Development of Handy Type Photoacoustic Microscope System

手持式光声显微镜系统的研制

• 批准号: 08555104
• 负责人: TOKUNAGA Yoshiaki
• 金额: $ 1.6万
• 依托单位: Kanazawa Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08555104/
• 关键词: handy type; FFT; PVDF sensor; measurement; photoacoustic microscope; photoacoustic signal; 圧電薄膜センサー; ダイレクトオンセンシング法; Surface Plasmon Microscopy; 蒸着膜

1.We proposed a new one-dimensional model to analyze a photoacoustic (PA) signal of optically opaque materials measured by a polyvinylidene difluoride (PVDF) sensor. In order to check the validity of the proposed model, we measured the inclination of the frequency dependence of the signal measured by the PVDF and compared it with a theoretical value. The obtained inclinations were comparable with the simulated inclinations in the cases of the film thickness of the PVDF.2.We proposed a new method "reformed method of simultaneous measurement of multiple frequencies (RSMMF method)" in order to improve the signal-to-noise-ratio (SNR) in high frequency components of the PA signals. Moreover, the time for data treatment of a frequency dependence of the PA signal amplitude measured by this method could be reduced by 1/5 compared with that in a convebtional method using a lock-in amplifier.

1.提出了一种新的一维光声模型，用于分析聚偏二氟乙烯（PVDF）传感器测量的光学不透明材料的光声信号。为了检验所提出的模型的有效性，我们测量了由PVDF测量的信号的频率依赖性的倾斜度，并将其与理论值进行比较。在PVDF膜厚不同的情况下，得到的倾斜度与模拟的倾斜度相当。2.提出了一种改进的多频同时测量法（RSMMF法），以提高PA信号高频分量的信噪比。此外，用这种方法测量的PA信号幅度的频率依赖性的数据处理时间与使用锁定放大器的常规方法相比可以减少1/5。

项目成果

A.Minamide: "Research and Development of Photoacoustic Microscop System" World Congress on Ultrasonics. 34-35 (1997)

A.Minamide：“光声显微镜系统的研究与开发”世界超声大会。

A.Minamide: "Research and development of Photoqcoustic Microscope system" World Congress on Ultrasonics. 34-35 (1997)

A.Minamide：“光声显微镜系统的研究与开发”世界超声大会。

A.Minamide: "Research and Development of Photoacoustic Microscope System" World Congress on Ultrasonics. 2. 34-35 (1997)

A.Minamide：“光声显微镜系统的研究与开发”世界超声大会。

南出 章幸: "PVDF膜センサーによる不透明材料の光音響信号の測定" 第18回超音波シンポジウム. 161-162 (1997)

Akiyuki Minamide：“使用 PVDF 膜传感器测量不透明材料的光声信号”第 18 届超声波研讨会 161-162 (1997)。

A.Minamide: "Study on Sensors for Photoacoustic Microscope System" Japan Society for the Promotion of Science (piezoelectric device). 56. 109-112 (1997)

A.Minamide：“光声显微镜系统传感器的研究”日本学术振兴会（压电装置）。