, so that the system complexity and cost are lowered.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of non-destructive measurement, and relates to an elastic detection method and a device thereof for a viscoelastic medium that generates scattering signals after being irradiated by ultrasonic waves. Background technique

[0002] The non-destructive measurement technology of viscoelastic media is of great significance in the field of food industry. If the elasticity of food can be detected conveniently, it will be able to better control the quality of food. In addition, in the medical field, various chronic liver diseases (viral hepatitis, alcoholic hepatitis, nonalcoholic steatohepatitis, and autoimmune liver disease) will lead to liver fibrosis and cirrhosis. Liver fibrosis and cirrhosis are accompanied by changes in liver elasticity. If the elasticity of the liver can be detected non-invasively, the condition of liver disease can be monitored and evaluated, so that timely and effective treatment plans ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More