Wang Xiaoyu, Wang Jiang'an, Zong Siguang, Liu Tao, Li Shengyong. A new method for improving characteristic of laser-induced acoustic signals[J]. Infrared and Laser Engineering, 2014, 43(5): 1449-1453.
| Citation:
|
Wang Xiaoyu, Wang Jiang'an, Zong Siguang, Liu Tao, Li Shengyong. A new method for improving characteristic of laser-induced acoustic signals[J]. Infrared and Laser Engineering, 2014, 43(5): 1449-1453.
|
A new method for improving characteristic of laser-induced acoustic signals
- Received Date: 2013-09-05
- Rev Recd Date:
2013-10-03
- Publish Date:
2014-05-25
-
Abstract
For improving the quality of laser-induced acoustic signals, the laser-induced acoustic signal transducer was designed, its design theory and structure was analyzed and depicted. Experimental system was built. The pulsed laser was focused into water inside the transducer and in the free field respectively. A hydrophone was used to receive the acoustic signal and convert it into electric signals, a oscilloscope was connected with the hydrophone to display the signals. Laser-induced acoustic signals produced in two different environments have been compared. The results are as follows: compared with laser-induced acoustic signal produced in free field, that produced in the transducer has improved in its qualities. Peak pressures are 3 times larger. Signal energy is more concentrated below 60 kHz. Radiation angle has been decreased to 13.2in 1m distance. Signal attenuation gets slower.
-
References
|
[1]
|
|
|
[2]
|
Berth elot Y. Laser generation of sound by nonlinear thermale xpansion[R]. America AD Report A276955MF, 1994: 34-36. |
|
[3]
|
Blackmon F, L Antonelli. Remote, aerial, opto-acoustic communication and sonar[C]//SPIE, 2005, 5778: 800-808. |
|
[4]
|
|
|
[5]
|
Antonelli L, Blackmon F. Experiment demonstration of multiple pulse non-linear opto-acoustic signal generation and control[J]. Applied Optics, 2005, 44(1): 0103-0112. |
|
[6]
|
|
|
[7]
|
|
|
[8]
|
Zong Siguang, Wang Jiang'an, Ma Mingkui, et al.Investigation of laser-induced acoustics signal for target detection[J]. Chinese Journal of Lasers, 2010, 37(5): 1332-1337. (in Chinese) |
|
[9]
|
Zong Siguang, Wang Jiang'an. An opto-acoustic method for communication between aerial and underwater platforms[J]. Electronics Optics and Control, 2009, 16 (10): 75-79.(in Chinese) |
|
[10]
|
|
|
[11]
|
Liu Tao, Wang Jiang'an, Zong Siguang, et al. Design of underwater target detector by laser-induced sound signal [J].Infrared and Laser Engeering, 2012, 41(7): 1767-1772. (in Chinese) |
|
[12]
|
|
|
[13]
|
|
|
[14]
|
Shen Zhonghua, Shi Yifei, Yan Gang, et al. Progress in the applications of laser induced surface acoustic waves [J].Infrared and Laser Engineering, 2007, 36(S1): 239-243.(in Chinese) |
|
[15]
|
Sayal V K, Yadav L L, Mahesteari K P. Effect of time profile of laser pulse on the excitation of sound signals in a liquid with a series of laser pulse[J]. Journal of Sound and Vibration, 2011, 330: 1754-1761. |
-
-
Proportional views
-
DownLoad: