Laser ultrasonic detection system and detection method thereof

A detection system, ultrasonic technology, applied in the direction of measuring devices, geophysical measurement, instruments, etc., can solve the problems of low measurement efficiency, poor coupling effect between probe and model surface, easily damaged probe, etc., and achieve realistic simulation effect

Active Publication Date: 2011-05-11
CHINA PETROLEUM & CHEM CORP +1
View PDF2 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, piezoelectric ultrasonic probes are far from meeting the above requirements when testing solid geological models, especially complex surface models.
Due to the large contact surface of the device detection part due to the process, when the curved surface model is tested, the coupling effect between the probe and the model surface is poor; because the existing ultrasonic probe can only transmit and receive narrowband, the measurement cannot reflect the wideband construction in the field. The actual situation received
In addition, because it is a contact measurement, the measurement efficiency is low and the accuracy is poor if the manual method is used; when moving

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Laser ultrasonic detection system and detection method thereof
  • Laser ultrasonic detection system and detection method thereof
  • Laser ultrasonic detection system and detection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049] The laser ultrasonic seismic model detection system is composed of a laser detection part, an ultrasonic emission part, a three-dimensional coordinate instrument platform and a high-speed analog-to-digital converter, which can perform non-contact high-speed solid geological model ultrasonic detection. Its implementation is as follows:

[0050] The system includes the hardware architecture of the laser ultrasonic seismic model detection system consisting of a strong pulse laser source, a laser Doppler vibrometer, a high-speed analog-to-digital converter, a computer and a three-dimensional coordinate instrument;

[0051] The transmitting part of the system uses a strong pulsed laser source. When testing the model, a strong pulsed laser source emits laser pulses to a certain point of the model (also known as a shot point), which will thermally expand or melt when heated, thereby generating ultrasonic waves and transmitting them to the interior of the model. This method can gen...

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

PUM

No PUM Login to view more

Abstract

The invention relates to a laser ultrasonic detection system and a detection method thereof. The system is used for generating and receiving field seismic exploration seismic waves simulated by an ultrasonic method under the indoor condition. A complete set of laser ultrasonic automatic acquisition system comprises a set of intense pulse laser source, a single-point laser Doppler seismograph, a three-dimensional laser Doppler seismograph, a 24-bit analog-to-digital converter, a three-dimensional coordinatograph and the like. The system solves the problems of a large number of conventional geologic model simulation methods, can perform single-point and three-component non-contact ultrasonic detection, and meets the requirement of modern geophysical exploration on fine and multi-component simulation.

Description

technical field [0001] The invention belongs to the field of seismic physics research, and relates to a laser ultrasonic detection device, in particular to a system for simulating the generation and reception of seismic waves in field seismic exploration under indoor conditions by using an ultrasonic method, and belongs to the field of laser vibration detection. Background technique [0002] Earthquake physical simulation research refers to the use of physical models to study earthquakes and related phenomena, especially fluctuation phenomena. It is an important part of experimental geology, also known as model geology. The most commonly used method in model geology studies is the ultrasonic method, and is therefore often referred to as ultrasonic seismic modeling. Ultrasonic seismic physical model experiments conduct indoor simulation observations of the propagation of seismic waves in various complex geological bodies through the observation of ultrasonic propagation in ge...

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

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01V1/00G01V1/02G01V1/18
Inventor 宗遐龄赵群李守才马国庆王辉明张国保黄德娟邵志东傅星菊薛诗桂
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap