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Time-resolved measurement system and method for reconstructing optical parameters of turbid media

An optical parameter, time-resolved technology, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems with little research

Inactive Publication Date: 2009-12-30
TIANJIN UNIV
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Problems solved by technology

At present, foreign researchers have done a lot of basic research work in this area, but domestic research in this area is very little

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  • Time-resolved measurement system and method for reconstructing optical parameters of turbid media
  • Time-resolved measurement system and method for reconstructing optical parameters of turbid media
  • Time-resolved measurement system and method for reconstructing optical parameters of turbid media

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Embodiment Construction

[0068] Technical scheme of the present invention is as follows:

[0069] A time-resolved measurement system and method for reconstructing optical parameters of a turbid medium, that is, a system and method for measuring optical parameters of a turbid medium based on time-correlated single photon counting.

[0070] A device for measuring optical parameters of a turbid medium based on time-correlated single photon counting technology, including a light source system, a detection system, a computer and a data acquisition system. The light source system includes: three or more semiconductor picosecond pulse lasers, which can provide laser light sources with three or more wavelengths; one more optical switch is used to selectively switch the semiconductor lasers ; Variable attenuator, used to properly attenuate the laser light generated by the selected laser. The laser light emitted by the variable attenuator enters the turbid medium through the incident fiber to be scattered or a...

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Abstract

The invention belongs to the field of measurement of optical parameters, and particularly relates to a time-resolved measurement system and a method for reconstructing the optical parameters of turbid media. In order to realize fast, real-time, non-invasive in-vivo measurement of the optical parameters of an organizer under different wavelengths, the invention utilizes the technical scheme as follows: laser emerging from a variable attenuator enters into turbid media through incident optical fiber to be scattered or absorbed, and then reflected or transmitted laser from the surface of the medium is received by detection fiber; the laser detected by detection fiber is sent to a PMT detector with refrigeration function, electronic pulse output by the PMT detector is input to a time-correlated single photon counting (TCSPC) module, and the TCSPC module obtains a time extension curve emerging from an organization and inputs the curve into a computer for processing. The invention is mainly used for measuring the optical parameters of the organizer under different wavelengths.

Description

technical field [0001] The invention belongs to the field of optical parameter measurement in tissue optics research, in particular to a time-resolved measurement system and method for reconstructing optical parameters of turbid media. technical background [0002] With the development of society and the continuous improvement of people's economy and living standards, the requirements for non-destructiveness, comfort and reliability of medical diagnosis and treatment are also getting higher and higher. At present, almost all science and technology will revolve around the development of human beings and human beings, seeking their own meaningful growth points and development aspects, while the key research objects of life sciences are directed at some major issues of higher living organisms and the human body itself. Looking at modern medical technology, biomedical measurement is either based on the detection of biological signals such as body temperature and electrocardiogra...

Claims

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Application Information

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IPC IPC(8): A61B5/00
Inventor 高峰李娇张丽敏赵会娟
Owner TIANJIN UNIV
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