EAGER: Micromachined Thermophones with Engineered Thermo-acoustic Response

EAGER：具有工程热声响应的微机械热电偶

• 批准号: 0940825
• 负责人: Babak Ziaie
• 金额: $ 15万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0940825&HistoricalAwards=false
• 关键词: EAGER; Micromachined; Thermophones; Engineered; Thermo

EAGER: Micromachined Thermophones with Engineered Thermo-acoustic ResponseThe objective of this research is to design, fabricate, and characterize a group of novel air-operated ultrasonic transducers that can significantly push the limits of acoustic ranging and detection systems. The approach to achieve the above goal is to use thermo-acoustic generation of ultrasound by integrating wideband speakers and microphones on the same substrate. The substrate thermo-acoustic properties are engineered using micro and nano fabrication technologies in order to optimize the performance.The intellectual merits of the proposed research lies in the design and fabrication of highly-optimized thermo-acoustic transducers. These include tailoring substrate micro and nano architecture, development of fabrication processes to so, integration of optimally designed heaters on the substrates, fabrication and full characterization of such transducers.The broader impacts of the proposed research are advances in applications that require long range and high resolution ultrasonic ranging and imaging such as robotics, surveillance, and smart guidance systems. For example, navigation systems used for visually impaired individuals can benefit immensely from such high resolution ultrasonic transducers. In the education and outreach area, under-represented and minority undergraduate students will be included throughout the course of the proposed research project. In addition, the PI will develop an educational exhibition/booth to be located at the Purdue University Birck Nanotechnology Center lobby area for hands-on activity and demonstrations for local high-school students. The exhibition/booth will incorporate educational items related to ultrasonic transducers, its operating principle, and their applications in technology and natural world (e.g., bat sonar).

EAGER：具有工程热声响应的微机械热声器本研究的目的是设计、制造和表征一组新颖的气动超声换能器，其可以显著地推动声学测距和检测系统的极限。 实现上述目标的方法是通过在同一基板上集成宽带扬声器和麦克风来使用超声波的热声生成。 利用微纳加工技术对基片的热声特性进行工程化设计，以优化热声换能器的性能。本研究的智力价值在于设计和制造高度优化的热声换能器。 这些包括定制衬底微纳米结构，制造工艺的发展，集成优化设计的加热器上的基板，制造和充分表征这种transducers.The更广泛的影响，拟议的研究是在应用中的进步，需要长距离和高分辨率的超声波测距和成像，如机器人，监视和智能制导系统。 例如，用于视力受损个体的导航系统可以极大地受益于这种高分辨率超声换能器。在教育和外联领域，在拟议的研究项目的整个过程中，将包括代表性不足和少数民族的本科生。 此外，PI将在普渡大学Birck纳米技术中心大厅区域开发一个教育展览/展台，为当地高中学生提供动手活动和演示。 展览/摊位将包括与超声波换能器，其工作原理及其在技术和自然世界中的应用有关的教育项目（例如，蝙蝠声纳）。