Photoacoustic sensor, detection device and manufacturing method of photoacoustic sensor
A photoacoustic sensor and detection device technology, applied in measurement devices, analysis of solids using sonic/ultrasonic/infrasonic waves, and material analysis using sonic/ultrasonic/infrasonic waves, etc., can solve the problem of narrow application range, ablation or oxidation, excitation efficiency Low problems, to avoid ablation or oxidation, enhance strength, and broaden the scope of application
Pending Publication Date: 2021-04-09
SHENZHEN INST OF ADVANCED TECH
View PDF6 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] This application provides a photoacoustic sensor, a detection device, and a method for making a photoacoustic sensor to solve the problem that the excitation efficiency of the existing photoacoustic sensor is low, the laser is easy to cause ablation or oxidation on the surface of the detection part, and the application range is narrow. question
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The application will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present application, but not to limit the scope of the present application. Likewise, the following embodiments are only some of the embodiments of the present application but not all of them, and all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.
[0024] The terms "first", "second", and "third" in this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at leas...
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
| Property | Measurement | Unit |
|---|---|---|
| Thickness | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a photoacoustic sensor, a detection device and a manufacturing method of the photoacoustic sensor. The photoacoustic sensor comprises a bonding layer which is used for being pasted on the surface of a to-be-detected part; and a composite layer which is arranged on the bonding layer, is made of polydimethylsiloxane and candle ash carbon nanoparticles, and is used for absorbing external incident laser, radiating ultrasonic waves outwards and carrying out nondestructive detection on the to-be-detected piece. The photoacoustic sensor provided by the invention can be directly attached to the surface of the to-be-detected part, so that an incident laser ultrasonic signal can be effectively enhanced, the surface of the to-be-detected part can be effectively prevented from being ablated or oxidized by the laser ultrasonic signal, and the application range of the photoacoustic sensor for laser ultrasonic detection is widened.
Description
technical field [0001] The present application relates to the technical field of non-destructive testing, in particular to a photoacoustic sensor, a detection device and a method for manufacturing the photoacoustic sensor. Background technique [0002] Nowadays, because the laser ultrasonic testing technology uses a non-contact method to realize the transmission and reception of ultrasonic signals, without any coupling and additional devices, it can realize large-area and fast scanning detection under extreme environmental conditions (high temperature, high pressure, strong radiation) , and has the advantages of high temporal and spatial resolution, and has received extensive attention in the field of nondestructive testing. [0003] However, under the thermoelastic mechanism, the excitation efficiency of ultrasonic signals is usually low, and the laser is easy to ablate or oxidize the material surface, which greatly limits the application of laser ultrasonic testing technol...
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
Login to View More IPC IPC(8): G01N21/17G01N29/04G01N29/24
CPCG01N21/1702G01N29/04G01N29/2437G01N2021/1706
Inventor 郭师峰冯伟王石陈丹张艳辉杨之乐张树潇
Owner SHENZHEN INST OF ADVANCED TECH